C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Oil cap ?

Old Dec 30, 2009 | 07:13 PM
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Default Oil cap ?

My LT1 cap can be pulled up about a 1/4", is this normal or not?
The FSM says nothing, so I am thinking the cap is bad or is this a feature that was left out, I have found a couple of these.
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Old Dec 30, 2009 | 08:30 PM
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It doesn't do that on my 94, but they may have different valve covers/cap.
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Old Dec 31, 2009 | 04:46 AM
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sounds to me like the top part is separating off from the bottom part. assuming you have the standard GM "ratcheting" type of oil cap to prevent over-tightening. could be the molded-in retainer clips of the top-half are missing or bent.

mine's a '91. the top half completely separated from the bottom half.

I wouldn't expect something like this to be in the FSM. it would go something like:
1. remove cap.
2. replace cap.
3. close hood.
4. have a beer.

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Old Dec 31, 2009 | 10:40 AM
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i would definatly replce the oil cap. they are about $13 from the dealer.
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