ShadowsPapa
Well-Known Member
- First Name
- Bill
- Joined
- Oct 12, 2019
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- 247
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- Location
- Runnells, Iowa
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- '25 JTMX, '23 JLU 4xe, '82 SX4, '73 Javelin
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- Retired auto mechanic, frmr gov't ntwrk security admin
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depends on a lot of factors - interference design, and so on.Sometime piston and rings can still be good after lightly hits the valve, depending on compression ratio of course.
But if a piston smacked a valve - it's got serious issues to even allow that to happen.
Something would have to stick that valve open farther than normal, and then it has to be an interference type design for the valve to hit.
many engines can lose a timing chain and not bend a valve because there are built-in clearances or due to other design considerations.
If a valve hit a piston - it's got problems beyond a bent valve - like the problem that could allow that to begin with. I'd never just fix the valve and move on. Find the cause.
(Iv'e built my share of engines since the early 70s - no, not a Pentastar)
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