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Genera l Informatio n MODE L VARIATIO N Destinatio n U.S.A . Al l area s excep t Californi a Californi a Canad a Clas s 2-seate r 2 + 2 - seate r 2-seate r 2 + 2 - seate r 2-seate r 2 + 2 - seate r Mode l HLS30 U HLS30A U GHLS30 U GHLS30A U HLS30U V HLS30AU V GHLS30U V GHLS30AU V HLS30U N HLS30AU N GHLS30U N GHLS30AU N Engin e L2 8 Transmissio n mo ...
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Datsun 280Z (1974) - page 5
Genera l Informatio n IDENTIFICATIO N NUMBER S The uni t and car number s are stamped an d registered at the factory . The engine and ca r identification numbers ar e use d on lega l documents . These numbers are used for factory communication such as Technical Re- port , Warranty Claim, Servic e Journa l an d othe r information . SP05 3 Fig. GI-1 ...
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Datsun 280Z (1974) - page 6
Genera l Informatio n APPROXIMATE REFIL L CAPACITIES Fuel tank Engine cooling system ^ (wit h heater ) Engine crankcase *2 Transmission cas e Manual Automati c Differential cas e Liters 65 8.6 (9.4 ) 4.7 1. 5 5. 5 1. 3 U.S. measure 1 7 X gal. 9Xqt . (10 qt. ) 5 qt . 3 Kpt . 5 Kqt . 2 y K pt . Imper . measure 1 4 Yi gal. 7 %qt . (8 y K qt. ) 4>£ ...
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Datsun 280Z (1974) - page 7
Genera l Informatio n 1 LUBRICAN T SPECIFICATIO N (Fo r U.S.A . an d Canada ) from Jun e 1 , 1972 . Ite m Gasolin e engin e oil Gea r oil Transmissio n an d steering Differential Automati c T/M fluid Multipurpos e grease Brak e an d clutc h fluid Antifreez e Specification s SAE Classificatio n S D or SE API GL-4 API GL-5 Typ e DEXRO N NLGI 2 DO T 3 ...
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Datsun 280Z (1974) - page 8
Genera l Informatio n TOWIN G TIE-DOW N HOOK WARNING Only front hook s may be used fo r towing purposes. Whe n front hooks ar e used fo r towing, remove front apron an d front fender front to pre- vent possible interference wit h towing rope . Do no t use rear hook s fo r towing, as these have been designed as tie- down hook s and are no t strong e ...
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Datsun 280Z (1974) - page 9
.1ft . (• « I DATSUN 280 Z MODE L S3 0 SERIE S SECTIO N E T ENGIN E TUNE-U P NISSA N BASIC MECHANICAL SYSTE M ET - 3 IGNITIO N AN D FUE L SYSTE M ET - 5 EMISSIO N CONTRO L SYSTE M ET-1 0 TROUBL E DIAGNOSE S AN D FT qn CORRECTIONS LI ' J U NISSA N MOTOR CO. , LTD . TOKYO , JAPA N ...
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Datsun 280Z (1974) - page 37
Engine Tune-u p Conditio n Lo w compression (Trouble Pour th e Probable caus e Sticking or defective piston ring. Wor n pisto n ring or cylinder. shooting procedure ) engine oi l from plug hole , and the n measure cylinder compression. Compression increases. Compression does no t change. UNSTABL E ENGIN E IDLIN G Ignition system Engin e mechanical ...
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Datsun 280Z (1974) - page 38
Engin e Tune-u p Condition HIG H ENGIN E IDL E SPEE D ENGIN E POWE R NO T U P T O NORMA L Lo w compressio n Ignitio n syste m i n troubl e ENGIN E POWE R BELO W NORMA L Fue l syste m malfunctio n Ai r intak e syste m malfunctio n Overheatin g Probable caus e Incorrec t adjustment of idle speed adjusting screw. Incorrec t ignition timing. Malfunctio ...
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Datsun 280Z (1974) - page 39
Engine Tune-up Condition Overcoolin g Other s NOIS Y ENGIN E Ca r knockin g Mechanica l knockin g Crankshaft bearing knocking. Connecting ro d bearing knocking. Piston and cylinder noise. Piston pin noise. Wate r pum p noise. Others. Probable caus e Malfunctioning thermostat . Improper octane fuel . Improper tire pressure. Draggin g brake . Clutch ...
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Datsun 280Z (1974) - page 40
Engine Tune-up Conditio n Others . ABNORMA L COMBUSTIO N (backfire, after fir e run-on etc. ) Imprope r ignitio n timin g Fue l ste m malfunctio n Defectiv e cylinde r head , etc. Other s EXCESSIV E OI L CONSUMPTIO N Oi l leakag e Probabl e cause Note: Thi s noise will b e heare d whe n clutch i s disengaged . Wea r on clutch pilot bushing. Note: T ...
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Datsun 280Z (1974) - page 41
Engine Tune-u p Condition Excessiv e oi l consumptio n Other s POO R FUE L ECONOM Y Ignitio n syste m Se e the explanatio n o f the powe r decreas e Other s Emissio n contro l syste m Fue l syste m malfunctio n TROUBL E I N OTHE R FUNCTION S Decrease d oi l pressur e Probable caus e Cylinder and piston wear. Improper locatio n of piston rin g or re ...
