Connecting Rod Bolts

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The connecting rod bearing cap bolts must be examined before reuse. If the threads are necked down due to stretching, the bolt(s) must be replaced. See Fig 1.

NOTE: Connecting rod bolts are retained in the rod cap with a light press fit. If bolts are to be removed, use a hammer and punch to drive bolts from connecting rod cap using care not to damage fractured cap surface.

Examine connecting rod bolt for stretching. Stretching can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale the bolt should be replaced.
Before installing the bolts, lubricate the threads with engine oil.
Install bolts finger tight. Then alternately torque each nut to assemble the cap properly.
Tighten the nuts to specification. (Refer to ENGINE - SPECIFICATIONS)

Fig 1: Checking Cylinder Head Bolts for Stretching (Necking)

Courtesy of DAIMLERCHRYSLER CORP.

1 - STRETCHED BOLT

2 - THREADS ARE NOT STRAIGHT ON LINE

3 - THREADS ARE STRAIGHT ON LINE

4 - UNSTRETCHED BOLT