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Old 11-29-2013, 06:01 PM   #1
WWC
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Default Timing Belt Snaps-Valve Contact-Are pistons still good? (Pics inside)

This the the passenger side head, so cylinders 1 & 3 as far as I recall. USDM EJ205. This is where the valves tapped the two pistons, exhaust side. I know some motors can accept small nicks without a negative reaction, but not sure about the ej205. I cannot budget a rebuild or replacement, but I do have everything I need to refresh the heads. Just curious if these pistons are going to affect compression negatively or not.

Off the top of my head, I'd say they'll be fine, because it's not much of a difference at all. But again, I figure it's best to ask.




Thanks in advance
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Old 11-30-2013, 06:59 AM   #2
003rex
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I've done it many times with a detroit diesel, that is.. unless the valves have made way father than the combustion chamber.
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Old 11-30-2013, 11:50 AM   #3
mod maniac
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They are fine run them.
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Old 11-30-2013, 11:59 AM   #4
69subaru360
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They are fine. If you are really anal, smooth down the sharp edges where it hit to prevent a hot spot and detonation.
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Old 11-30-2013, 12:19 PM   #5
Hondaslayer
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For a basically stock car I would run them.

If this was a built engine, high boost etc..... I would replace them.
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Old 11-30-2013, 01:47 PM   #6
WWC
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Awesome, that's what I was thinking too. This car is completely stock and will stay that way as long as I own it.

Thanks again.
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Old 12-02-2013, 06:08 PM   #7
aperson
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You're likely fine, got any pics?
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Old 12-02-2013, 06:56 PM   #8
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They were hosted, idk what happened.
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Old 12-02-2013, 07:45 PM   #9
Uncle Scotty
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dont the intake valves hit the exhaust valves??
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Old 12-02-2013, 07:54 PM   #10
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They were hosted, idk what happened.
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Old 12-02-2013, 07:55 PM   #11
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Valves didn't hit. Dropped the heads off at the machine shop today. Waiting on a list of parts.
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Old 12-03-2013, 09:55 AM   #12
Vlad
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How many miles did the belt have, when it snapped?
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Old 12-03-2013, 01:01 PM   #13
WWC
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Around 500 or so. The cooling fans plowed through the timing covers and hit the belt.
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