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Datsun 280Z (1974) - page 42
Engin e Tune-u p Condition Decrease d oi l pressur e Excessiv e wea r o n the slidin g part s Scuffin g o f slidin g part s Probable caus e Increased clearance in various sliding parts . Blocked oi l strainer. Troubles in oi l gaug e pressure switch. Oi l pressure decreases. Damage d quality or contaminatio n of oil. Ai r leakag e fro m ai r intak ...
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Datsun 280Z (1974) - page 43
RL'#« W fr s • : • f K?A : * - DATSU N 280 Z MODE L S3 0 SERIE S NISSA N NISSA N MOTO R CO. , LTD . SECTIO N E M ENGIN E MECHANICAL GENERA L DESCRIPTION EM- 2 ENGIN E DISASSEMBL Y EM- 3 INSPECTION AN D REPAI R EM- 7 ENGIN E ASSEMBL Y EM-21 SERVIC E DAT A AN D r M 97 SPECIFICATIONS tfflZ / TROUBL E DIAGNOSE S AN D F M „ CORRECTION S im & ...
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Datsun 280Z (1974) - page 44
Engin e Mechanica l GENERA L DESCRIPTIO N CONTENT S L2 8 ENGIN E EM-2 CYLINDE R BLOCK EM-2 CRA N KSHAF T EM-2 PISTON S AN D CONNECTIN G ROD S EM-2 CYLINDE R HEA D EM-2 CAMSHAF T EM-2 VALV E MECHANIS M EM-3 CAMSHAF T DRIV E EM-3 MANIFOLD S EM-3 L2 8 ENGIN E The L28 engine is a 2,75 3 cc (168. 0 cu in) in-line, overhead camshaft, six - cylinder engin ...
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Datsun 280Z (1974) - page 45
Engin e Mechanica l supporte d b y No . 2 , 3 and 4 camshaft brackets ; lubricatio n is supplied to th e pipe from No . 2 and 4 brackets . VALVE MECHANIS M The valv e system has a pivot typ e rocker arm tha t is activated directly by the ca m mechanism; this has made its moving part s considerably lighter and provides ideal high-spee d performance. ...
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Datsun 280Z (1974) - page 46
Engin e Mechanica l ISASSEMBL Y T o remov e engin e fro m car , refe r t o relate d topi c unde r "Engin e Remova l an d Installation " i n Chassi s an d Bod y Servic e Manual , Sectio n ER . 1 . Remov e transmissio n fro m en - gine . 2 . Thoroughl y drai n eigin e oi l an d coolan t b y removin g drai n plugs . 3 . Plac e engin e assemb ...
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Datsun 280Z (1974) - page 47
Engine Mechanica l 17 . Remov e intak e manifol d an d hea t shiel d plat e a s a n assembly . 18 . Remov e exhaus t manifol d an d rea r engin e slinger . 19 . Loose n tensio n adjus t bol t o f idle r pulle y an d remov e compresso r driv e belt . 20 . Remov e tw o bolt s fastenin g ai r conditionin g compresso r o n lowe r side . The n remov e t ...
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Datsun 280Z (1974) - page 48
Engin e Mechanica l 36 . Remov e mai n bearin g caps . Us e Crankshaf t Mai n Bearin g Ca p Pulle r ST1651S00 0 t o remov e cente r an d rea r mai n bearin g caps . Kee p the m i n order . ST1651S000 — EM28 9 Fig. EM-26 Removing rear main bearing cap 37 . Remov e rea r oi l seal . EM29 0 Fig. EM-27 Removing rear oil seal 38 . Remov e crankshaft . ...
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Datsun 280Z (1974) - page 49
Engine Mechanica l INSPECTIO N AN D REPAI R CONTENT S PREPARATIO N FO R INSPECTION EM- 7 CYLINDE R HEA D AN D VALV E EM- 7 CHECKIN G CYLINDE R HEA D MATIN G FACE EM- 7 VALV E ASSEMBL Y EM- 7 VALV E SPRING EM- 8 ROCKER AR M AN D VALV E ROCKER PIVO T EM- 9 VALV E GUID E EM- 9 VALV E SEA T INSERTS EM-10 CAMSHAF T AN D CAMSHAF T BEARIN G EM-11 CAMSHAF ...
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Datsun 280Z (1974) - page 50
Engine Mechanica l H L D a Valv e head diameter m m (in ) Valv e length m m (in) Valv e stem diameter m m (in ) In . Ex. In . Ex. In . Ex. Valv e seat angl e In . & Ex. 44. 0 t o 44. 2 (1.73 2 t o 1.740) 35. 0 t o 35. 2 (1.37 8 t o 1.386) 114.9 t o 115.2 (4.52 4 t o 4.535 ) 115.7 t o 116.0 (4.55 5 t o 4.567 ) 7.965 t o 7.98 0 (0.313 6 t o 0.314 ...
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Datsun 280Z (1974) - page 51
Engine Mechanica l ROCKE R AR M AND VALV E ROCKE R PIVO T Check pivot head and ca m contac t an d pivot contac t surfaces of rocker ar m fo r damage or wear. If damage is found , replace them . A faulty pivot must be replaced togethe r wit h its corresponding rocker arm . VALV E GUID E Measur e clearance betwee n valv e guide and valv e stem . If c ...
