Connecting Rod and Bearing Fitting

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 (1) inserted into the machined grooves in the rods and caps. 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 0.0006 in.(0.015 mm). Bearings are available in standard, 0.001 in. (0.025 mm), and 0.010 in. (0.254 mm) 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.

For measuring main bearing clearance and connecting rod bearing clearance, use plastigage for bearing clearance specifications. Measuring Bearing Clearance Using Plastigage.

CONNECTING ROD BOLTS

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





1. Examine connecting rod bolts for stretching. Stretching can be checked by holding a scale or straight edge (2) against the threads. If all the threads do not contact the scale (1) the bolt must be replaced.
2. Tighten the connecting rod bolts to specifications.