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WTH caused this??

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Old 10-30-2005, 07:24 PM
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badcoupe
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My number 1 cylinder is trashed, blew the HG on number 4. Possibly too rich and washed the cylinders out?
Old 10-30-2005, 07:26 PM
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special tool
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Looks like a sparkplug electrode......
Old 10-30-2005, 07:26 PM
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ehall
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WOW! sorry man. Do you have a broken rod bolt under there?
Old 10-30-2005, 07:30 PM
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Tom M'Guinn

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Well that's not good. Can't imagine fuel wash would make that kind of gouge. Broken ring from detonation maybe?
Old 10-30-2005, 08:00 PM
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Mighty Shilling
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wrist pin perhaps? has there been a prior rebuild?

edit: Upon further investigation, I know I'm wrong... the scrape is in the wrong position... I'm putting my vote on broken ring...
Old 10-30-2005, 08:10 PM
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lart951
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Originally Posted by badcoupe
My number 1 cylinder is trashed, blew the HG on number 4. Possibly too rich and washed the cylinders out?
Hye I have a good short block for $ 900.00 + shipping
Old 10-30-2005, 08:19 PM
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ibkevin
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Ouch. That piston top is pretty clean, are the rest like that?
Old 10-30-2005, 08:41 PM
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pk951
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http://www.928motorsports.com/services/uschrome.html

Check them out no need to throw block out.
Old 10-30-2005, 08:41 PM
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badcoupe
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the pistons are fairly clean engine only about an hour of runtime, I'm figuring a ring as well. I have a NA motor I'm going to use with my perp drilled crank and re-sized rods on the NA pistons.
Old 10-31-2005, 11:29 AM
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Zero10
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Sorry, but it looks like ring-related damage...
So sad to see, I put mine in upside-down, so it really hurts to see.
Old 10-31-2005, 02:35 PM
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Hate to see that. When you get it figured out please post a follow-up so nobody else has this happen.



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