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Datsun 280Z (1974) - page 52
Engine Mechanica l Fig. EM-44 Reaming valve guide 4 . Rea m bor e wit h valve guid e presse d in , usin g Valv e Guid e Reame r SetST1103S000 . Reamin g bore : 8.00 0 t o 8.01 8 m m (0.315 0 t o 0.315 7 in ) 5 . Correc t valve sea t surfac e wit h ne w valve guid e a s th e axis . Unit: m m (in) Intak e Exhaus t L2 8 9 (0.354) R - 1. 0 t o 1. 5 — ...
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Datsun 280Z (1974) - page 53
Engine Mechanica l 3 . Machine cylinder head recess t o th e concentri c circles in valv e guide center so tha t insert wil l have th e correc t fit. 4 . Ream th e cylinder hea d reces s a t roo m temperature . 5 . Heat cylinder head t o a tempera- tur e o f 150 t o 200° C (30 2 t o 392°F) . 6. Fi t insert ensuring tha t it bed s on th e botto m ...
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Datsun 280Z (1974) - page 54
Engine Mechanica l a 248 b 24 8 c 1 6 d 52 Unit e 1 4 : degree f 54 2. A ben d valv e is one-half of th e reading obtained when camshaf t is turne d one ful l revolution wit h a dial gaug e applied to th e center journal . L28 Camshaf t bend m m (in) Standard 0.02 (0.0008 ) Ben d limit 0.05 (0.0020 ) CAMSHAF T ALIGNMEN T 1. Check camshaft, camshaft ...
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Datsun 280Z (1974) - page 55
Engine Mechanica l EM30 3 Fig. EM-51 Checking cylinder block surface 3. Usin g a bor e gauge, measure cyl- inder bor e fo r out-of-round or taper . If out-of-round or taper is excessive, rebore cylinder wall s wit h a boring machine. Measurement should be take n along bores fo r taper and aroun d bore s fo r out-of-round. Se e Figure EM-53. Out-of- ...
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Datsun 280Z (1974) - page 56
Engin e Mechanica l EM12 6 Fig. EM-54 Measuring piston diameter Rebored siz e calculation D=A+B-C=A. + [0.005 t o 0.02 5 m m (0.000 2 t o 0.001 0 in) ] where , D: Honed diameter A: Skirt diameter as measured B: Piston-to-wall clearance C: Machine allowance [0.02 mm (0.000 8 in) ] Note: To preven t strai n du e to cuttin g heat, bor e cylinder s i n ...
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Datsun 280Z (1974) - page 57
Engine Mechanica l PISTONS , PISTO N PIN S AN D PISTO N RING S 1. Remove carbon fro m pisto n and ring grooves wit h a carbon scraper and a curved steel wire. Clean ou t oil slots in botto m land of oi l rin g groove. 2. Check for damage, scratches and wear. Replace if necessary. 3. Measure sid e clearance of rings in ring grooves as each ring is i ...
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Datsun 280Z (1974) - page 58
Engin e Mechanica l Connecting rod bend or torsion (per 100 mm or 3.94 in length) m m (in) Standard 0.0 3 (0.0012 ) Maximum 0.05 (0.0020 ) L2 8 Bi g en d play m m (in ) Standard 0.2 to 0.3 (0.008 t o 0.012 ) Maximu m 0.6 (0.024 ) CONNECTIN G ROD 1. If a connecting ro d has any fla w on either side of th e thrus t fac e or th e larg e end , correct ...
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Datsun 280Z (1974) - page 59
Engin e Mechanica l L2 8 Crankshaft bend mm (in ) Standard les s tha n 0.05 (0.0020 ) Maximum 0.10(0.0039 ) Note : When measuring bend , use a dial gauge . Bend valu e i s half o f th e reading obtaine d whe n crankshaft i s turne d on e full revolutio n wit h a dial gaug e attache d t o it s cente r journal . 4 . Afte r regrindin g crankshaft , fi ...
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Datsun 280Z (1974) - page 60
Engine Mechanica l Bearin g oil clearanc e L28 Mai n bearing clearance m m (in ) Connecting rod bearing clearance mm (in ) Standard 0.02 0 t o 0.072 (0.000 8 t o 0.0028 ) 0.02 5 t o 0.055 (0.001 0 t o 0.0022 ) Wea r limit 0.12(0.0047 ) 0.12(0.0047 ) 2. If clearance exceeds specifie d valve , replace bearing wit h an under- siz e bearing and grind c ...
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Datsun 280Z (1974) - page 61
Engine Mechanica l Connectin g ro d bearin g undersiz e Unit: mm (in ) L28 ST D 0.06 (0.0024 ) Undersize 0.12 (0.0047 ) Undersize 0.25 (0.0098 ) Undersize 0.50 (0.0197 ) Undersize 0.75 (0.0295 ) Unsersize 1.0 0 (0.0394 ) Undersize Bearin g to p thickness 1.49 3 t o 1.50 6 (0.058 8 t o 0.0593 ) 1.52 3 t o 1.53 6 (0.060 0 t o 0.0605 ) 1.55 3 t o 1.56 ...
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Datsun 280Z (1974) - page 62
< Engine Mechanica l ® to (3) : Timin g mar k 1 to 3 : Location hole Oblon g groov e (3 ) Location notch Befor e adjustment 0 Afte r adjustment EM31 1 Fig. EM-74 Adjusting camshaft sprocket location EM31 2 Fig. EM-76 Checking flywheel deviation 3. Check toot h surface s of rin g gear fo r flaw s or wear. Replace if necessary. Note: Replac e rin ...
