15 - Engine
12 - Crankshaft
00 - General
15 - 77 9813/6900-6 15 - 77
Check (Condition)
1. Check the main bearing surfaces for damage and
excessive wear.
Figure 288.
A Main bearing shells
2. Measure the crankshaft diameters to confirm
they are within service limits, refer to Technical
Data (PIL 15-12).
Figure 289.
B Crankshaft
3. Check that the oil-way cross drillings in the
crankshaft are clear and free from debris.
Blocked or restricted oil-ways will cause oil
starvation at the big end bearings.
4. Check that the piston cooling J-jets are clear. If
the J-jets cannot be cleared remove the fixing
screws. Remove theJ-jets and discard them.
5. Install new J-jets.
Figure 290.
C J-jets
D Fixing screws
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