200tq won't run

[isham-research.freeserve.co.uk at pop.pol.net.uk]

>>Assuming it's a 10V engine, these are the symptoms of the engine firing
>>and running for a few seconds on the cold start valve.  The main fuel
>>supply through the metering head is not working.  Probably the mixture
>>screw is grossly mis-set.

> usually the CO mixture screw in the fuel dist. doesn't get messed w/.
> I give it a 90% chance that it's vac. leak as others have said.

No, but during major work on an engine it often happens that _old_
air leaks get fixed.  If the fuel metering head had previously been
mis-adjusted to compensate for the old leak, then it will be incorrectly
set for the (now non-leaking) engine.

It's quite common after complete rebuilds.  We happen to have complete
metering head/air mass sensor assemblies for WRs and MBs on the shelf -
we generally fit one of these first and then swap the old one back in
when we know the engine runs.  We do the same with plug wires, FWIW.

--
 Phil Payne
 UK Audi quattro Owners Club
 http://www.isham-research.freeserve.co.uk/quattro
 Phone +44 7785 302803   Fax: +44 7785 309674