Sounds like dirt or sediment blocking the in-line fuel filter if you
have one or the fuel line itself may be filled/clogged with sediment.
The same symptoms you mention happened to a friend's TR-250 and he
finally disconnected the fuel line from both ends – the tank and the
carbs– and blew air through it and a load of crap came flying out. It
seems the sediment would block the fuel line while the car was
running/moving and would clog the fuel line and stop the car from
running. The sediment then would settle to the bottom enough to let the
gas flow again until after starting and running andwould block the fuel
line again. And so on and so on. He would sit a while and then the car
would start as nothing ever happened and then drive for a few miles and
the car would die. Again a few minutes later the car would be fine.
Hope this helps.
Chad Stretz wrote:
> Fellow lister Tony Zager and I drove to St. Clair MO to pick up some
> parts. On the way home, my TR6 did some wierd things.
> We were able to drive at highway speed for about five minutes or so, and
> the car would sputter and die. After it sat for a moment, (sometimes as
> little as 20 seconds) it would start right up and go again for about
> another five minutes. The longer we sat, the longer we could drive
> until it died again. A 2 hour trip turned into 6 1/2!
> We replaced all of the parts we could with the spares I had in the
> trunk; points, condenser, distributor cap, still no difference. Fresh
> fuel didn't make a difference, either.
> If I revved the engine hard after startup, it would run all the way to
> 4500 rpm or so, but wouldn't stay for very long. It seems to idle with
> just a slight misfire, as long as there is no load on the engine.
> Where do you folks think I should start? Carb diaphragms? Fuel pump?
> Coil? Priest?
> Any ideas welcome,
> Chad Stretz
> 73 TR6
Elkins Park, Pennsylvania, USA