Mr. V wrote:
> Make certain the fuel pressure regulator is operating correctly.
>
> Perhaps it is failing and allowing out inadequate fuel pressure.
>


I thought about that, but would it fail intermittently and cause what
sounds like cavitation in the main pump? I wouldn't expect so, but then
I've been wrong before. Next time I'm at a yard I'll probably grab one
just to have a spare on hand.

J

Might be worth a mention......I had similar symptoms on a car some years
ago....Turned out to be a piece of plastic bag that had got into (?) the
petrol tank, when the tank was relatively full (plastic bag floated to the
top of the fuel) the car went well and when it had been standing for a while
it went well. But after the car had been running for a while the flow from
the tank to the pump would drag the piece of plastic onto the filter inside
the tank restricting the flow.

I had even fitted a clear plastic pipe the fuel line to help find out what
was happening, this showed bubbles (cavitation) in the fuel. This made me
realise that the problem was in the tank. Took about a weeks worth of hassle
to find this, even bought another pump in the process.

ttfn.....Alistair


"James Sweet" <jamessweet@hotmail.com> wrote in message
news:BFHLh.8907$dG.7302@trndny08...
> Mr. V wrote:
>> Make certain the fuel pressure regulator is operating correctly.
>>
>> Perhaps it is failing and allowing out inadequate fuel pressure.
>>
>
>
> I thought about that, but would it fail intermittently and cause what
> sounds like cavitation in the main pump? I wouldn't expect so, but then
> I've been wrong before. Next time I'm at a yard I'll probably grab one
> just to have a spare on hand.

Alistair Ross wrote:
> J
>
> Might be worth a mention......I had similar symptoms on a car some years
> ago....Turned out to be a piece of plastic bag that had got into (?) the
> petrol tank, when the tank was relatively full (plastic bag floated to the
> top of the fuel) the car went well and when it had been standing for a while
> it went well. But after the car had been running for a while the flow from
> the tank to the pump would drag the piece of plastic onto the filter inside
> the tank restricting the flow.
>
> I had even fitted a clear plastic pipe the fuel line to help find out what
> was happening, this showed bubbles (cavitation) in the fuel. This made me
> realise that the problem was in the tank. Took about a weeks worth of hassle
> to find this, even bought another pump in the process.
>
> ttfn.....Alistair
>
>

The fuel level doesn't seem to make any difference. I like the filter
idea though, I may add one so I can see what's going on, can't hurt to
have a filter there anyway.