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Datsun 280Z (1974) - page 63
Engine Mechanica l ENGIN E ASSEMBL Y CONTENT S PRECAUTION S . . CYLINDE R HEA D EM-21 PISTON AN D CONNECTIN G ROD EM-22 EM-21 ENGIN E ASSEMBL Y EM-22 PRECAUTION S 1. Us e thoroughl y cleaned parts . Especially, make sure tha t oi l holes are clear of foreign matter . 2. Whe n installing sliding part s such as bearings, be sure to apply engine oi l ...
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Datsun 280Z (1974) - page 64
Engine Mechanica l 4 . Instal l camshaf t sprocke t o n cam - shaf t an d tighte n i t t o specifie d torque . Tightenin g torque : 13 t o 15 kg- m (9 4 t o 10 8 ft-lb ) A t thi s time , chec k camshaf t en d play . EM31 8 Fig. EM-84 Installing camshaft sprocket 5 . Instal l rocke r arm s b y pressin g valve spring s dow n wit h a screwdriver . O n ...
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Datsun 280Z (1974) - page 65
Engine Mechanica l 5 . Instal l mai n bearin g ca p an d tight - e n bolt s t o specifie d torque . Tightenin g torque : 4. 5 t o 5. 5 kg- m (3 3 t o 4 0 ft-lb ) Notes : a . Appl y sealan t t o eac h sid e o f rea r mai n bearing cap an d eac h corner o f cylinde r bloc k a s show n i n Figure EM-79. b . Arrange parts s o arrow mark o n bearing cap ...
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Datsun 280Z (1974) - page 66
Engin e M.echanica l Fig. EM-99 Checking big end play Bi g end play : 0.2 t o 0.3 mm (0.00 8 t o 0.01 2 in ) 14. Install cylinder head assembly. EM33 0 Fig. EM-100 Cylinder head bolts (1 ) Thoroughly clean cylinder block and head surface. Do no t apply sealant to any othe r part of cylinder block and head sur - face. (2 ) Tur n crankshaft unti l No ...
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Datsun 280Z (1974) - page 67
Engine Mechanica l Fig. EM-105 Installing crankshaft pulley 22 . Finally tighte n head bolt s t o th e specifie d torqu e in thre e steps accord- in g to th e tightening sequence shown in Figure EM-106. Note tha t tw o type s of bolt s ar e used. Special too l Cylinder Hea d Bolt Wrenc h ST1012000 0 Tightening torque : 1 st tur n 4.0 kg- m (29 ft-l ...
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Datsun 280Z (1974) - page 68
Engine Mechanica l Valv e clearance mm (in ) Col d Hot Intak e Exhaust Intak e Exhaust L2 8 0.20 (0.0079 ) 0.25 (0.0098 ) 0.25 (0.0098 ) 0.30(0.0118 ) 29 . Install P.C.V. valv e hose and su b heat shield plate . 30 . Install thermosta t housing, ther- motime switch, temperatur e switch, water temperatur e switch and vacuum switching valv e as an as ...
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Datsun 280Z (1974) - page 69
Engine Mechanica l 44 . Install engine moun t bracke t i t t o cylinder bloc k b y hand . 45 . Fill engine oil u p t o specifie d (right hand) , oi l filter, oil pressure level. switch, oi l leve l gaug e and water drain Note: Do not overtighte n filter, or oi l plug. Whe n installing oil filter, fasten leakag e ma y occur . SERVIC E DAT A AND SPEC ...
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Datsun 280Z (1974) - page 70
Engin e Mechanica l TIGHTENIN G TORQU E Model L2 8 Cylinder head bolt s kg- m (ft-lb) 1s t tur n 4.0(29 ) 2nd tur n 6.5(47 ) 3rd tur n 7. 5 t o 8. 5 (5 4 t o 61 ) Connecting rod bi g end nut s kg- m (ft-lb) 4.5 to 5. 5 (3 3 to 40 ) Flywheel fixin g bolt s kg- m (ft-lb) 13 to 15 (9 4 to 108) Mai n bearing cap bolt s kg- m (ft-lb) 4.5 to 5.5 (3 3 to ...
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Datsun 280Z (1974) - page 71
Engine Mechanica l SPECIFICATION S Model L28 a ) Valv e mechanis m Valv e clearance (Hot ) mm (in ) Intak e 0.25(0.0098 ) Exhaust 0.30(0.0118 ) Valv e clearance (Cold) mm (in ) Intak e 0.20(0.0079 ) Exhaust 0.25(0.0098 ) Valv e hea d diameter mm (in) Intak e 44(1.73 ) Exhaust 35(1.38 ) Valv e stem diameter mm (in ) Intak e 7.965 t o 7.980 (0.313 6 ...
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Datsun 280Z (1974) - page 72
Engin e Mechanica l Valv e guide height fro m head surface mm (in ) 10.4 to 10. 6 (0.40 9 to 0.417 ) Valv e guide inner diamete r mm (in ) Intak e 8.000 t o 8.018 (0.315 0 t o 0.3157 ) Exhaust 8.000 t o 8.018 (0.315 0 t o 0.3157 ) Valv e guid e oute r diameter (standard ) mm (in ) Intak e 12.023 t o 12.034 (0.473 3 t o 0.4738 ) Exhaust 12.023 t o 1 ...
