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MG TD TF 1500 - Sick Fuel Pump

The fuel pump on my TC has the following symptoms:
It always ti tic tic tic but sometimes it delivers fuel and sometines it does not deliver fuel
When it does NOT deliver fuel the pump can tic tic tic for minutes and maybe hours before starting to deliver fuel. the car can be cold or the engine hot there is no difference because I just do not get fuel into the carbs bowls.
The contacts points are OK.
I assume there is no air leak because when the fuel pumps works fine I find no traces of fuel....
Please send me your medications....

Thanks
Jose Vicente Vargas

Do you have a fuel filter between the pump and the carbs...is there dirt in it... that would show some dirt coming through in the fuel...there is a filter in the pump at the inlet.
There is a fine mesh screen in the bottom of the fuel tank...where the fuel line comes out...pull that and see if it is clean...
Don't let your pump go tic,tic,tic, if it is not delivering fuel?
gblawson(gordon)

Jose - A constantly running SU fuel pump indicates that there is an air leak somewhere on the inlet side of the pump. This can be confirmed by directing the outlet of the pump into a container, all the way to the bottom, turning the ignition on and watching the flow of fuel into the container. If there are bubbles in the fuel as it is pumped out, then you have an air leak somewhere on the inlet side of the pump. It could be something as simple as a loose connection of the line from the tank to the pump being loose, the screws securing the coil housing to the pump body being loose, or the diaphragm having a tearing it.

You could also have a bit of debris trapped in the inlet valve that is keeping it from closing properly. Contact me directly at SUfuelpumps@donobi.net and I'll try and help you troubleshoot the problem. Cheers - Dave
David DuBois

This thread was discussed between 08/08/2009 and 09/08/2009

MG TD TF 1500 index

This thread is from the archive. The Live MG TD TF 1500 BBS is active now.