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Hi I have an Allard P1 reg LXM 903 ( 20 bolt head) having fuel pump problems just not getting petrol to the carb do I fit a new pump ( Oneils seem to be out of stock) or restore old one, is fitting an electric pump a good option but would prefer to keep car original
many thanks Dave
Dave,
you can buy a repair kit or (my preference) fit an electric fuel pump.
Some people have both, so an electric pump for starting which they then switch off and have the mechanical pump take over.
I use an electric pump through a Malpassi fuel pressure regulator and bypass the mechanical pump. This works very well.
Dominic
Hi Dave,
I have a Facet electrical pump and no mechanical pump on my special. It works very well, and it’s a useful security measure being able to switch it off with the hidden switch.
Also useful to remember to turn it back on again otherwise there’s just enough fuel in the pipes to get you down the road before it stops.
Dave, fitting an electrical pump is pretty well the norm for many, if you do, you can fit it near the fuel tank out of the engine bay, but make sure you fit an inline filter before it to stop crud in the tank blocking the pump (Ask Ben about that one !) you can pump the fuel through the mechanical pump and don’t need to bypass the pump so all looks stock. If you rebuild the pump make sure you take the existing pump apart and get a matching rebuild kit, the push rod can vary, some have a slot and some have a Tee, the diaphragm’s are the same so you can take the diaphragm out of the kit and only use that, but that seems like a waste of the other new parts that come in the kit. If fitting an electric pump also fit a fuel pressure regulator, the carbs are very sensitive to over pressure and will flood if too high a pressure is provided, the Facet pump will be far too high, an SU pump should be OK, but it too is borderline on the pressure.
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