re: MC head removal

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <19981002071759.311.qmail@hotmail.com> "Matt Martinsen" writes:

> Probably of most use is that the head can be removed and
> installed with both the turbo and the intake manifold installed.

The inlet manifold is fairly easy to get on or off in the car, and
its removal makes the mass more manageable.  My procedure leaves the
EM on the head until it hits the bench.

One of the drawbacks of the Dialynx manifold is the raised logo cast
into the top of the manifold - it makes accessing two of the Allen
screws holding the inlet manifold in place quite difficult.

> This makes it much easier since one bolt on the turbo-manifold is
> quite difficult to access.

Virtually impossible, on the ur-quattro.  It's also best to tackle
old EM nuts with six-point sockets and wrenches.  I've found both
12mm and 13mm nuts on Audi EMs - I have a _WONDERFUL_ flat ring (box)
spanner (wrench) from FACOM - 12mm + 13mm, six-point.

> On mine I removed the fuel lines from the distributor, thought in
> retrospect it probably would have been easier to remove the
> distributor with the lines attatched.  Either way.  I'm not sure
> how many hours it took me.

With fuel injection, cleanliness is everything.  Leaving the lines on
the metering head keeps the system dirt-tight, apart from the feed
and return lines.

> It started out as replacing a cracked EM, four (4!) broken studs
> later (snapped right off with virtually _no_ resistance) required
> the head removal.  I do know that dealer quote for replacing the EM
> was four hours, without head removal.  Not an afternoon job.

Both Roger and I now do a 'dry run' reassembly as soon as all the
broken studs are out.  Both of us have had every recent rebuild 'go
bad' with a snapped stud during reassembly.  I now routinely replace
_all_ studs except the cam cover and cam belt cover ones with new.

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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