Advertisement
CRANKSHAFT AND BEARINGS DATA
CRANKSHAFT AND BEARINGS DATA
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard journal diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Journal undersizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main journal half bearing thickness . . . . . . . . . . . . . . . . . . . . . . . . . .
Main half bearing undersizes (internal diameter) . . . . . . . . . . . . . .
Bearing shell to journal clearance . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum permitted wear clearance . . . . . . . . . . . . . . . . . . . . . . . . .
Standard crankpin diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankpin undersizes . . . . . . . . . . . . . . . . . . . . . . . .
Standard connecting rod half bearing thickness . . . . . . . . . . . . . . .
Connecting rod half bearing undersizes (internal diameter) . . . . .
Bearing to crankpin clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum permitted wear clearance . . . . . . . . . . . . . . . . . . . . . . . . .
Standard crankshaft thrust washer thickness . . . . . . . . . . . . . . . . .
Thrust washer oversizes (thickness) . . . . . . . . . . . . . . . . . . . . . . . .
Width of main bearing including thrust washers . . . . . . . . . . . . . . .
Width of corresponding crankshaft journal . . . . . . . . . . . . . . . . . . . .
Crankshaft assembly endfloat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum permitted wear endfloat . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum ovality or taper of journals and crankpin after
regrinding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum ovality or taper of journals and crankpin . . . . . . . . . . . .
Maximum tolerance for alignment of crankshaft journals with
crankshaft supported on the two outer journals . . . . . . . . . . . . . . .
Maximum permitted tolerance, in both directions, on crankpin
alignment of each pair of crankpins relative to crankshaft journals
(4--cylinder engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum tolerance for run--out between the outer surfaces of the
crankshaft journals and the crankshaft centreline . . . . . . . . . . . . . .
(1) Crankshafts with 0.004 in. (0.1 mm) undersize journals and crankpins and consequently undersize bearing shells may
be fitted in factory production.
SECTION 10 - - ENGINE - - CHAPTER 1
inch (mm)
Bore 100
balanced with integral counterweights
3.141 to 3.142 (79.791 to 79.810) (
0.01 -- 0.02 -- 0.03 -- 0.04
(0.254 -- 0.508 -- 0.762 -- 1.016)
0.0853 to 0.0857 (2.168 to 2.178)
0.04 -- 0.02 -- 0.03 -- 0.04
(0.254 -- 0.508 -- 0.762 -- 1.016)
0.001 to 0.004 (0.034 to 0.103)
0.007 (0.180)
2.508 to 2.509 (63.725 to 63.744) (
0.01 -- 0.02 -- 0.03 -- 0.04
(0.254 -- 0.508 -- 0.762 -- 1.016)
0.07 to 0.07 (1.805 to 1.815)
0.01 -- 0.02 -- 0.03 -- 0.04
(0.254 -- 0.508 -- 0.762 -- 1.016)
0.001 to 0.003 (0.033 to 0.087)
0.007 (0.180)
0.132 to 0.135 (3.378 to 3.429)
0.05 -- 0.01 -- 0.015 -- 0.02
(0.127 -- 0.254 -- 0.381 -- 0.508)
1.250 to 1.256 (31.766 to 31.918)
1.259 to 1.263 (32.000 to 32.100)
0.003 to 0.013 (0.082 to 0.334)
0.01 (0.40)
0.0004 (0.01)
0.002 (0.05)
0.004 (0.10)
0.01 (0.25)
± 0.004 (± 0.10)
15
Bore 104
1
)
1
)
(continued)
Advertisement
