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Fuel Pump Repair
To rebuild the fuel pump, start by ordering a Fuel Pump Kit. I got
mine from Gabe at Strasse (877 944-9911). This kit comes with a couple
of gaskets, the fuel pump screen, diaphragm assembly, coupling pin and
6 screws to mount the upper assembly to the lower.
The whole pump must be removed from the engine. It can not be repaired
in-place. A small piece of sheet metal must be removed to get access
from below the car to the lower mounting nut. Before removing the pump
from the engine, mark the pump body near the top bolt hole. These bolt
holes are not symmetric with the center line of the the pump. Marking
will help in reassembly.
Note the orientation of input fuel pipe which comes out in the same
direction as the top bolt hole. You will reassemble the same way.
Update
| I've been smelling gasoline for a couple of weeks. I found and wrote
up one problem where the gas tank vent
hose needed to be replaced. The smell persisted. Finally, today I
checked while the engine was running and noticed a small stream of gas
falling just below the fuel pump. It appears to be on the high
pressure side because it stops as soon as the engine stops. The plate
on the filter is tight.
The last tank of gas was 22 mpg - higher than average. The leak must
be getting worse because there was quite a bit of fuel coming out this
morning.
After removing the pump, the only thing that seemed to be a problem is
the screws holding the pump membrane could be tightened - in spite of
the lock washers under the heads . After tightening I dropped a bit of
locktite on each of the screw ends hoping they will stay in place
better than before.
After reinstalling the pump is now dry again with the engine running.
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Manual
The manual has several articles on the mechanical fuel pump.
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