15 - Engine
12 - Crankshaft
00 - General
15 - 53 9813/9750-1 15 - 53
Operation
Refer to Camshaft-Operation (PIL 15-15).
Lubrication
Oil is fed from the main gallery via five drillings, one
to each of the main bearings. A groove around the
diameter of the upper main bearing shell allows oil
transfer to cross drillings in the crankshaft to feed
each of the big end bearings. Crankshaft gear is
'splash' lubricated. Front and rear crankshaft oil seals
prevent oil leakage from, and dirt ingress to, the
engine.
Figure 140.
1 Main gallery 2 Drillings (x5)
3 Main bearings 4 Big end bearings
5 Cross drillings 6 Crankshaft gear
7 Crankshaft oil seal 8 Crankshaft oil seal
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