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Datsun 280Z (1974) - page 73
Engine Mechanica l c ) Connectin g ro d Center distance mm (in ) 130.35(5.1319 ) Bearin g thickness (S.T.D.) mm (in ) 1.49 3 to 1.50 6 (0.058 8 to 0.0593 ) Bi g end play mm (in) 0.20 to 0.30 (0.007 9 to 0.0118 ) Connecting rod bearing clearance mm (in) 0.025 to 0.055 (0.001 0 to 0.0022 ) Connecting rod bend or torsion (per 100 mm or 2.93 7 in) mm ( ...
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Datsun 280Z (1974) - page 74
Engine Mechanica l f ) Pisto n pi n Pi n diameter m m (in ) 20.99 3 t o 20.99 8 (0.826 5 t o 0.8267 ) Pi n length m m (in ) 72.0 0 t o 72.2 5 (2.834 6 t o 2.8445 ) Piston pin to piston clearance mm (in ) 0.006 to 0.013 (0.000 2 t o 0.0051 ) Interference fit of pisto n pin to connecting rod bushing mm (in ) 0.015 to 0.033 (0.000 6 to 0.0013 ) g ) Pi ...
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Datsun 280Z (1974) - page 75
Engine Mechanica l TROUBL E DfAGNOSE S AN D CORRECTION S Conditio n I . Noisy engin e Knocking of crankshaft and bearing . Pisto n and connecting rod knocking . Camshaft knocking . Timing chain noise . Camshaft and valv e mechanism knocking . Water pum p knocking . II. Othermechanica l trou l Stuck valve. Probable caus e Loose main bearing . Seize ...
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Datsun 280Z (1974) - page 76
Engine Mechanica l Conditio n Seize d valv e seat. Excessively wor n cylinder and piston . Fault y connecting rod . Fault y crankshaft bearing. Probable caus e Improper valv e clearnce. Weakne d valv e spring. Thin valv e head edge. Narrow valv e seat . Overheating. Ove r speeding. Stuck valv e guide . Shortage of engine oil . Dirty engine oil . Po ...
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Datsun 280Z (1974) - page 77
Engine Mechanica l SPECIA L SERVIC E TOOL S No . I Tool number & too l name Description Unit : m m (in ) For use on Reference page or figur e No . 1 . ST1932000 0 Oi l filter wrench Use d to take ou t oil filter. In tightening th e filter, do no t us e thi s tool . To preven t excess tightening , always install by hand . 120 (4.7) Al l model s ...
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Datsun 280Z (1974) - page 78
Engin e Mechanica l Too l number & too l name Description Unit : mm (in ) For use on Reference page or figur e No . ST1742000 1 Chai n stopper Use d to prevent chains fro m fallin g ou t of place in removing cylinder heads or ca m gears an d shafts. 40 (1.57) Al l L-serie s Fig. EM-1 4 Pag e EM- 5 SE19 5 ST1012000 0 Cylinder hea d bol t wrench ...
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Datsun 280Z (1974) - page 79
Engine Mechanica l No . Tool number & too l name Description Unit : mm (in ) Fo r use on Reference page or figur e No . 9 . ST1207000 0 Valv e lifter Use d to compress valv e spring by th e combined action of its ca m an d lever, thereb y facilitating the removal or installation of collect (for general use) . Al l model s Fig. EM-3 3 Fig.EM-8 1 ...
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Datsun 280Z (1974) - page 80
Engine Mechanica l Tool number & too l name Description Unit : mm (in ) For use on Reference page or figur e No . ST1531000 0 Crankshaft rear oil sea l drift Use d to push a lip typ e rear oil sea l fo r L-serie s engine int o place by givin g hammer blows . Al l L-serie s Fig. EM-9 4 SE18 9 EM0347000 0 Piston ring compressor Use d to compress ...
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Datsun 280Z (1974) - page 81
«i">! fTC * **£ ' : . Si. ;"^? % ':5 C DATSU N 280 Z MODE L S3 0 SERIE S NISSA N NISSA N MOTO R CO. , LTD . TOKYO , JAPA N SECTIO N E L ENGIN E LUBRICATIO N SYSTE M ENGIN E LUBRICATIO N F l ? SYSTE M SERVICE DAT A AND n « - SPECIFICATION S tL " 3 TROUBL E DIAGNOSES AN D n R CORRECTIONS tL " D SPECIA L SERVICE TOO ...
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Datsun 280Z (1974) - page 82
Engine Lubricatio n System ENGIN E LUBRICATIO N SYSTEM CONTENT S LUBRICATIO N CIRCUI T EL-2 OI L PUM P EL-2 REMOVA L EL-2 INSTALLATIO N EL-2 DISASSEMBLY AN D ASSEMBL Y EL-3 INSPECTION EL- 3 OI L PRESSUR E REGULATO R VALV E EL- 3 OI L FILTE R EL-4 OI L PRESSUR E RELIE F VALV E EL-4 OI L PRESSUR E WARNIN G SWITCH EL-4 EL03 0 Fig. EL-1 Lubricating cir ...
