Intrepid V6-3.2L VIN J (1998)
Crankshaft Main Bearing: Service and Repair
Removal and Installation
Figure 87-Main Bearing Cap Identification
Bearing caps are not interchangeable and should be marked at removal to insure correct assembly. Upper and lower bearing halves are NOT
interchangeable. Lower main bearing halves of 1, 2, 3 and 4 are interchangeable. Upper main bearing halves of 1, 2, 3, and 4 are interchangeable.
CRANKSHAFT MAIN JOURNALS
The crankshaft journals should be checked for excessive wear, taper and scoring. Limits of taper or out-of-round on any crankshaft journals should be
held to 0.025 mm (0.001 inch). Journal grinding should not exceed 0.305 mm (0.012 inch) under the standard journal diameter. DO NOT grind thrust
faces of Number 2 main bearing. DO NOT nick crank pin or bearing fillets. After grinding, remove rough edges from crankshaft oil holes and clean
out all passages.
CAUTION: With a forged steel crankshaft it is important that the final paper or cloth polish after any journal regrind be in the same direction as
normal rotation in the engine.
Figure 88-main Bearing Identification
The crankshaft thrust is controlled with thrust washers located at the upper No. 2 main bearing bulk head. All bearing cap bolts removed during
service procedures are to be cleaned and oiled before installation. Bearing shells are available in standard and the following undersize: 0.025 mm
(0.001 inch) and 0.254 mm (0.010 inch). Never install an undersize bearing that will reduce clearance below specifications.
REMOVAL
1. Remove oil pan, pick-up tube, and windage tray. Identify bearing caps before removal.
