Bob :
Get a fuel pressure gauge (most manifold vacuum gauges will also read
fuel pump pressure) and 'tee' it into the fuel line at various points to
isolate the problem. For a test, you can put the gauge itself under a
wiper blade, so you can see it while driving but don't have fuel running
into the passenger compartment.
Sounds to me like you've got a chunk of something that gets sucked up
against a fuel opening, like the tank pickup or one of the rubber to
steel transitions. For a "shotgun" approach, I'd start by inspecting
the inside of the tank through the filler, then replacing all of the
soft fuel lines, especially from the tank to the body. If your car
still has the anti-runon valve, I'd also try disconnecting it as a test.
Randall
"Robert M. Sexton" wrote:
>
> My 1976 TR6 only has 33,400 miles on it.
>
> Two weeks ago, I put about 160 miles on the track at VIR
> (http://www.virclub.com) and had a lot of fun!
>
> One session, however, after heavy cornering and then acceleration, the car
> sputtered out on me and acted as if it was not getting fuel. I limped off
> the track, opened the bonnet, acted like I knew what I was doing (I
> didn't), closed the bonnet, and returned to the track without problems the
> rest of the weekend.
>
> This morning, however, a similar thing happened. I warmed the car up, it
> idled fine, took it out of the garage, and raced down the hill and up the
> other hill. However, it again acted as if it was not getting fuel. I
> coasted home and into the garage. The car idles fine but dies under load
> and acceleration.
>
> The fuel tank and lines were replaced a year ago.
>
> Any suggestions --- fuel pump, carburettor, fuel filter, ignition,
> etc.???? How to diagnose???
>
> I was _really_ looking forward to taking the TR6 to the SVRA events at VIR
> this weekend.
>
> Thanks,
>
> Bob Sexton
> sexton@starmark.net
> 804.792.0167
> 23 minutes from VIR! (http://www.virclub.com)
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