Lifter Issue?

[Black Six]

1987 Buick T 3.8 Turbo Stock

Having some noise from the engine. Pulled the valve covers off. Started the engine and noticed oil leaching out of the pushrods, not squirting out. Lifter failure?

 

[hiboom]

When you revved it up did the oil flow increase


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[Black Six]

It seems to stay the same. Just leaching out of the holes

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[hiboom]

If every pushrods has the same amount coming out of them I don't think every lifter would be causing it does the noise decrease when you rev it do you have a oil pressure gauge does your oil pressure increase with rpm what is hot idle oil pressure what weight oil you running does the noise ever go away I would suspect a clearance problem with oil pump not getting the oil up to the top end the oiling systems were not great to start with


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[Black Six]

Found metal powder in the oil. Oh boy

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[hiboom]

Flat cam


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[Black Six]

Pulling intake off as we speak. Ugh just rebuilt it

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[hiboom]

I had it happen several times not only to our cars had it happen on a couple late60's muscle cars getting harder and harder to maintain older muscle cars with flat tapet cams


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[Jay J]

Lots of threads on this. bad cam blanks, bad oil, bad lifters--it's a damn shame.

 

[Black Six]

I used Lucas mineral base break in oil. Its a suspect for sure ugh.



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[Black Six]

Why does this car have this issue?

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[earlbrown]

Depends. There's many things that can cause a flat cam on a fresh rebuild.

What was your original cause of failure that caused the rebuild in the first place? And how far down did you go with the engine before putting it back together?

 

[Jay J]

Do a search on cam failures. You will find this is a common problem, due to a lot of different causes.

 

[TLIMITED]

Depends. There's many things that can cause a flat cam on a fresh rebuild.

What was your original cause of failure that caused the rebuild in the first place? And how far down did you go with the engine before putting it back together?

X2

 

[Black Six]

Complete tear down and rebuild. Engine was someones unfinished projecr

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[earlbrown]

....and what was the original reason the engine needed to be torn down and rebuilt?

 

[Black Six]

I believe the trans went. He pulled the whole thing with intentions to rebuild it all.

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[87GN_70GS]

Oil just oozing out at idle is normal. Before you tore it down, were all the pushrods spinning?

 

[Black Six]

Even revving nothing. The rockers were all loose too.

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