More disassembly fun(EM leak)

[The Quattro King]

I had this happen.  Check several thing.  Make sure you are using studs made
aluminum.  Some studs have a really short end that go in the head.  These
are made for iron heads which don't need as many threads.  Do use Loctite as
you said, but use a High Temp, High Strength one.  I believe it is red.
BTW, were your nuts nylock or brass compression nuts?  If they were nylock
that is another reason it could happen.  Nut gets loose and stud falls out.
Nyloc does not work in hi temp apps.  Use brass or steel.

BTW, mine has about 4K miles on it with probs yet since the new head.

HTH,

Shayne P.



1972 MB 280 SEL
1984 4ksq
1987 4ks
1991 v8q5
1991 200q Sedan
1992 S4

Parting:  1972 Mercedes Benz 280 SE 4.5

> From: james accordino <ssgacc at yahoo.com>
> Date: Wed, 4 Oct 2000 17:56:00 -0700 (PDT)
> To: audi list <quattro at audifans.com>
> 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
>