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are my valves shaggged?

General Tech Talk

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Posts: 3523
Joined: Fri Aug 27, 2004 12:27 am
Location: Fairfield,Sydney

are my valves shaggged?

Post by pongo »

Its a Diesel and was doing my valve stem seals( have motor out anyway) and put 90psi of air into cylinders to hold valves, and noticed a heap of air escaping past the exhaust valve on 1 cylinder,

Then i tried another and that one was leaking but not as bad.

Im figuring the blown manifold gasket has done more damage than hoped for.
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Posts: 5256
Joined: Fri Jun 16, 2006 6:49 pm
Location: Melbourne

Re: are my valves shaggged?

Post by Struth »

Sounds like they could be burnt unfortunately, but try putting the springs back on the valves and see if air still gets through with a hundred or so pounds of spring holding the valve closed.
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Posts: 3523
Joined: Fri Aug 27, 2004 12:27 am
Location: Fairfield,Sydney

Re: are my valves shaggged?

Post by pongo »

Struth wrote:Sounds like they could be burnt unfortunately, but try putting the springs back on the valves and see if air still gets through with a hundred or so pounds of spring holding the valve closed.

that was with the valve springs in place. :bad-words: :bad-words: :bad-words: :bad-words:

that head was xrayed and had a slight crack starting to appear. looks like ill have to send off my spare one for testing,etc

thanks
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