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Ur-Q Hot Start Problem

In message <9701231636.AA05125@mashtun> Paul.J.Timmerman@jpl.nasa.gov writes:

> The real problem with hot start in the early Q's is vapor
> lock in the fuel injection lines.  I have to crank for 20 seconds
> to clear it out.  Opening the hood after a hot run will get rid
> of it.  the later cars have an improved blower motor, injector
> cooling set up.

There was a running change (and perhaps a TSB) that put a hole in the injector 
fan shroud so that some of the air on its way to cool the injectors themselves 
would escape and blow across under the bonnet to cool the fuel lines.  I've 
never seen an ur-quattro without this hole, but on the early ones it's always 
roughly cut and varies in size.  On the later ones, it's moulded into the 

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club