[Mgb-v8] Fuel Pump Woes

[Carl Floyd]

Kelvin,

Interesting.

I tried sticking with my stock '79 B SU pump. I found when driven hard in 
the turns )like 5K+ RPM in 3rd gear around a curve) it would lay down like I 
had run out of fuel. It was as though the SU couldn't fill the float bowl 
fast enough. I tried raising the the floats with no change. Switched to a 
noisy Carter, & 5 or 6 track days & same number of autocrosses later, 
problem seems gone for good.

The 4 banger MGB road racers swear by the Holley fuel pump that flows a 
gazillion GPH.

Carl Floyd


----- Original Message ----- 
From: "Dodd, Kelvin" <doddk at mossmotors.com>
To: "Rick Huber" <hubrick at gmail.com>; <mgb-v8 at autox.team.net>
Sent: Wednesday, October 15, 2008 11:45 AM
Subject: Re: [Mgb-v8] Fuel Pump Woes


> Rick:
>
> The original SU pump works just fine for a carbureted 3.5L. I've gone
> the same route of multiple different after market pumps, but have come
> back to the original. Just a thought.
>
>
> The kicker for me was looking at a UK built V8 powered Group B Rally MG
> Metro. They had pulled out the Rover derived V6 and installed a V8 in a
> very professional manner. With all of the pumps available, they chose a
> good ole' SU one to keep it fed.
>
>
>
>
>
> Kelvin Dodd
>
>> -----Original Message-----
>> From: mgb-v8-bounces at autox.team.net
>> [mailto:mgb-v8-bounces at autox.team.net] On Behalf Of Rick Huber
>> Sent: Tuesday, October 14, 2008 6:38 PM
>> To: mgb-v8 at autox.team.net
>> Subject: [Mgb-v8] Fuel Pump Woes
>>
>> Hi V8ers,
>> I have a 75 MGB Rover 3.5 V8.  I've been running the Borg
>> Warner EP-10 fuel pump for 9 years, mounted on the underside
>> of the panel just in front of the gas tank, just above the
>> rear axle, so fuel pump above the tank.  In July, the fuel
>> pump quit.  I called several parts stores looking for the BW
>> EP-10, which is not made anymore, but Napa cross referenced
>> it to something they carried.  I don't have the box anymore,
>> but the label on the pump is Carter with two numbers,
>> P61296S, and 08C04A.  Swapped pumps and the new one lasted
>> about 50 miles.  Checked everything in the system before
>> determining that indeed the brand new fuel pump was bad,
>> wouldn't even pump gas out of a jar on the floor of the
>> garage after removing it.  Took it back to Napa and got
>> another new one, assuming the pump was bad.  Changed inlet
>> hose, connections, blew back into the tank, put on another
>> upstream filter.
>> Second Napa pump lasted about 300 miles, one drive past a
>> weekend trip with the club from Baton Rouge to Natchez for
>> the Natchez/Vidalia car show.
>> Talked to a few people, and someone suggested a different
>> brand, different store, so I went to Auto Zone and got the
>> Airtex E8016S.  Got home and took it out of the box, and it
>> looks identical to the Carter.
>>
>> I've put it on the car, but I have a feeling it's only going
>> to last a very short time, so I'm ready to try something
>> different.  Is the problem that these new pumps won't suck
>> gas out of the tank when mounted above the tank?
>> Can I get a different pump that I can mount in the same
>> location that will suck gas out of the tank?  I can change
>> the mounting location of the Airtex pump, but that sounds
>> like a pain if I could just swap the pump again in the same
>> location. I've heard of the little square pumps - someone
>> said to get the low pressure version for a carburetted car.
>> Anybody with a similar experience?  Any solutions?
>>
>> Thanks,
>>
>> Rick Huber
>> Safety Faster with a V8
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