PowerTech 6105HF - Check Main Bearing-To-Journal Oil Clearance

Crankshaft, Main Bearings, and Flywheel
02
040
18
RG,RG34710,163 –19–12SEP02–1/1
Check Main Bearing-to-Journal Oil Clearance
RG8128 –UN–21MAY98
Checking Oil Clearance
NOTE: The use of PLASTIGAGE

will determine wear
(crankshaft-to-bearing oil clearance) but will not
determine condition of either bearing or journal
surface.
1. Place a strip of PLASTIGAGE

in the center of the
main bearing cap about three-fourths of the width of
the bearing.
2. Use clean SAE 30 engine oil on PLASTIGAGE

to
prevent sticking.
3. Install cap and tighten cap screws to specification.
Specification
Crankshaft Main Bearing Cap
Screws—Final Torque 320 N•m (236 lb-ft).................................................
4. Remove cap and compare width of PLASTIGAGE

with specifications below to determine clearance.
Specification
Crankshaft Main Bearings—Main
Bearing-to-Journal Clearance 0.046—0.122 mm
(0.0018—0.0048 in.)
........................................
Maximum Acceptable Oil
Clearance 0.152 mm (0.0060 in.)...............................................................
PLASTIGAGE is a registered trademark of DANA Corp.
CTM100 (06APR04) 02-040-18 P OWER T ECH 10.5 L & 12.5 L Diesel Engines
040604
PN=214