Damage inside engine case...pics
 

I cracked open my 3.0 case today and found this....the engine was assembled from many donors, so don't know what happened here, but check out what appears to be a hole worn into the aluminum case, revealing what feels like hard black/brown plastic underneath.

Anyone know what that is, what's underneath, if this is a problem?http://forums.pelicanparts.com/uploa...1119700768.jpg

Isn't that the rear oil passage where the pressure relief assy goes into?

I think asphaltgambler is right, but to be sure, take a wider shot and submit it.

They all do it... it's apparently not an issue. Mine was the same, no problem.

Here's a better pic
 

Here's a wider aspect...just to the right of the damage is the thermostat.

thankshttp://forums.pelicanparts.com/uploa...1119956774.jpg

My 930 case has that, and a 964 case I just opened has the exact same thing. Therefore I assumed that was there purposefully as part of the casting/manufacture process.

Brian

I dunno, to me it looks like a plastic or plastic composite sleeve /insert. Mine looks bubbled, about ready to break. It must have a purpose or it wouldn't be there. Maybe some engine 'gurus' could help us. I want to know.

Do a bit of a search... it has come up quite few times with engine rebuild newbies ;)

It looks rough, but it is factory.

what search words / phrase?

Fine, don't believe me... :)

http://forums.pelicanparts.com/showthread.php?s=&threadid=153820&highlight=oil+ho le+case

http://forums.pelicanparts.com/911-engine-rebuilding-forum/154347-up-porsche-standards.html

And the quote from Tyson is "There's nothing wrong with your case. That's totally normal. If you want to, you can epoxy the external portions for oil leak prevention."

Thanks a lot guys. I think I'll leave mine alone, I'd be concerned about having a piece of of epoxy break loose in the case...

john

Hey John

Are you in Sutherland Shire? If so where abouts?

I work in Sydney CBD, live in Mosman...Australia IS the Shire to the rest of the world!

Why is Australia the Shire to the rest of the world??? Enlighten me.

cuz its nowhere near anything else. And thats a good thing.

Except for NZ, I guess that's farther.

Mine dont have that hole.

Guys

Well actually NZ has stolen the Shire thing post Lord of the Rings or is that the Middle Earth?.

Another reason is that:

Aussie = Shire
US = County?
NZ = Borough/County

I'm sure someone will correct me on this

Neven (in the Middle Earth)

Both are awesome. I'm lucky to be here and have business reasons to get to NZ regularly.