Hi all, my friend and I have recently started to renovate my old 1974 Stag that has been laid up for several years. All seemed to be looking hopeful, engine turned, but unfortunately no petrol getting through to fire up. After looking on here, we tried bashing the SU fuel pump and checking the inertia switch but the fuel pump is silent. Is there anything else we can do to get it going or is the only option to buy a new/different pump? Any help would be appreciated..... we are very new at this game!! Thank you.
-
-
You can get a re-build kit for the SU pump from LD parts, cheaper than buying a replacement and an easy job too really...Mike
-
Make sure you have good electrical connections to it, sometimes you can get a large voltage drop on the + side so you could run a live directly to the battery also make sure you have a good earth on the pump. Being as the car has been laid up for a while it may be a good idea to give it a fresh fuel supply Eg from a can to get it fired upComment
-
-
Thank you
Comment
-
Ensure there are no petrol fumes or leaking fuel in the boot area.
Check that voltage is present at terminals.
Assuming it to be original and there being no "ticking" pump; disconnect electrical connectors and remove the pump from the bodywork mount (no need to remove fuel banjos - but be gentle as the hard plastic fuel pipes can be brittle.)
Remove the (eight - I think) screws at the diaphragm end and split the unit. Careful; there may well be liquid fuel in the aluminium part were the banjos are mounted.
Check the integrity of the diaphragm and that the central solenoid moves freely and returns (spring return) in the main pump body; just press the diaphragm the movement is only around 5mm or so.
Remove sticky tape and plastic end cap from the other end. This will reveal the contacts and associated switch gear that gives it the distinctive "tick".
Start by simply cleaning all the contacts, etc., in-situ. It is very primitive electro/mechanical engineering. Check that all of the contacts operate (make-and-break) freely.
Reconnect and test the switch-gear. It should (hopefully) now work.
Re-assemble, replacing the electrical tape around the end cover, and enjoy.
I had to do this on the side of the road; took about twenty minutes in total.Comment
-
Thank you so much Paul.....much appreciated.Comment
-
Thank you Mike and Staggard!Comment
-
Thank you all for your help. I'm not sure if my replies are getting to you as they don't show up my end. I'm new at Forum chat as well as Stag reno! xComment
Comment