Ciera V6-231 3.8L (1986)
A needle bearing and spring assembly, Part Number 25532588, is available through GMSPO to address the above conditions. The needle bearing will
reduce wear to the front cover thrust surfaces and the spring has a higher load rating which will reduce camshaft chucking.
NOTICE:
A higher load rate spring and bearing assembly should not be used with the early design Phenolic plastic button. First and second designs
are illustrated on the reverse side.
When servicing these engines with the front cover removed, for any other reason, install the new spring and bearing assembly if wear to the button is
noted. The front cover does not need to be replaced unless the thrust surface is out of flatness by more than 1/16 of an inch.
