Trying to figure out how to fix a leak. Pics inside and help appreciated
 

Hi guys, I have a pretty bad leak that's developed. I'd like to figure out the correct way to fix it. I'm wondering how involved it is to fix it though since it's on the back of the timing covers. Will the engine need to be dropped to fix/replace whatever is in there?

http://i7.photobucket.com/albums/y299/rollbmw/leak.jpg

http://i7.photobucket.com/albums/y29...w/photo2-5.jpg

There is a triangular gasket and an "O" ring..not in the page you have on the page shown.

They will leak as shown in the picture.

Go to this link:

http://www.porsche.com/all/media/pdf/originalparts/usa/911_USA_84_86_KATALOG.pdf

You need 930-105-197-03 gasket and a 999-706-468-40 "O" ring. Best plan on doing both sides too. Good time to set the cam timing and timing chest. You need some additional gaskets.

I just finished this repair last week on my 930. Both gaskets were leaking and oil was dripping on the exhaust.

It was done with the engine still in the car.....just jack it up and lower the back of the engine.

It's a fairly involved repair as the timing chains, tensioners, etc. have to be removed to replace the gaskets. Cams need to be retimed as well.

I replaced some other seals while I was in there as well. So far not a drop has leaked and no more smoking engine!

Here's a couple of pics:

http://forums.pelicanparts.com/uploa...1309736446.jpg


http://forums.pelicanparts.com/uploa...1309736473.jpg

i believe it's the tensioner pin that's being discussed. the best way, and not the easiest repair is to replace the chain housing. the pin gets loose and wallows out the hole it was pressed into. the tensioner secures to this pin and it wobbles around too. lots of used housings around. there are other ways , like machining a custom pin and boring the housing, but that takes more time and it has to come off anyway.

John

Is this the back of the pin circled in red?

http://forums.pelicanparts.com/uploa...1309741033.jpg

the back of the pin, yes. too late for epoxy.

But because you can see the front and back of the pin... Is it possible to press it out and press it back in with epoxy without dissembling it further?

If it was mine I'd give it a go. :)

Thanks for the info guys. It looks like I'll have a project coming up in the next few weeks.

Kirk thanks for the great pics! I'm sure it'll help when i'm ready.