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due to issues with too high fuel pressure from a later style replacement pump, I picked up an old AC glass dome fuel pump a while back and recent got a universal AC pump rebuild kit. I was able to successfully rebuild the pump but have a few questions that hopefully you can help me with.
1) The kit came with a mesh/screen that appeared to fit on the underside of the rubber diaphram. I could see no rhyme or reason for this part and left it out. It is not the same as the filter that goes up under the glass dome. I also had a spare rubber ring, which I figured was for the other style of glass dome. Is this filter-thing a critical part, or a spare for a different model pump?
2) the two one-way valves that are fitted to the upper half of the pump were *very* difficult to remove. I ended up destroying the old ones in order to get my replacements valves in. The reason for this was that the pot metal had been "squished" down in several places around the housing press to retain the original valves. It looked like something intention done at the "factory." I had to ream the metal a bit to allow the new valves to fit in. (it's exactly 3/4"). I dropped my new valves in, but I'm not sure what I should do to retain the new valves. They are pretty snug, but I don't want to rely on that when this pump is on the car. Should I use some epoxy, JB weld, or should I deform the metal again to retain the new one-way valves?
3) The portion of the pump covered by the glass bowl has a lot of old dirt and crud. I scrubbed it out as best as possible, but there is some grit down in the crevasses that none of my brushes can reach. If I understand the operation of the pump, this stuff will be screened out anyway, but it looks bad and you never know if it will gum up the lines. What's the best solvent/cleaner to break up this sort of grit. GUM-OUT?
4) should I keep my in-line pre-pump fuel filter now that the pump has a built-in filter?
Since I have the rubber fuel line, I had to hunt up some 3/8" ID brass nipples for my fuel lines. Should use some sort of Teflon tape on the brass thread to avoid leakage around the fittings? The fittings do not screw tight against the housing so I can't use copper washers.
Thanks for any advice/instruction.
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