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Datsun 280Z (1974) - page 83
Engine Lubricatio n System Punc h mar k ' Oi l hol e EL00 9 Fig.EL-3 Aligning punch mark and oil hole 3. Usin g a ne w gasket, install oi l pum p and driv e spindle assembly so tha t th e projection on it s to p is located in an 11 : 25 a.m. position . At this time , th e smalle r bow-shape will be placed towar d th e front as shown in Figure ...
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Datsun 280Z (1974) - page 84
Engin e Lubricatio n Syste m no t adjustable. At th e release d posi- tion , th e valv e permits the oi l to by-pass throug h th e passag e in the pum p cove r to th e inlet sid e of the pump . Check regulator valv e sprin g to ensure tha t sprin g tension is correct . Specifications Regulator valv e sprin g Free length Installed length/loa d OI L ...
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Datsun 280Z (1974) - page 85
Engine Lubricatio n System SERVIC E DAT A AN D SPECIFICATION S Oi l pum p Roto r sid e clearance (oute r t o inner rotor ) Roto r tip clearance Outer roto r t o bod y clearance Roto r to botto m cove r clearance Standard 0.04 t o 0.08 mm (in ) , ' (0.001 6 t o 0.0031 ) mm (in ) less than 0.12 (0.0047 ) . , 0.15 t o 0.21 mm (in ) , (0.005 9 t o ...
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Datsun 280Z (1974) - page 86
Engine Lubricatio n System SPECIAL SERVIC E TOOL No . 1 . Tool number & tool name ST1932000 0 Oi l filter wrench Description Unit : mm (in ) This too l is used to take oi l filter ou t of place . In tightening th e filter, do no t use thi s too l to prevent excess tightening. 12 0 (4.7) SE19 7 Fo r use on Al l models Reference page or figur e N ...
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Datsun 280Z (1974) - page 87
'%•• ' DATSU N 280 Z MODE L S3 0 SERIE S SECTIO N C O COOLIN G SYSTE M NISSA N NISSA N MOTO R CO. , LTD . COOLING SYSTE M CO- 2 SPECIFICATION S CO- 7 TROUBLE DIAGNOSE S AND r n „ CORRECTION S bU ' d TOKYO , JAPAN ...
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Datsun 280Z (1974) - page 88
Coolin g Syste m COOLING SYSTE M CONTENT S DESCRIPTIO N CO- 2 COOLAN T LEVE L CO- 3 DRAININ G AN D FLUSHIN G TH E COOLIN G SYSTEM CO-3 WATER PUM P CO-3 REMOVA L AN D INSTALLATIO N CO- 3 DISASSEMBL Y CO- 3 INSPECTION AN D ADJUSTMEN T CO- 3 TEM-COUPLIN G CO-4 INSPECTION CO- 5 THERMOSTA T CO-5 REMOVA L AN D INSTALLATIO N CO-5 INSPECTION CO- 5 RADIATO ...
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Datsun 280Z (1974) - page 89
Coolin g Syste m COOLAN T LEVE L The coolant leve l should be check- ed and maintained as follows: Abou t 4 0 m m (1.57 5 in ) below th e botto m of fille r neck . CAUTION : T o avoi d seriou s persona l injury , neve r remov e radiato r ca p quickl y when engin e i s hot. Sudde n releas e o f coolin g syste m pressur e i s ver y dangerous . I f i ...
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Datsun 280Z (1974) - page 90
Coolin g Syste m TEM-COUPLIN G 1 2 3 4 5 Bi-meta l thermosta t Slid e valve Reserv e chambe r for "OFF " Bearin g Driving chambe r 6 7 8 9 Couplin g par t (labyrinth ) Drive n par t Pum p uni t oi l outle t Oil inle t CO04 0 Fig. CO-4 Cross-sectional view of Tem-coupling Tem-coupling is a typ e of fa n coupling which is provided wit h a t ...
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Datsun 280Z (1974) - page 91
Coolin g Syste m INSPECTIO N Check Tem-coupling fo r oil leakage or ben d of bimetal . If th e above symptoms are found , replace it wit h a new on e as an assembly. THERMOSTA T A wax pellet typ e thermosta t is mounte d in th e thermosta t housing at th e cylinder head water outlet . The founction of th e thermosta t is to contro l th e flo w of c ...
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Datsun 280Z (1974) - page 92
Coolin g Syste m 1. Drain coolant int o a clean con- tainer . 2 . Disconnect radiator' s upper and lower hoses. 3 . Remove radiato r lower shroud attaching bolt s and the n remove lower shroud downward (for the model equipped wit h ai r conditioner) . 4. On a car wit h automatic transmis- sion, disconnect cooler inlet and outle t lines from ra ...
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Datsun 280Z (1974) - page 93
Coolin g Syste m SPECIFICATION S Engine L28 Radiato r Type Corrugated fin and tub e Ca p relief pressure kg/cm 2 (psi) 0.9(13 ) Testing pressure kg/cm (psi) 1.6(23 ) Wate r capacity (including engine) liter (U.S . qt , Imp . qt ) 9.4(10, 8 ) Fan Tem-patrol Installed No . o f blades x oute r diameter m m (in ) 8 x 410(16.14 ) Thermosta t Valv e open ...
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Datsun 280Z (1974) - page 94
Coolin g Syste m TROUBL E DIAGNOSE S AN D CORRECTION S Condition Los s of water Poor circulation Corrosion Overheating Overcooling Probable caus e Damage d radiato r seams. Leaks at heater connections or plugs. Leak at wate r temperatur e gauge. Loose joints . Damage d cylinder head gasket. Cracked cylinder block . Cracked cylinder head . Loose cyl ...
