TM 3-1040-276-10
3-7. REPLACING ENGINE HEAD ASSEMBLY (Cont).
b. Installation
Position spare engine head assembly (7) in engine head seat (8).
a.
b. Tighten engine head (7) by turning clockwise. Position air tube of flowjector (6) below metering jet (4).
Loosen flowjector if necessary so that air tube is in the 3 to 6 o'clock position.
c. Carefully screw air hose (5) onto flowjector (6) by hand.
d. Slide fuel tube (3) on metering jet (4). Be sure fuel tube fits tight and end is not split.
3-8. REPAIRING ENGINE HEAD ASSEMBLY.
a. Disassembly.
a. Unscrew and remove machine bolt (1), backstop washer (2), engine valve backstop (3), and engine
valve (4) from engine head (5).
If flowjector cannot be removed easily by hand, carefully use pliers and DO NOT bend air tube
out of line with fuel spray openings.
b. Unscrew and remove flowjector (6) from engine head (5).
c. Unscrew and remove metering jet (7) from flowjector (6).
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