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MG TD TF 1500 - Fuel pump testing

After a very frustrating day spent trying to disassemble the tub of the53 ( I decided to tackle something electromechanical that I might have a better chance at, i.e., the fuel pump. It's a later one with the capacitor across the points. The capacitor measures fine even after 50 years. I only needed to replace the dual points, valves and gaskets. Even the diaphragm is undamaged and pliable. I should have it back together shortly and would like to bench test it. However, I don't really want to bring a can of gasoline into my basement workshop. Anybody have a suggestion as to what other fluid might be used for testing a fuel pump?
Bud Krueger

Think I would do it outside with gas... not sure what varsol might do to the internals...although we clean a lot of stuff with it?
gblawson - TD#27667

Bud, if you want to make a realistic test, you should do it with a fluid of similar characteristics to gasoline (mainly density and viscosity). In addition, it should be unharmful for metal or rubber. I think that if not resorting to exotic fluids, you would end up with something that would be as inflammable as gasoline. I would do as Gordon suggests, and try with gasoline.

J. Benajes

Jesus, Gordon needs your photo.

Yes please......
gblawson - TD#27667

Bud - I have been using kerosene for testing the pump. While it is still flamable, it is not nearly as bad as gas. Lawrie Rhoads uses mineral spirits (paint thinner), still flamable but like kerosene, not the danger of gas. Good luck - Dave
David DuBois

Thanks, David, I see that kerosene is suggested in the workshop manual. When I rebuilt Lazarus' fuel pump I took it to Lawrie to have him check my work. Now that you mention it, I recall that he was using mineral spirits in his test rig. Thanks.
Bud Krueger

Bud - I am probably going to shift to mineral spirits when I rebuild my test stand, kerosene has a tendency to foam when agitated and it can sometimes be dificult to tell if I have an air leak in a pump or just some foam in the kerosene. Cheers - Dave
David DuBois

This thread was discussed between 12/10/2006 and 13/10/2006

MG TD TF 1500 index

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