Chrysler Engine >> CAM BEARING ALTERNATIVE CHRYSLER 3.3L & 3.8L

Chrysler Engine >> CAM BEARING ALTERNATIVE CHRYSLER 3.3L & 3.8L

Cam Bearing Alternative For
1991-2001 Chrysler 3.3 & 3.8L VIN G, J, T, U, R & L Engines

The AERA Technical Committee offers the following information regarding a cam-bearing alternative for 1991-2001 Chrysler 3.3 & 3.8L VIN G, J, T, U, R & L engines. This alternative cam bearing set may be used anytime they are being replaced in an engine.

Previously, AERA published Technical Bulletin TB-1254 concerning a lack of oil supply to either side rocker shaft for these engines. The root cause of that condition was either an out of place cam bearing or a restriction in the oil supply around the camshaft. To make a transfer through the lower portion of the block to the upper portion of the block engine oil was routed through a groove in the cam. On occasion that transfer of oil was impaired and an insufficient amount of oil reached the rocker shafts.

AERA is aware of at least two engine parts suppliers who offer camshaft bearings for the intermediate locations with a groove machined around the outside of the bearing. This groove will help eliminate alignment concerns technicians may have while installing the bearings at those locations. This additional groove assures uninterrupted oil supply to the rocker shaft assemblies around the backside of the bearing. This revised bearing design has been performing well in the field without subsequent rocker shaft concerns. Consult your engine parts supplier for availability of this revised bearing set.

The AERA Technical Committee

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