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SU Fuel pump - mounting options - Printable Version

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SU Fuel pump - mounting options - JohnD - 06-05-2025

Iam looking to mount a SU pump on a 1927-8 chummy with front tank - however space under the bonnet is tight, can anyone give some suggestions on where the best place to mount the pump is?


RE: SU Fuel pump - mounting options - Ruairidh Dunford - 06-05-2025

Inside the footwell, above the passenger's feet.


RE: SU Fuel pump - mounting options - JohnD - 06-05-2025

Thank you

 I looked at that option lastnight, but wasnt convinced it would be easy to access should it need any maintinence.


RE: SU Fuel pump - mounting options - Tony Griffiths - 07-05-2025

(06-05-2025, 01:06 PM)JohnD Wrote: Thank you

 I looked at that option lastnight, but wasnt convinced it would be easy to access should it need any maintinence.
You may find this article helpful; it tells you about fitting a 'transil' (in effect a capacitor) across the points to stop them arcing and so extend their life.
https://ttypes.org/extend-the-life-of-your-su-fuel-pump-fit-a-transil/
I'm unsure if new 6-volt pumps can be ordered with one already fitted (the plastic end cap has a cylindrical bulge if they do). https://sucarb.co.uk/su-fuel-pumps-spares/single-lp-pumps-kits/electric-fuel-pump-dual-polarity-6-volt.html

https://sucarb.co.uk/su-fuel-pumps-spares/single-lp-pumps-kits.html

The SU website looks to have been designed by a 12-year-old on acid. Looks modern and clean, but is challenging to navigate. The menu system is hopeless, and the search is useless - put in "6-volt fuel pump" and you get almost anything but. Finally, I phoned them about a different enquiry and was given excellent help: 01722-412-500


RE: SU Fuel pump - mounting options - Chris KC - 07-05-2025

I believe Burlen offer an "electronic" (points free) version but last time I looked I could only see a 12V model.

The standard SU pump is effectively maintenance-free if the car is regularly used. 
After long periods standing idle the points can stick (in which instance a whack with a bit of wood is all the 'maintenance' mine ever needed, to jolt them free again).
I recently overhauled the pump on my Ulster rep after about 35 years in service - I only did so because I was chasing after a fault which turned out in the end to be a blocked petrol tap - so it was completely unnecessary.