More disassembly fun(EM leak)

[Peter Berrevoets]

Not going to like the answer;

The only way to get close to some of the nuts and studs is by taking off the
Intake Manifold (IM).

This requires removal of the (I'm assuming turbo engine?) intake down-pipe,
air box, throttle cable and associated brackets, some minor wiring
connections and finally getting lucky enough to have the allen head IM bolts
actually come undone without stripping due to rust. That is the allen head
will (I had two) go round internally. Once that is off and out of the way,
you'll have a birds-eye view of the EM.

Any cracks are generally visible on top in the "crotches" of the manifold. I
had mine welded and so far it's been fine for a year. The qlist does not
recommend welding for longevity but many have done it and are happy. It
seems to be a coin toss as far as how long it will last if welded. The
consensus seems to indicate that the passenger side engine mount and the
first exhaust hangar in front of the cat are primary causes of EM cracking
should either one or both fail.

If your handy and not in a rush it can all be done in an afternoon with
minimal (but some) loss of finger flesh.

Beer helps.

HTH

Peter
1990 200TQ

> >-----Original Message-----
> >From: Bill Rowe [mailto:browe58 at netzero.net]
> >Sent: Thursday, October 05, 2000 12:56 PM
> >To: Peter Berrevoets
> >Subject: RE: More disassembly fun(EM leak)
> >
> >
> >peter,
> >
> >how does one access the exh manifold and check for cracks
> >and missing studs?
> >thanx.
> >
> >bill
> >
> >
> >-----Original Message-----
> >From: quattro-admin at audifans.com
> >[mailto:quattro-admin at audifans.com]On
> >Behalf Of Petero Berrevoets
> >Sent: Thursday, October 05, 2000 11:37 AM
> >To: 'james accordino'; 1 Quattro List (E-mail)
> >Subject: RE: More disassembly fun(EM leak)
> >
> >
> >Had my EM crack repaired last fall, three months ago it was
> >sounding like a
> >truck again so I took of the IM and discovered - all bolts
> >either loose or
> >finger tight! Having feared another crack, this was a relief to me.
> >Re-tightened them all and it's been purring ever since.
> >Fortunately no
> >gasket or other damage. Took the opportunity to clean and
> >paint the IM a
> >gloss black, looks great and feels MUCH faster now ;-)
> >
> >Or maybe it was the fresh air duct I routed to the front grill after
> >removing that little intake trumpet thing.
> >
> >Regards,
> >
> >Peter
> >1990 200TQ - 275,000 KM
> >> >-----Original Message-----
> >> >From: quattro-admin at audifans.com
> >> >[mailto:quattro-admin at audifans.com]On
> >> >Behalf Of james accordino
> >> >Sent: Wednesday, October 04, 2000 8:56 PM
> >> >To: audi list
> >> >Subject: More disassembly fun(EM leak)
> >> >
> >> >
> >> >Sorry bout that.  3 yr. old likes pressing buttons.
> >> >
> >> >Anyway, more disassembly today.  Had an EM leak.
> >> >Started small, but had gotten like a truck lately.
> >> >Did the cyl. head about 10k ago.  EM got new gaskets,
> >> >correct studs, washers, nuts, etc.  Motor mount is
> >> >new, heat shield good, cool air hose in place.
> >> >Fearing the worst anyway.  Turns out that BOTH
> >> >fasteners (studs, nuts, everything including the
> >> >gasket) are gone from cyl. #5.  About 3k after I did
> >> >the head, I had a small exhaust tick.  #1 cylinder
> >> >studs had backed out.  Nuts were fast, but both studs
> >> >were loose in head.  I think I will install all the
> >> >studs with Loctite blue this time.  Never had this
> >> >happen before, except on small block Chevy with
> >> >headers.  I had to safety wire those on.  Anyone else
> >> >have new studs loosen from the head?
> >> >
> >> >Jim Accordino
> >
> >
> >
> >____________NetZero Free Internet Access and Email_________
> >Download Now     http://www.netzero.net/download/index.html
> >Request a CDROM  1-800-333-3633
> >___________________________________________________________
> >