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#Post#: 440--------------------------------------------------
Fuel Lift Pump rebuild - Thanks Jackual NZ
By: FenTiger Date: January 5, 2012, 7:02 am
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Weather was crap today, decided to rebuild an AC fuel pump which
has been kicking around.
Ive taken the photos in a step by step strip down and rebuild,
sorry in advance if there the wrong size :oops:
No boingy gayness in this thread :wink: .
Ok, to kick off heres the pump as taken off the engine; (I think
its two 1/2" AF nuts and the fuel unions to remove).
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0019.jpg
First i cleaned off much of the crap using petrol, then dried
off and removed the glass sediment bowl;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0020.jpg
Next i unscrewed the six slotted screws holding the top and
bottom castings together, i used a button mushroom tray to hold
the parts in so i dont lose nowt, you can use other mushroom
trays if you like :wink:
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0021.jpg
Mines been sitting around for a bit and is a tad :roll:
corroded inside;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0024.jpg
I'll sort that out later.
Back to the base with the diaphragm, just 1/4 of a turn and it
should detatch from the rocker lever inside, then pull the
diaphragm up and out. It may snag on the seal abit but shouldnt
damage it, Im replaceing the seal so wasnt too worried. the
diaphragm i may reuse as its quite supple still, if there split
or hard then its replacement time.
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0025.jpg
Then i hooked a screwdriver and pried the seal and retainer out.
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0028.jpg
Thats where im up to now;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0026.jpg
Ill continue tommorow/ tonight, ill bring the castings & camera
to work and bead blast them to remove that corrosion.
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Carrying on from the last installment;
I got a new diaphragm, the right one this time;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0017.jpg
Put the spring under the diaphragm, and fit it into the bottom
casting with the cam lever, 1/2 a turn and pushing down should
see it engage, sometimes its quite tricky (especially if the
pump is in place on the engine);
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0018.jpg
Next i fitted the six screws that hold the top and bottom half
together, noting that the smallest screw;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0019-1.jpg
Fits at the back, in the empty hole as shown;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0020-1.jpg
I then tightened these screws finger tight, pumped the primer
lever a few times, then tightend the screws up with a screw
driver.
Nearly done now, just the sediment bowl, filter, saddle and
gasket to fit;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0021-1.jpg
I fitted the gauze filter first, its quite tight around the
inlet stump in the center, then followed by the gasket;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0022-1.jpg
Then i just fitted the glass sediment bowl and saddle,
tightening up the thumb screw;
HTML http://i8.photobucket.com/albums/a1/hey124/RIMG0023.jpg
Thats pretty much it, just refit to the engine using a new
gasket, refit the fuel unions, pump the primer and watch the
fuel flow.
Simples.
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