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Author: Subject:  sticky valve
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posted on February 9th, 2009 at 07:07 PM
sticky valve


Okay - am still trying to fix the missing in the c/buggy. Started off by fixing all the exhaust leaks and that was done and still not running properly, popping and backfiring - so thought would check the valves and progress from there.

BUT

I checked No 1 inlet and that was fine, then found that No 1 exhaust valve is sticking and even with the adjuster screw removed I cannot get any blade through. I know that the exhaust valves tends to wear quicker than the inlets and run hotter etc but does anyone have any trick to unstick the valve.

I suspect that I will have to pull the motor, as it is fairly tight to take the head off. But thought someone might have a handy hint.

I was hoping to have it fixed for Dubs this weekend, but not likely if I have to pull the engine.

Any suggestions..

Cheers

Peter




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posted on February 9th, 2009 at 07:17 PM



If you have no clearance at all or adjustment I would guess that you have a receded valve seat or a valve stem stretching which shortly after becomes a dropped valve head causing untold damage.i suggest you pull the motor and find out which it is before demolition. Cheers Les
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posted on February 9th, 2009 at 07:35 PM



Quote:

I know that the exhaust valves tends to wear quicker than the inlets and run hotter etc but does anyone have any trick to unstick the valve.



Pull the engine to remove the cyclinder head no other way




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posted on February 9th, 2009 at 07:50 PM



Not stuck valve.
Remove the head, most likely valve seat receeding.




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posted on February 9th, 2009 at 09:09 PM



What are the symptoms of a sticking valve?

Thanks

Steve




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