Research 911 Technical Service Bulletins?

[rojobean]

Team -

A potential buyer says his "mechanic," has a "friend" who says the 1988 911 has a TSB which says there is a potential weak spot in the middle right upper engine case, near where the oil return line goes in.

The spot is an indent about 1/4" x 3/4" May be a design artifact or design error?

The case is not leaking, nor has ever leaked, but my potential buyer wants some assurance this is not an issue.


Has anyone heard of such a problem?

Is there a public site where I can research TSBs?


Thanks!

[Wayne 962]

You can point your buyer to this thread. I've never heard of a weakness there, and I've written the book on the subject! The late-model cases are aluminum, and are pretty-much bulletproof. They use the same style cases for the 500-600HP GT2s. I have a CD of all bulletins from 1984-1994, although it's not really searchable (just a buttload of PDF files).

If your buyer is worried, he should send the car to Callas Rennsport in Torrance for a full prepurchase inspection.

-Wayne

[Tigerrat]

I'm aware of a spot just behind the oil cooler mount if you will. Mine has a dab of epoxy applied, maybe at the factory as this engine has not had any major work done on it. Like you, no leak. Only reference I found was pg 130-5 of the Bentley manual. If anyone has a TSB, I'd love to see it out of curiosity as I don't think its a problem. I scoured these boards and found no mention of it. Ken

[Wayne 962]

It was common for the factory to use epoxy to seal the spots where there are metal bearing posts attached (like in the timing chain housings). Also at the bottom of the case where the plugs are (they plug the holes that were drilled in order to create the oil passageways). JB Weld works very well for sealing these, and is very similar in color to the factory original epoxy.

-Wayne

[911quest]

TSB info Group 1 #8911 Sealing cast-on oil pipe

[dshepp806]

Originally Posted by 911quest

TSB info Group 1 #8911 Sealing cast-on oil pipe

Well,..there you go,..via TSB (NOT normal production methodology) !!!

Best,

Doyle

[javadog]

That TSB specified to add some epoxy to an area just aft of the oil cooler, in case of oil leaks (casting porosity?) in the area of an internal oil pipe cast into the block. Two spots, maybe 1/4" by 1/2" each. The bulletin states that production engines from 3/89 included this epoxy.

JR

[rojobean]

Thanks Wayne and all for the input!
The Pelican board is the bomb!
I had the same query out to three other boards with no replies.