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Crankshaft Bearing Play, Check (Determine
Crankshaft Beating Play with Plastigage)
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Inspect
Bearing play – crankshaft bearing cap removed.
Caution
Clean crankshaft journal and crankshaft bearing shell and
lubricate slightly so that thread does not tear when bearing cap is
removed. Do not turn crankshaft.
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Measure
With "Plastigage" (deformable plastic thread).
Cut thread to width of bearing and place across crankshaft
bearing journal and bearing shell (arrow). Fit crankshaft bearing
shell with torque – tightening torque 25 Nm / 18 lbf. ft. +
50°.
Note: The bolts can
be reused for checking crankshaft bearing clearance.
 Remove
Remove crankshaft bearing cap.
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Inspect
Compare width of squashed plastic thread (arrow) with measuring
scale.
"Plastigage" is available for various measuring ranges.
Permitted crankshaft bearing play: 0.020 to 0.058 mm.
Note: When reading
the value, do not confuse millimetres with inches on the measuring
scale.
Torque/angle method
Install crankshaft bearing caps with new bolts at cylinder block
– 25 Nm / 18 lbf. ft. + 50°.
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