Intake valve contacts piston when setting valve lash - Page 2 - Chevelle Tech
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post #16 of 18 (permalink) Old Feb 4th, 07, 11:16 PM
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Re: Intake valve contacts piston when setting valve lash

Originally Posted by von View Post
Are you sure the valves aren't contacting the block? Please be aware that 396 blocks with 2.19 intake valves require the cyl bore to be notched at the top for valve clearance. If it is an L-78 4 bolt main block the notches will already be there. If not they probably won't be.
#1. That would be ugly! Lets hope its not the notches. Frankly I'd be surprised if that particular snafu got out of the machine shop undetected. Assuming that they adjusted the valves as a function of building the engine they'd have known right away.

Beyond which it sounds like you are putting the same parts back on the engine after they have been reconditioned, correct?

#2. Rather than dragging the engine back to the machine shop OR trying to force them to come to you why not just remove the front cover and fix the problem yourself. Its no big deal. We'll walk you thru the correction. We've done it many, many times for others. The worst it'll cost you is a front cover gasket set.

The other suggestion I would make would be for you to loosen ALL of your rocker arms such that NO valves open until you get the cam set up correctly. After you get the cam phased correctly with the crank then readjust your valves.
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post #17 of 18 (permalink) Old Feb 5th, 07, 4:31 AM
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Chris White
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Re: Intake valve contacts piston when setting valve lash

just pull that timing cover and see how the cam is installed.

Chris White
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post #18 of 18 (permalink) Old Feb 7th, 07, 9:13 PM
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Mr Bill
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Re: Intake valve contacts piston when setting valve lash

Just curious how you made out with this ?

Bill Koustenis
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Waldorf Md

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