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Datsun 280Z (1974) - page 95
SERVlC t MANUA L DATSU N 280 Z MODE L S3 0 SERIE S NISSA N NISSA N MOTO R CO. , LTD . SECTIO N E F FUE L SYSTE M AI R CLEANER EF- 2 ELECTRONIC FUE L INJECTIO N SYSTE M CONSTRUCTION AND FUNCTION EF- 3 TOKYO , JAPAN ...
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Datsun 280Z (1974) - page 96
Engine Fue l The ai r cleaner, located between th e front grill e an d th e radiator , is secured t o th e radiato r core suppor t wit h fou r screws. The ai r cleaner element is a viscous AI R CLEANE R paper typ e an d requires no cleaning. Note: Neve r attemp t t o clea n th e ele - men t wit h a brus h o r ai r blast . REPLACEMENT 1. Remove thre ...
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Datsun 280Z (1974) - page 97
Engin e Fuel ELECTRONI C FUE L INJECTIO N SYSTE M CONSTRUCTIO N AN D FUNCTIO N CONTENT S I. FEATURE S EF- 3 TROUBL E DIAGNOSES EF-18 II . ELECTRONI C FUE L INJECTIO N INSPECTION EF-20 SYSTEM OPERATIO N EF- 3 DESCRIPTIO N EF-20 III . ELECTRONI C CONTRO L SYSTEM EF- 6 CONTINUIT Y CHECK EF-20 IV . FUE L INJECTIO N PULSE EF- 8 CHECKIN G FUNCTIONA L PAR ...
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Datsun 280Z (1974) - page 98
Engin e Fue l signa l fro m the ignition coil does no t specif y th e timing fo r injection. It specifie s th e frequency of injections only, sinc e th e injection timing is always se t to be constant . 2 . Ai r flo w syste m Intak e ai r fro m th e ai r cleaner is metered at th e ai r flo w meter , flow s throug h th e throttl e chamber and int o ...
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Datsun 280Z (1974) - page 99
m T l (In > • RjaFLOW + - AI R RO W <> ^ VACUU M — ^ POWE R SOURC E ™ — INPU T SIGNA L — — OUTPU T SENA L CONTROL UNI T STARTER MOTO R ...
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Fron t Axl e & Fron t Suspensio n a ) Inner rac e flakin g b) Roller flaking c) Cracke d inner race d) Cracked roller e) Reces s on inner rac e f ) Reces s o n outer rac e ».-:] ] i k m g ) Reces s o n roller h) Rust on oute r race FA26 7 Fig. FA-17 Bearing's appearance INSTALLATION Install front axle in th e revers e order of removal, no ...
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Datsun 280Z (1974) - page 371
Fron t Axl e & Fron t Suspensio n Note: I n orde r t o assur e correc t bear - in g preloa d an d t o extend servic e lif e o f whee l bearings , b e sur e t o avoi d dir t an d foreig n particle s get - tin g i n bearings , greas e seal , washe r an d spindl e nut. 9. Install caliper and connec t brake tube . 10. Afte r lowering ca r to the gr ...
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Datsun 280Z (1974) - page 372
Fron t Axl e & Fron t Suspensio n i REMOVA L 1 . Jac k u p ca r an d suppor t i t wit h safet y stands . Remov e wheel . 2 . Loose n brak e tube , remov e brak e hos e lockin g spring , withdra w plate , an d remov e brak e hos e fro m stru t assembl y bracket . FA46 1 Tightening torque : 1. 5 t o 1. 8 kg- m (1 1 t o 1 3 ft-lb) Fig. FA-23 Disco ...
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Datsun 280Z (1974) - page 373
Fron t Axl e & Fron t Suspensio n FA27 5 Fig. FA-29 Removing piston rod and cylinder Note: Unde r n o circumstance s shoul d pisto n an d piston ro d guid e b e remove d fro m cylinde r sinc e thes e ar e adjuste d t o eac h other t o pro - vid e precisio n matin g surface s an d shoul d b e handle d a s a matche d set. 9. Drain fluid thoroughl ...
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Datsun 280Z (1974) - page 374
Fron t Axl e & Fron t Suspension Notes : a . When tightenin g glan d packing , i t i s importan t tha t pisto n rod b e ex - tende d approximatel y 12 0 m m (4.7 2 in ) fro m en d o f oute r casing t o expe l mos t o f air ou t o f strut . b . Gland packin g shoul d b e tightene d t o 7. 0 t o 13. 0 kg-m (5 1 t o 9 4 ft-lb ) torqu e wit h th e ...
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Datsun 280Z (1974) - page 375
Fron t Axl e & Fron t Suspensio n COMPRESSIO N ROD AN D STABILIZE R BA R REMOVA L 1. Jac k up ca r and suppor t it wit h safety stands ; remove wheel. 2. Remove splash board . 3. Bac k of f nu t © securing com- pression ro d to bracket , and remove bolt s @ which secure compression ro d to transverse link . Compression rod can the n b e take n ...
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Datsun 280Z (1974) - page 376
Fron t Axl e & Fron t Suspensio n INSPECTIO N Transverse link 1. Check fo r sign s of cracks, distor- tio n or othe r damage. Replace if any of above condition s are beyon d repair. 2. If rubber bushing shows evidence of cracking, replace wit h a ne w one . Bal l joint 1. Bal l join t is assembled at factory and cannot be disassembled. Measure ...
