| 1975-77 MAINTENANCE STANDARD |
|---|
| Engine |
|---|
Item | Assembly standard | Service limit |
Cylinder head gasketed surface warpage | 0.8 (0.0032) | 0.1
(0.0039) |
Valve to guide clearance IN | 0.01-0.04 (0.0004-0.0016) | 0.08
(0.0032) |
Valve to guide clearance EX | 0.05-0.07 (0.0020-0.0028) | 0.1
(0.0039) |
Valve guide I.D. IN,EX | 6.60-6.62 (0.3598-0.2606) | 6.64
(0.2614) |
Valve seat width | 1.4 (0.0551) | --- |
Rocker arm I.D. | 14.00-14.018 (0.5512-0.5519) | 14.05
(0.5532) |
Rocker arm shaft O.D. | 13.966-13.984 (0.5498-0.5505) | 13.94
(0.5488) |
I.D. of camshaft journal of cylinder head (Right & left) | 27.000-27.021 (1.0630-
1.0638) | 26.98 (1.0623) |
I.D. of camshaft journal of cylinder head (Center) | 25.000-25.021 (0.9843-
0.9851) | 24.98 (0.9835) |
Camshaft O.D. (Right & left) | 26.954-26.970 (1.0612-1.0619) | 26.91
(1.0595) |
Camshaft O.D. (Center) | 24.954-24.970 (0.9824-0.9831) | 24.91
(0.9807) |
Camshaft Base dia. | 29.98-30.02 (1.1804-1.1819) | 29.93
(1.1784) |
Cam lift IN | 8.42-8.58 (0.3315-0.3378) | 8.37 (0.3295) |
Cam lift EX | 8.42-8.58 (0.3315-0.3378) | 8.37 (0.3295) |
Valve spring free length (Inner) | 40.2 (1.5827) | 39 (1.5354) |
Valve spring free length (Outer) | 43.75 (1.5827) | 39 (1.5354) |
Cylinder block gasketed surface warpage | 0.08 (0.0032) | 0.1
(0.0039) |
Cylinder I.D. | 72.000-72.015 (2.8346-2.8352) | 72.1 (2.8386) |
Cylinder Out of round at bore | 0.1 (0.0039) | 0.15 (0.0059) |
Cylinder Difference in I.D.s between top and bottom | 0.007-0.012
(0.0003-0.0040) | 0.05 (0.0020) |
Cylinder Difference in I.D.s between cylinders | 0.02 (0.0008) | 0.1
(0.0039) |
Piston O.D. at skirt | 71.945-71.97 (2.8325-2.8335) | 71.85
(2.8288) |
Cylinder to piston clearance | 0.03-0.07 (0.0012-0.0028) | 0.15
(0.0059) |
Piston ring groove width (top & second) | 1.5-1.52 (0.0591-0.0599) | 1.6
(0.0630) |
Piston ring groove width (oil) | 2.805-2.82 (0.1104-0.1110) | 2.9
(0.1142) |
Piston ring side clearance (top & second) | 0.02-0.045
(0.0008-0.0018) | 0.15 (0.0059) |
Piston ring gap (top & second) | 0.25-0.40 (0.0098-0.0158) | 0.7
(0.0276) |
Piston ring gap (oil) | 0.2-0.9 (0.0079-0.0354) | 1.1 (0.0433) |
Connecting rod axial play | 0.15-0.30 (0.0059-0.0118) | 0.4
(0.0158) |
Crankshaft bend | 0.03 (0.0012) | 0.05 (0.0019) |
Crankshaft out of round (journal) | 0.005 (0.0002) | 0.008
(0.0003) |
Crankshaft taper (journal) | 0.002 (0.00008) | 0.004 (0.0002) |
Crankshaft oil clearance (journal) | 0.02-0.044 (0.0008-0.0017) | 0.08
(0.0032) |
Oil pump inner to outer rotor radial clearance (main, clutch) | 0.15
(0.0059) | 0.35 (0.0138) |
Oil pump rotor to body side clearance (main) | 0.02-0.07
(0.0008-0.0028) | 0.12 (0.0047) |
Oil pump rotor to body side clearance (clutch) | 0.02-0.1
(0.0008-0.0039) | 0.12 (0.0047) |
Oil pump outer rotor to body radial clearance | 0.15-0.21
(0.0059-0.0083) | 0.41 (0.0161) |
Clutch friction disc thickness | 3.42-3.58 (0.1347-0.1410) | 3.2
(0.1260) |
Clutch plate warpage | --- | 0.3 (0.0118) |
Clutch spring free length | 35.5 (1.3976) | 34.2 (1.3386) |
Clutch spring load (in six springs) | 142.8 kg/23 mm (314.8 lb/0.9055
in.) | 130.8 kg/23 mm (288 lb/0.9055 in.) |
Transmission gear backlash (Low) | 0.044-0.121 (0.0017-0.0048) | 0.2
(0.0079) |
Transmission gear backlash (Second) | 0.044-0.088 (0.0017-0.0035) | 0.17
(0.0067) |
Transmission gear backlash (Third, fourth, top) | 0.046-0.094
(0.0018-0.0037) | 0.17 (0.0067) |
Transmission shaft to M4/C2/C3 gears clearance | 0.040-0.082
(0.0016-0.0032) | 0.182 (0.0072) |
C1/M4 gears to thrust bushings clearance | 0.040-0.082
(0.0016-0.0032) | 0.182 (0.0072) |
Gearshift fork I.D. | 13.000-13.018 (0.5118-0.5125) | 13.04
(0.5134) |
Shift fork shaft O.D. | 12.966-12.984 (0.5105-0.5112) | 12090
(0.5079) |
Gearshift drum O.D. (Inside) | 11.966-11.984 (0.4711-0.4718) | 11.95
(0.4705) |
Gearshift drum O.D. (Outside) | 35.959-35.980 (1.4157-1.4166) | 35.92
(1.4142) |
Gearshift drum Groove width | 13.000-13.018 (0.5118-0.5125) | 13.04
(0.5134) |
Final gear shaft damper spring free length | 110.9 (4.3661) | 100.0
(3.9370) |
Starter carbon brush length | 12-13 (0.4724-0.5118) | 5.5
(0.2165) |
Starter carbon brush spring tension | 560-680 gr. (19.75-23.99 oz.) | 400
gr. (14.11 oz) |
