I had a similar problem with a TD belonging to my nephew. Car ran fine for
years, then he had a gas tank leak so had the tank repaired and cleaned. A
"new" fuel pump was fitted on the firewall by a DFCE (dumb foreign car
expert) garage. The garage also fitted an inline fuel filter on the
suction side of the pump.
Car would run fine at low speeds, but as soon as you tried to push it a bit
it missed.
Turns out the garage fitted an MGB universal pusher fuel pump on the
firewall, then compounded the problem by fitting the fuel filter on the
suction line. Pump just could not cope. To add insult to injury, the DFCE
threw out the original SU pump complete with discharge elbow.
First I tried my spare SU low pressure fuel pump, leaving the filter in
place. TD ran better, but not good. Removed the filter and all is well.
So, I would stick to the original SU fuel pump and screens in tank, pump
base and carbs and leave the fuel filters to modern cars.
Bob
----------
> From: Leckstein <bleckstein@mail.monmouth.com>
> To: BobMGT@aol.com; mg-t@autox.team.net
> Cc: mgs@autox.team.net
> Subject: Re: TD looses power at speed
> Date: Monday, April 26, 1999 8:06 AM
>
> At 12:26 AM 4/26/99 EDT, BobMGT@aol.com wrote:
> >When I hit the highway the TD can accelerate to 55 mph all right, but
the
> car
> >gradually looses power and can't sustain that speed. If I slow down for
a
> >while, the power seems to come back. I'm thinking the fuel delivery may
not
> >be keeping up with the demand from the carb. Does anyone know of a good
way
> >to check this, or some other problem that may cause this symptom ? The
car
> >has a new fuel pump and the filter is clean.
> >
> >Bob Donahue (Still stuck in the '50s)
> >EMAIL - BOBMGT@AOL.COM
> >52 MGTD - under DIY restoration NEMGTR #11470
> >71 MGB - AMGBA #96-12029, NAMGBR #7-3336
> >
> What filter? Check the filters on the pump and on the carbs, then trace
the
> fuel line for hidden filters back to the tank. Check the screen in the
tank
> ( a pain in the a**.
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