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replacing valves

  • Thread starter Thread starter catbed
  • Start date Start date
C

catbed

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it turned out that my stuck valve was bent. guess that knocking wasnt combustion. anyways, when i get a new valve, do i have to replace the valve seat too?

im gonna clean the shafts of the other valves so they dont get stuck and bent too.
 
catbed said:
it turned out that my stuck valve was bent. guess that knocking wasnt combustion. anyways, when i get a new valve, do i have to replace the valve seat too?

im gonna clean the shafts of the other valves so they dont get stuck and bent too.
Click to expand...
You might as well replace all the seals and clean the whole thing, maybe even do new piston rings while you're in there, and make it worth your time. Chef has a great pictorial/tutorial on this very subject, if you do a search on it.
 
You don't replace seats but machine them. A little test I did was after I put the valves in with a light lapping pour gas on the combustion side of the effected valve area and see if fuel leaks through.

Make sure your cam chain tensioner is good, This might have caused the bent valve by jumping a tooth on the timing or a slack in the chain with these automatic cam chain tensioners create on a quick decal at high speeds.

Click here
 
Be thankful the valve didn't break.Depending on milage ? Just replace the valve, lap the valve seat to the new valve, replace the stem seals. If it has a lot of miles just send it out & have the valves redone
 
as you're there, you might want to check the springs as well. worth replacing for a peace of mind.
 
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