Caravan AWD V6-201 3.3L (1991)
Crankshaft Main Bearing: Service and Repair
Inspection
Main Journal Inspection
MAIN BEARINGS
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, 3 and 4 are interchangeable. Upper main bearing halves of 1, 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 the nodular cast iron crankshafts used is important that the final paper or cloth polish after any journal regrind be in the same
direction as normal rotation in the engine.
