Re: Idle problem- 87, 5kcst

[rjandrew@post.cis.smu.edu (R Justin Andrews)]

Plastic....
Injector sleeves are plastic correct??? Check these if he melted the 
wire loom imagine these sleev which go into the head. 
BTW< I believe this sounds like a vacuum leak problem. as I recall removing the
oil cap should cause the engine to stumble but not stall. maybe I'm wrong
but that is what I recall from my dad' 90 200T.
HTH,
Rich Andrws
rjandrew@post.cis.smu.edu
> 
> I am writing on behalf of my friend, another Audi owner who does not (yet)
> have access to the infinite wisdom available on this list <g>.
> 
> He has a 5kcst which he recently replaced the head gasket on.  Ever since,
> it has idled very roughly and feels like its running on 4 cylinders when
> you first give it the gas, after that, it hums along just like it should.
> He's cleaned the ISV (at my request) which improved things slightly but not
> much.
> Another weird thing........If he pulls the oil cap off while its idling, it
> stalls immediately.
> I think there's something screwed up in the crankcase ventilation system,
> but I have no experience with this problem.
> 
> His SO was driving it when the head gasket originally went and just about
> melted the engine down.
> The engine got so hot that it started to melt the ignition wire loom on the
> top!
> 
> He replaced the water pump, TB and head gasket, put it all together and
> started it up, but immediately shut it down due to lack of oil pressure.
> 
> After pulling the pan, he found a glob of plasticized goo about the size of
> a small cup plugging the suction strainer of the oil pump.  He cleaned it
> out, buttoned it up and the car still runs pretty good exept for this idle
> roughness.
> Any ideas about the idle problem or what the heak he could have melted into
> the oil pan?
> 
> TIA
> 
> Jerry
> 86 5ks 157k, slushbox but going strong (friends 87 5kcst, still ailing from
> meltdown)
> 
> 
>