goofballdeluxe

The only "bad years" are the years you didn't own a 993

Bill Verburg

This is the only one related to the heads that I have

levtron

LOL

JPP

Hi Bill ... ok, of course, I couldn't find a paper copy .. but just for you I called the shop and asked about it and they said it was a failure due to defective cylinder head studs .. I guess they would work loose out of the block .. and that caused leaking and eventually failure. The referred me to this:

Bill Verburg

Yes, I have that one but can't find anything about weeping headgaskets on a 993
993 issues I have TSBs for
engine mounts
cam timing
cam bolts
oil return tube
head torque(posted above)
oil fill bellows
oil filter
oil drain plug
fan belt
heat pipe
alt pulley
cam housing
crankcases
vacuum lines
wiring harness
valve lifters
knock sensors
piston spray

JPP

Yeah, I think were getting hung up on semantics here. The results of these studs allowing the head to come loose cause the head gasket to fail and oil to leak out at the cylinder base .. it's not a 'weeping' problem, it's a leaking problem ..
Anyway, TSB out in November '96 so this would be MY '97 and on which are the physical cars I've seen ..

JPP

^^^ I should edit that and say it probably could be ANY engine on any year that used those Crankcase studs ...

The Brewmeister

What does the TSB on the oil drain plug say? I'm having an issue with leakage right now that others here on Rennlist believe may be the plug.

Academictech

like a good french wine...there are no bad years for 993's.....only thing bad about a 993 is it's a**

Mike J

Check out the TSB's on pcarworkshop - http://www.pcarworkshop.com/index.ph...C_Parts_Guides

Cheers,

Mike

SC2993

Interesting post, the VIN for my car is specifcally mentioned in the TSB. My VIN ends in 0225 and was manufactured on 1/27/1994 so the dates mentioned are spot on. In the preceding years I have since replaced the suspension components because of age.

The Brewmeister

Thanks Mike! Your site is an outstanding resource.