Re: Cold start /Air bypass Valve...???

[Paul Hanley <credere@worldnet.att.net>]

Sounds like you are definitely on the right track. There is a small nut on
the air bypass unit. Loosen it and slide it over a bit, this will close the
hole a bit. Then tighten it back up of course. Apparently, too much air was
getting in. I don't think you should see it idle higher than 1300 when
cold. See if you can get a dwell meter or a CO meter(even better) and
adjust your mixture. Of course, make sure all vacuum leaks are resolved first.

Good luck!
Paul Hanley

At 08:53 PM 10/22/98 -0700, Sonic Druid wrote:
> I recently had an idling problem with my '82 Roco.....
>it would start but would not idle, and I would have to keep my foot on the
gas
>pedal just
>to keep it running...
> after a few minutes when it gets warm or hot...the car idles fine...maybe
a little
>high but
>it does idle....
>
> anyway, I took it to a mechanic and he replaced the "Air bypass valve",
and now
>when you
>start the car, it jumps to 2000 rpms and sits there for a while before slowly
>dropping to
>around 1000 rpms....sounds like a freight train....
>  Of course the mechanic said that that was standard for the car that I
had, and of
>course
> I found that very hard to believe....
>
> anyway, from what I could figure out, the mixture was probably not set
correctly
>or maybe
>way way way too high or rich...
>  after some adjustments of the mixture along with the idle screw I've
gotten the
>initial idle
> to come down some but not to a perfect setting as of yet since I have to
start
>with a
> "Cold" car....
>
>   anybody have any ideas or think I'm on the right track here ???
>
>--
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