Connecting Rod Bearing

STANDARD PROCEDURE - CONNECTING RODS AND BEARINGS

CONNECTING ROD BEARINGS





The bearing caps are not interchangeable and should be marked at removal to insure correct assembly.

The bearing shells must be installed with the tangs (8) inserted into the machined grooves in the rods and caps (9). Install cap with the tangs on the same side as the rod.

Fit all rods on one bank until complete.

Limits of taper or out-of-round on any crankshaft journals should be held to 0.005 mm (0.0001 in.). Bearings are available in standard, 0.025 mm (0.001 in.), and 0.254 mm (0.010 in.) undersizes. Install the bearings in pairs. Do not use a new bearing half with an old bearing half. Do not file the rods or bearing caps.





1. For measuring main bearing clearance and connecting rod bearing clearance use plastigage.

NOTE: The rod bearing bolts should be examined before reuse. If the threads are necked down the bolts must be replaced.

CONNECTING ROD SIDE CLEARANCE





1. Mount a dial indicator to a stationary point on engine. Locate probe perpendicular to and resting against the connecting rod cap being checked. Move connecting rod all the way to rear of its travel. Zero the dial indicator. Move connecting rod forward to limit of travel and read the dial indicator. Compare measurement to specification listed in engine specifications Repeat procedure for each connecting rod. Turn crankshaft for connecting rod accessibility.