TM 5-3805-281-24-2
Crankshaft, Main Bearings, and Flywheel
CHECK MAIN BEARING OIL CLEARANCE
The use of PLASTIGAGE will determine
bearing-to-journal wear (oil clearance) but will not
determine condition of the bearing or journal surfaces.
1. Place a strip of PLASTIGAGE in the center of the
main bearing cap (with insert) about three-fourths of
the width of the bearing.
2. Use oil (SAE30) on PLASTIGAGE to prevent
smearing.
3. Install cap and tighten to 230 Nm (170 lb-ft).
Checking Main Bearing Oil Clearance
4. Remove cap and compare width of PLASTIGAGE
with scale provided on wrapper to determine oil
clearance.
Main Bearing-to-Journal--Specification
Clearance ...................................................................... 0.030--0.107 mm
(0.0012--0.0042 in.)
PLASTIGAGE is a trademark of DANA Corp.
RG,RG34710,1169
1923OCT971/1