The only times I've experienced this it's involved the fuel filter
getting plugged with junk. It starts OK, you can run it for a few
minutes, then the filter element clogs. You stop running the engine,
everything settles to the bottom of the filter, and 10 minutes later you
can try again... For a few minutes.
Check the fuel filter (cut it open if necessary) to see if there's
anything in there. Could be gas tank liner, silicone, Teflon tape,
rust... You name it. As a first shot, just replace the filter and see if
the problem takes longer to manifest itself.
Cheers,
Theo
> -----Original Message-----
> From: tigers-bounces@autox.team.net
> [mailto:tigers-bounces@autox.team.net] On Behalf Of Cullen McCann
> Sent: September 18, 2009 8:32 AM
> To: tigers@autox.team.net
> Subject: [Tigers] (Non-Tiger) Fuel pressure falls off with temp?
>
> All,
>
> I try not to bomb the list with Non Tiger stuff, but we are a
> bit desperate, and you all can be so helpful.... I guess it
> could apply to a Tiger...the dynamics of the system aren't
> any different that I can think of. ...and we really need some
> good advice...
>
> Here is the situation, my good friend and I have built an
> early 70's full size ford truck 4x4...The fuel pressure falls
> off slowly from 6.5 psi on the gauge to about 3 or so....and
> eventually even lower until it tries to die as the engine
> warms up...over the course of a few miles driving or several
> minutes of engine at full operating temp.
>
> Here is what we have tried:
<snip>
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