Fuel Pump - TM-5-4320-248-150084

NOTE: WHEN STARTING A PULSA-JET ENGINE FOR THE FIRST TIME,

IT W-ILL BE NECESSARY TO PRIME THE SUPPLY CUP, SINCE FUEL

FROM THE TANK WILL NOT AUTOMATICALLY FLOW INTO THE CUP.

TO PRIME, CLOSE THE CHOKE VALVE AND PULL THE STARTER CORD

AT LEAST THREE TIMES.

5.2.2.5 F u e l P u m p .

To Replace Pump Diagram.

5.2.2.5.1

Remove pump from cylinder and then remove four screws to separate pump

head from pump body.

With a narrow punch, drive lever pin out until pump lever is loose. Pin

may then be driven in either direction, but need not. be removed entirely.

Remove old diaphragm, but leave diaphragm spring in pump body.

Place new diaphragm into pump body with the slot in shaft at right angles

to the pump lever. Diaphragm spring should fit into the cup under the dia-

phragm. Without the lever spring, insert the pump lever into body holding

the diaphragm down. Fit the hook at the end of lever into the slot in dia-

phragm shaft.