9-22 CRANKSHAFT/CRANKCASE
Crankshaft and Connecting Rods
•
Check the crankshaft main journals and crankpins for
wear and taper.
Crankshaft Main Journal Diameter [A]
Standard: 41.976 ∼ 42.000 mm (1.6526 ∼ 1.6535 in.)
Crankshaft Crankpin Diameter [B]
Standard: 36.976 ∼ 37.000 mm (1.4557 ∼ 1.4567 in.)
Crankshaft Out of Round and Taper
Service Lim it: 0.02 mm (0. 0008 in.)
If the crankshaft main journals are not within specification,
the crankshaft may be re-ground and undersize bearing
inserts installed.
Undersize Crankshaft Main Bearing Inserts
0.25 mm (0.0 098 in.) Undersize
•
The final finishing dimensions should be as shown in the
table.
Finishing Dimensional Specifications
[A]
41.726 ∼ 41.750 mm (1.6428 ∼ 1.6437 in.)
[B]
36.726 ∼ 36.750 mm (1.4459 ∼ 1.4468 in.)
[C] R 2.5 mm (0.0984 in.)
[D]
R 2.1 mm (0.0827 in.)
•
Measure the crankshaft runout at #3 main journal.
If the measurement exceeds the service limit, replace the
crankshaft.
Crankshaft #3 Main Journal Runout
Service Limi t: 0.06 mm (0.0024 in.)
•
Visually inspect the crankshaft gear teeth [A].
•
Do the timing gear inspection procedure (see Timing Gear
Inspection).
If the crankshaft gear teeth are damaged or worn, replace
the crankshaft.
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