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MG MGB Technical - Fuel Pump Leak

Hi

My fuel pump looks quite wet & seems to be leaking very slighty.

The leak seems to be coming from the left hand outlet connection.

http://www.mg-bgt.co.uk/problems/fuelpump.jpg

I have wiped away the fuel & tightened the bolts (all which seems quite tight anyway)

Other than this the pump seems to be working fine.
Is the pump going to need replacing?
Is it a very easy task to undertake?
Any tips or precautions when doing so.
Is this a SU Fuel Pump

72 BGT

Thank you
Steve
Steve99

Hard to tell where the leak is exactly coming from
in your photo.

Wipe dry, and make another attempt to find exactly where the fuel is coming from.

If it's from the banjo, then usually a new fiber
washer (gasket) will keep things dry.

The tubing joint does not look OEM as your's
looks like it employs a compression tubing
fitting. If so, then getting another compression
ring from a plumbing supply might seal things.

The OEM tubing connection employs an
all-metal tapered joint and it has to be
carefully aligned before tightening. If it is badly distorted, then a new section of tubing can
be had from various sources.

In all cases, I do not think that you'll need to
replace the pump itself.
Daniel Wong

If the banjo is leaking then remove and check the copper washers each side, maybe one has been missed out. The wetness seems to be spreading *upwards* from the banjo, so maybe it is coming from a split diaphragm. Really you need to empty the tank and pump, dry the pump off off, spread talcum poweder over the diaphragm and banjo joints, then put petrol in and look for where it is spreading from. If is *is* the diaphragm then a replacement pump is probably the best option. Even if the copper wahers are presnt and sound it is possible you have a crack in the pump housing or banjo connection, which will need replacement of the pump or connection respectively.
Paul Hunt 2

looking at the fuel stains, it appears the banjo bolt (most forward in the picture)washer/gasket is the culprit. It is not that big of an ordeal to replace. Besides, it is a cheap fix.

Let us know how it turns out

cheers

Gary :>{D
79mgb
gnhansen

This thread was discussed between 03/08/2006 and 08/08/2006

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This thread is from the archive. The Live MG MGB Technical BBS is active now.