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UMMM.... What's this
Posted: October 8th, 2008, 11:16 am
by hagendog
Sold this motor and the guy sent me these pics. I never took it apart but I see what he's saying. What caused this and is this fixable or do I need to get him a left case? Let me know

Posted: October 8th, 2008, 11:41 am
by TYSTYX
A casting flaw maybe ????????
Posted: October 8th, 2008, 11:54 am
by lewisclan
is that a motor Glen worked on ? Id call him up and talk to him and see if its anything to worry about then ask him to repsond to this posting so the guy who bought it can read about it .......
but that is weird I have never seen that before.
I cant think of anyone with more experince with these motors than Glen
Posted: October 8th, 2008, 12:05 pm
by hagendog
Casting flaw..... I had seen this before on my 88 motor but wasn't as bad as this one. I'll let some more people give input and then go from there, Thanks guys!
Posted: October 8th, 2008, 12:57 pm
by dannygraves
definitly a casting flaw.
Posted: October 8th, 2008, 2:41 pm
by pstoffers
dannygraves wrote:definitly a casting flaw.
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Posted: October 8th, 2008, 5:42 pm
by iggys-amsoil
Probably is a casting flaw.
I would take a pencel grinder/ demell with a ball end file, take some off. The radius left will help.
Posted: October 9th, 2008, 2:00 pm
by JBaze
I have seen that on every 500 engine I have ever had down. I just atributed it to a casting flaw.
Posted: October 11th, 2008, 6:00 pm
by Roostius_Maximus
That's a flaw, I had the same nasty looking one in my 88 case, and an even more questionable looking one behind the crank gear, smoothed them out and ran it for a season, nothing changed.
Even if it was a crack, the only way it can be there is if something has moved, I doubt the case is standing proud, or seperated from the other case at the center gasket.