Aftermarket electric fuel pump? Any recommendations for a replacement?

JoMo1974 · Jun 21, 2023

Hi again, am looking into a potential fuel delivery issue with a '74 109 and have come to the conclusion (I know, I'm so astute) that the original mechanical pump has been replaced by this wee electric jobby at some point. It makes noise but nothing much comes out, so I'm guessing it's kaput.

I don't want to be fitting a mechanical one back as it appears they suffer from their own issues, but does anyone have any recommendations for a new electric pump? Also, should I fit a pre-pump inline filter to save it getting clogged over time or is that going to interfere with things even more?

Thanks!

JoMo1974 · Jun 21, 2023

Located what I think is this pump (or one very much like it) on eBay: https://www.ebay.co.uk/itm/202771434372

I was starting to think that maybe the delivery pressure would be wrong and mess things up but I see that John Craddock sell them as replacement bits for the petrol 2.6 so I think maybe it's ok and I'll just go like-for-like:

PRC3901 - Fuel Pump Electric V8 and 2.6

PRC3901, fuel pump electric v8 and 2.6 for Series 3, Defender 90/110, Range Rover Classic, Land Rover Parts and Range Rover Parts

www.johncraddockltd.co.uk

Does anyone think the JC one at nearly double the price would be any different than the eBay one?

marjon · Jun 21, 2023

I have no idea if that is actually up to the job. But it looks reasonably new in your pic. So maybe there is a blockage or a hole letting air in.
Oh and yes I would fit an inline filter somewhere easy to get to and you can see (engine bay

)

What engine do you actually have?

@Hicap phill

J

JoMo1974 · Jun 21, 2023

marjon said:
I have no idea if that is actually up to the job. But it looks reasonably new in your pic. So maybe there is a blockage or a hole letting air in.
Oh and yes I would fit an inline filter somewhere easy to get to and you can see (engine bay )

What engine do you actually have?

@Hicap phill

J

Wouldn't the filter be better placed before the pump?

It's a 2.6L straight six petrol

JoMo1974 · Jun 21, 2023

I've just seen the BritPart equivalent, it looks the same but has this stamped on the box "MUST NOT BE MOUNTED HORIZONTAL. MUST BE MOUNTED MORE THAN 30DEG FROM HORIZONTAL".
So that might be my problem? Although how it's coped up to now is anyone's guess (unless it was fitted and then not driven until the day i bought it?!)

Hicap phill · Jun 21, 2023

Stand that pump up….
Big nut on end allows acsess to a filter.
I run that pump on my TDI 110 & it’s fitted in the engine bay & sucks all the way from the rear tank.

Hicap phill · Jun 21, 2023

Another way to check if it’s working is to restrict the out put. The pump will stop ticking,when flow released pump will tick again

lynall · Jun 21, 2023

I think the end of them pumps unscrews, and under the cap is a mesh filter.

kevstar · Jun 21, 2023

JoMo1974 said:
Located what I think is this pump (or one very much like it) on eBay: https://www.ebay.co.uk/itm/202771434372

I was starting to think that maybe the delivery pressure would be wrong and mess things up but I see that John Craddock sell them as replacement bits for the petrol 2.6 so I think maybe it's ok and I'll just go like-for-like:

PRC3901 - Fuel Pump Electric V8 and 2.6

PRC3901, fuel pump electric v8 and 2.6 for Series 3, Defender 90/110, Range Rover Classic, Land Rover Parts and Range Rover Parts

www.johncraddockltd.co.uk

Does anyone think the JC one at nearly double the price would be any different than the eBay one?

25 quid bgay stuff I wouldnt touch that, ive always used facet pumps or walbro & depending on the pump you might need
a pressure reg pays yer money n takes yer chances.

BikerB · Jun 22, 2023

My 2.6l is fitted with an electric pump that looks very like the one you have pictured, the parts book, and my original vehicle before rebuilding say 2.6l are all electric not mechanical?
Mine is mounted vertically just like the original pump was though?
Original pic and replacement fitted but not yet plumbed.

JoMo1974 · Jun 22, 2023

JoMo1974 · Jun 22, 2023

lynall said:
I think the end of them pumps unscrews, and under the cap is a mesh filter.

If I take the end off while it is still attached to the tank without crimping the fuel line in, will fuel pish everywhere?

Turboman · Jun 22, 2023

JoMo1974 said:
View attachment 291086 View attachment 291087

Hi again, am looking into a potential fuel delivery issue with a '74 109 and have come to the conclusion (I know, I'm so astute) that the original mechanical pump has been replaced by this wee electric jobby at some point. It makes noise but nothing much comes out, so I'm guessing it's kaput.

I don't want to be fitting a mechanical one back as it appears they suffer from their own issues, but does anyone have any recommendations for a new electric pump? Also, should I fit a pre-pump inline filter to save it getting clogged over time or is that going to interfere with things even more?

Thanks!

Not really had any issues with the mechanical pumps, to be honest.
I always think standard is best.
And anything that avoids electricity on a vehicle is always a winner for me.

Hicap phill · Jun 22, 2023

JoMo1974 said:
If I take the end off while it is still attached to the tank without crimping the fuel line in, will fuel pish everywhere?

Probally…..
:vb-kaioken:

Can you push a bolt inside the pipe & do the clip back up?

Colthebrummie · Jun 24, 2023

Turboman said:
Not really had any issues with the mechanical pumps, to be honest.
I always think standard is best.
And anything that avoids electricity on a vehicle is always a winner for me.

I agree. As far as I can tell, the only real issue with the original mechanical pump is when you leave the vehicle unused for a couple of weeks and fuel seems to drain out of the pump and back towards the tank. Priming it by hand is a pain. When this happens, I just pour some petrol straight into the top of the carb and fire it up.

Col

Turboman · Jun 24, 2023

Colthebrummie said:
I agree. As far as I can tell, the only real issue with the original mechanical pump is when you leave the vehicle unused for a couple of weeks and fuel seems to drain out of the pump and back towards the tank. Priming it by hand is a pain. When this happens, I just pour some petrol straight into the top of the carb and fire it up.

Col

I don't think I have ever had that happen. Mine always seem to start up with a bit of cranking, however long they have been left.

Electric fuel pumps, on the other hand, I have always found to be trouble. I think the ones people fit on Series are pretty much the same as what was on Morris Minors, and we were always opening the bonnets on those to tap the pump and fiddle with the connections.

BikerB · Jun 25, 2023

Turboman said:
I don't think I have ever had that happen. Mine always seem to start up with a bit of cranking, however long they have been left.

Electric fuel pumps, on the other hand, I have always found to be trouble. I think the ones people fit on Series are pretty much the same as what was on Morris Minors, and we were always opening the bonnets on those to tap the pump and fiddle with the connections.

I have had a few MG's and they are all fitted with SU pumps. They generally work OK but do give trouble now and again. Its when you put in the key and don't hear the click, click click that you know you are going to have to give it a knock.
TBF the problems are usually the points in the pump and lack of maintenance, its not normally the pump diaphragm itself.

JoMo1974 · Jun 26, 2023

Fuel delivery woes now solved - hurrah!
New pump, new fuel, cleaned lines.
Thanks again

Aftermarket electric fuel pump? Any recommendations for a replacement?

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