Viper V10-488 80L (1992) Engine Cylinder Block Crankshaft Main Bearing Removal and Installation
-
When checking #4 main brg shim #3 & 5 main brg
-
When checking #5 main brg shim #4 & #6 main brg
-
When checking #6 main brg shim #5 main brg
REMOVE ALL SHIMS BEFORE REASSEMBLING ENGINE
ALTERNATIVE METHOD - With the weight of the crankshaft being supported by a jack under the counterweight adjacent to the bearing being
checked.
3. Place a piece of Plastigage across the entire width of the bearing shell in the cap approximately 6.35 mm (1/4 inch) off center and away from the
oil holes. (In addition, suspect areas can be checked by placing the Plastigage in the suspect area). Torque the bearing cap bolts of the bearing
being checked to the proper specifications.
4. Remove the bearing cap and compare the width of the flattened Plastigage with the metric scale provided on the package. Locate the band closest
to the same width. This band shows the amount of clearance in thousandths of a millimeter. Differences in readings between the ends indicate the
amount of taper present. Record all readings taken. Refer to Engine Specifications. Plastigage generally is accompanied by two scales. One scale is
in inches, the other is a metric scale.
5. Plastigage is available in a variety of clearance ranges. The 0.025-0.076 mm (.001-.003 inch) is usually the most appropriate for checking engine
bearing proper specifications.