Air leak / backfeed the system to find

[Curt Sprenger]

Steve,

First, check in the engine compartment for a schrader valve (tire fill
valve). Our 1987 PT has one there, just above the frame on the passenger
side and just inside of the rear engine lid. Hook up the shop air to
that valve. I'm assuming your Bird has that valve. I have used that
valve many times when working on air leaks.

I'm not sure about hooking up shop air to the air connection in the bay
that you mention. I believe there are check valves in the lines. Someone
will chime in that understands using that connection as you describe.

Good luck!

Curt Sprenger 1987 PT38, Anaheim Hills, Calif.



smquandt wrote:

> Finally got my '93 PT-40 home, we had to widen the drive a little,
> well OK LOTS, to do so. Now comes some work. There is an air leak
> someplace that I need to find. I really do not want to run the
> engine to re-pressure the system. I have a large compressor in my
> shop with a 60 gallon tank and max pressure of 140 PSI. If I set
> the outflow pressure on the compressor to 100# and hook a line up to
> the air connection in the bay is there any reason that I cannot back
> feed the system? I would keep the outflow valve on the compressor
> at less than 1/2 open to reduce the volume.
>
> I see emergency vehicles that are hooked up to back feed in most
> fire stations.
>
> Thanks in advance for help for the new owner, many nore questions to
> follow.
>
> Steve Quandt
> Spread Eagle WI / Iron Mountain MI
> 1993 PT-40
>
>
>
>