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Fuel pump conversion
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Layout a mounting plate for the pump.
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I'm using the 1.5" square OMC pump that is common to many outboards 4-15hp used between the early 70s and the early 00s. Despite it's small size, I could not modify one of the bypass covers to fit it nicely. So a mounting plate is employed
Lay out a piece of aluminium plate for mounting the pump which will attach over one of the bypass covers. You can see the four screw holes for the bypass cover bolts and the three lined up markings for the fuel pump between them. If you look close, you can see where I've added some 'ears' to the outline of the bypass cover to catch the pump mount screws. The centre mark is for the pressure pulse port.
I've used 3/8" aluminium plate that I had on hand, but 1/4" would work fine and is a lot less work. I would not go thinner than that because you won't be able to get many threads in it. 1/4" should give you 6 threads of the 10-24 screw which is just fine. There is an advantage to 3/8" though in that it fits the stock pump mounting screws for length.
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