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Datsun 280Z (1974) - page 377
Fron t Axl e & Fron t Suspensio n FA40 8 Tightenin g torque : 4. 5 t o 5. 0 kg- m (3 3 t o 3 6 ft-lb ) Fig.FA-47 Removing suspension crossmember INSPECTIO N 1. Check suspension crossmember fo r evidence of deformation and crack- ing; if necessary, replace . INSTALLATION Install suspension crossmember in th e reverse order of removal. Tightening ...
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Datsun 280Z (1974) - page 378
Fron t Axl e & Fron t Suspensio n Coi l sprin g Active turn s of coil Free length m m (in ) Spring constan t kg/mm (lb/in ) S30 9. 5 40 6 (15.98 ) 1.84(103.0 ) GS30 8. 5 399(15.71 ) 2.06(115.4 ) Stru t assembl y Damping force at pisto n speed 55 (121)/3 0 (66 ) 0.3 (0.98 ) m (ft)/sec . Expansion/Compression kg (lb)/kg (lb ) Fron t wheel bearin ...
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Datsun 280Z (1974) - page 379
Fron t Axl e & Fron t Suspension Tightenin g torqu e Fron t axl e kg- m (ft-lb) Brak e disc roto r and hu b assembly tightening bol t 3.9 to 5. 3 (2 8 to 38) Brak e tub e installation nu t 1. 5 to 1.8(1 1 to 13 ) Whee l bearing lock nu t 2.5 to 3.0 (1 8 to 22) Dis c brak e caliper fixin g bol t 7.3 t o 9.9 (5 3 t o 72 ) Baffl e plat e installat ...
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Datsun 280Z (1974) - page 380
Fron t Axl e & Fron t Suspensio n TROUBL E DIAGNOSE S AN D CORRECTION S Conditio n Vibration , shoc k an d shimmyin g o f steerin g wheel. Vibration : Loose connectio n of th e serration part s an d wea r of each par t of linkage cause vibration of front wheels, which in tur n is transmitte d to th e steering wheel. This is ver y noticeable whe ...
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Datsun 280Z (1974) - page 381
Fron t Axl e & Fron t Suspensio n Conditio n Instabilit y of car Stiff steerin g whee l (check-up procedure ) Jack up front wheels, detac h th e steering gea r and operat e th e steering wheel , and ; If it is light, check steering linkage, and suspension groups . If it is heavy, check steering gea r and steering column groups . Excessiv e stee ...
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Datsun 280Z (1974) - page 382
Fron t Axl e & Fron t Suspensio n Condition Gratin g tir e nois e Jumpin g o f dis c whee l Excessivel y o r partiall y wor n tire . Probable caus e Improper tire pressure. Incorrect wheel alignment. Deformed knuckle spindle and suspension linkage. Improper tire pressure. Imbalance wheels. Damage d shock absorber. Fault y tire . Deformed wheel ...
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Datsun 280Z (1974) - page 383
Fron t Axl e & Fron t Suspensio n SPECIA L SERVIC E TOOL S Tool numbe r & too l name ST3530000 0 Fron t wheel bearing drift Description Unit : mm (in) This too l is used to assemble front wheel bearing. 59 (2.32) dia. Fo r use on S30 Reference pag e o r figur e No . Fig. FA-18 KV4010080 0 Groun d packing wrench This too l is used to remove ...
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Datsun 280Z (1974) - page 384
Fron t Axl e & Fron t Suspensio n No . 5 . Tool number & too l name ST36710000 Transvers e lin k bushin g replace r ST3671001 0 Drif t ST36710020 Suppor t bas e Descriptio n Unit: m m (in) Thi s too l i s use d t o replac e transvers e lin k bushing . I n its application, alig n the tool with the bushin g cente r by usin g a press . 34.5 (1 ...
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Datsun 280Z (1974) - page 385
DATSU N 280 Z MODE L S3 0 SERIE S NISSA N NISSA N MOTO R CO. , LTD . TOKYO , JAPA N SECTIO N R A REA R AXL E & REA R SUSPENSIO N DESCRIPTIO N RA - 2 REA R AXLE RA - 4 REA R SUSPENSIO N RA - 7 SERVIC E DAT A AND D1 n SPECIFICATION S KA ' " TROUBLE DIAGNOSES AND Rj m CORRECTION S KA ' I J SPECIA L SERVICE TOOLS RA-14 ...
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Datsun 280Z (1974) - page 386
Rea r Axl e & Rea r Suspensio n DESCRIPTIO N The rear suspension is a stru t typ e independen t suspension. Briefly, thi s means tha t th e rear wheel is supporte d b y th e stru t and transverse link , th e gear carrier is aligne d independentl y and separately fro m th e suspension, and th e gear carrier is installed directly o n th e bod y w ...
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Datsun 280Z (1974) - page 387
Rea r Axl e & Rea r Suspensio n © C D 9 1 0 1 1 1 2 Rear stru t mounting insulator Space r Bound bumper rubber Dust cove r Strut assembl y Transvers e lin k Differential cas e mounting member Link mounting brace Stabilizer bar Differential cas e mounting front member Differential cas e mounting front insulator Dampe r plate RA31 6 Tightening t ...
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