Inspection Of The Crankshaft Bushing And Crankshaft Journal; Inspection Of Main And Big End Bearings - Volvo Penta D1-13 Workshop Manual

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47701798 05-2013 © AB VOLVO PENTA
Inspection of the crankshaft bushing and
crankshaft journal
Check the bearing clearance between the crankshaft
journal and the crankshaft bushing. Use both internal
and external micrometers.
1 Measure the inner diameter of the bushing at points
1 and 2. Measure in two directions (A and B) at
each point.
2 Measure the bearing journal outer diameter and
calculate the bearing play (difference between pre-
vious measurement and max. diameter of the bear-
ing journal).
For max. bearing play, refer to Group 21:
Engine page 14.
Change the bush if the clearance exceeds the per-
missible value.

Inspection of main and big end bearings

Check the main and big end bearing shells, and the
front main bearing bushing. Change worn bearing
shells, or any with damaged bearing surfaces.
21-6 Crank Mechanism
91