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

Engine problem?

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Old May 6, 2008 | 09:39 PM
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Default Engine problem?

I was headin out to the beach the other day and the engine started acting wierd.

L83 Crossfire

There is a ticking from what sounds like under the left side valve cover. The exhaust started sounding like I had a high profile cam. And some power was gone. The problem has been coming and going for 2 or 3 days now. The oil is good, hasen't overheated or anything.

I was thinking that possibly one of my injectors wasn't fireing right. But they are both flowing good. Could it be a rocker arm? Spring? Sparkplus not fireing right? Any help would be awesome
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Old May 7, 2008 | 10:35 AM
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I have an LT1 and when my car did that right before I broke a valve spring. I mean mine did EXACTLY that.
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Old May 7, 2008 | 11:35 AM
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If you think it is coming from under a valve cover, pull it and have a look.
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Old May 7, 2008 | 11:48 AM
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It could be a lifter that is not holding pressure giving your engine too much valve lash and costing you lift. Pull the cover and see if there is excess clearance and go from there.
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Old May 7, 2008 | 07:58 PM
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STOP driving it before a valve drops into the cylinder and destroys everthing.
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Old May 7, 2008 | 10:01 PM
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have someone take a peek at it and see what they can find.

Id bet money you have a cam going flat. 84 right?
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Old May 7, 2008 | 11:08 PM
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That happened on my 85 and it was a rocker arm stud pulling out of the head.
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Old May 7, 2008 | 11:51 PM
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Originally Posted by TheAngelOfDeath
I have an LT1 and when my car did that right before I broke a valve spring. I mean mine did EXACTLY that.
Thanks everyone. I will pull it sometime this weekend and take a peek .

Anyone know the proper clearences? Should I just check it vs. the other side?
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