SECTION 10 -- ENGINE -- CHAPTER 1
7
CRANKCASE/CYLINDER BLOCK DATA mm (in)
Crankcase............................................... cast--iron monobloc with cylinder liners,
crankshaft, camshaft and tappets
Cylinder bore diameter .................................... 104.000 to 104.024
(4.09944 to 4.0954)
Oversized cylinder bore diameter ........................... 104.500 to 104.524 (4.1141 to 4.1151)
Main journal half bearing seat diameter external no. 1--5 87.982 to 88.008 (3.4638 to 3.4648)
internalno. 2--3--4 87.977 to 88.013 (3.4636 to 3.4650)
Camshaft bushing seat diameter:
--front .................................................. 59.222 to 59.248 (2.3315 to 2.3325)
--intermediate ........................................... 59.222 to 59.248 (2.3315 to 2.3325)
--rear ................................................... 59.222 to 59.248 (2.3315 to 2.3325)
Diameter of standard tappet bores in crankcase .............. 16.000 to 16.030 (0.6299 to 0.6311)
CRANKSHAFT AND BEARINGS DATA mm (in)
Crankshaft .............................................. balanced with integral counterweights
Standard journal diameter ................................. 82.987 to 83.013 (3.2671 to 3.2682)
Journal undersizes ....................................... 0.250 to 0.500 (0.0098 to 0.0196)
Main journal half bearing thickness .......................... 2.456 to 2.464 (0.0966 to 0.0970)
Main half bearing undersizes (internal diameter) .............. 0.250 to 0.500 (0.0098 to 0.0196)
Clearance between bearings and main journal no. 1--5 0.041 to 0.119 (0.0016 to 0.0046)
n. 2--3--4 0.041 to 0.103 (0.0016 to 0.0040)
Standard crankpin diameter ................................ 68.987 to 69.013 (2.7160 to 2.7170)
Crankpin undersizes ...................................... 0.250 to 0.500 (0.0098 to 0.0196)
Standard connecting rod half bearing thickness ............... 1.955 to 1.968 (0.0769 to 0.0774)
Connecting rod half bearing undersizes (internal diameter) ..... 0.250 to 0.500 (0.0098 to 0.0196)
Bearingtocrankpinclearance .............................. 0.033 to 0.041 (0.0012 to 0.0016)
Standard crankshaft thrust washer width ..................... 37.280 to 37.380 (1.4677 to 1.4716)
Width of main bearing for thrust ............................. 25.980 to 26.480 (1.0228 to 1.0425)
Width of corresponding crankshaft journal .................... 37.475 to 37.550 (1.4753 to 1.4783)
Crankshaft assembly endfloat .............................. 0.172 to 0.240 (0.0067 to 0.0094)
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