Big End Bearing Clearance, Check
Tools:
856927 Plastigauge
Big-end bearing radial play can be checked with the
aid of 856927 Plastigauge as follows:
1
Wipe off any oil from the big end bearing and big
end journal. Apply a piece of plastigauge the
same length as the width of the bearing along the
big-end journal. Avoid the oil hole.
2 Install the connecting rod and bearing cap
(observe the markings) and tighten the connect-
ing rod bolts.
For tightening torques, refer to Tightening tor-
ques page 9.
NOTICE! Do not rotate the connecting rod or
crankshaft during measurement, as this will
destroy the measurement strip.
3 Remove the big end cap and measure the width
of the compressed plastigauge at the widest
point. Use the scale supplied with the plas-
tigauge.
For max. permissible big-end bearing play, refer to
Group 21: Engine page 14
.
Change the big-end bearing if bearing clearance
exceeds the permissible value.
21-6 Crank Mechanism
92 47701798 05-2013 © AB VOLVO PENTA
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