[urq] Post overhaul issue, 83 Urq

[David Ritter]

Thanks to all that have offered suggestions. I've been going through a few
things today, and it's still acting up. I've had the fuel line off at the
fuel pump and gas is pouring out rapidly, so I don't really suspect a
clogged up tank.
I've found and replaced a couple of vacuum lines that were looking bad, but
that did not change anything.
Most suspect leaning out due to fuel pressure low or vacuum leaks, but it
doesn't sound like dying lean to me. The low rough idle seems rich and
there is quite a bit of popping and banging out the tailpipe, especially
when closing the throttle, when slowing down in gear.
If I rev the motor when it starts to chug, it seems to cough and slowly
accelerate with the exhaust popping until 4-5k rpm.
Whatever it is, it is worse when attempting to drive, the engine under load.
If I allow it to cool down, it runs fine for a few minutes at idle, or
briefly if attempting to drive.
Thanks again,
Dave

On Jul 30, 2016 17:03, "David Ritter" <dave.ritter at gmail.com> wrote:

> My 83 .
> Urq has been off the road for a couple of years waiting for me to replace
> the head, exhaust manifold and turbo. My old exhaust manifold was cracked,
> warped and leaking. The head had a couple of stud issues.
> I managed to finally gather up everything I thought I would need and tore
> it apart following the guide Phil Payne wrote up many years ago still found
> on Audifans. The whole project really went pretty well and I only had a
> couple of minor problems with reassembly.
> The Water Pump, Timing Belt, Spark Plugs, Fuel Pump and Fuel filter and
> air filter have all been changed. The injectors got new seals before going
> back in. Most of the old gasoline was siphoned out and replaced with new
> gasoline and some injector cleaner.
> On cold start it seems to run perfectly normal for a few minutes, boosts
> normal, idles smoothly.
> Unfortunately, approaching normal operating temperature, power loss,
> missing (feels initially like a fouled plugs), low idle and stalling out.
> This will occur whether driven for a few minutes or just left to warm up
> idling.
> I've tried to go back over everything and can't figure out what got messed
> up.
>
> Does this sound familiar to any of you experts?
> Thanks for listening,
>
> Dave
>