Of course I am not being serious here, it is afterall a fuel pump, but......why do they leak oil so willingly...... :evil: ?
While transferring fuel from inlet to outlet, these pumps,...certainly from my experience also love to fill with oil and then happily pump it out both from around the edge of the main diaphragm and from the air bleed hole.
Even with an oil seal fitted, sometimes sealed with permatex around the diaphragm shaft, sometimes not, for it makes no difference,..the oil will still infiltrate the top section of the pump, coat the diaphragm and then happily leak as detailed above.
I have tried Leyland P76 fuel pumps, essentially a carbon copy of the AC pump save for a longer actuation arm, thus a thicker gasket is required to space it correctly. These pumps came as standard without an oil seal, so oil would leak from them pretty well right from the off.
Even so, this obsession with leaking oil has never compromised the fuel pumping ability, and as such is very much more of a nuisance than a potential point of failure.
Am I the only one who experiences this problem with the AC mechanical fuel pump?
Have you found a successful means of preventing this problem, should your pump also like to masquerade as an oi pump?
Ron.
While transferring fuel from inlet to outlet, these pumps,...certainly from my experience also love to fill with oil and then happily pump it out both from around the edge of the main diaphragm and from the air bleed hole.
Even with an oil seal fitted, sometimes sealed with permatex around the diaphragm shaft, sometimes not, for it makes no difference,..the oil will still infiltrate the top section of the pump, coat the diaphragm and then happily leak as detailed above.
I have tried Leyland P76 fuel pumps, essentially a carbon copy of the AC pump save for a longer actuation arm, thus a thicker gasket is required to space it correctly. These pumps came as standard without an oil seal, so oil would leak from them pretty well right from the off.
Even so, this obsession with leaking oil has never compromised the fuel pumping ability, and as such is very much more of a nuisance than a potential point of failure.
Am I the only one who experiences this problem with the AC mechanical fuel pump?
Have you found a successful means of preventing this problem, should your pump also like to masquerade as an oi pump?
Ron.