TM 5-4310-343-35
DISCHARGE VALVE TRAVEL:
Discharge valve travel must equal 0.017 0.002 inch.
To obtain discharge valve travel proceed as follows:
a. Obtain result of M minus K.
b. Adjust this result by adding all or part of gasket
(10, figure 6-8 ) to surface L to obtain proper
discharge valve travel.
INTAKE VALVE TRAVEL:
Intake valve travel must equal 0.018 0.003 inch.
To obtain intake valve travel proceed as follows:
a. Obtain result of C minus D.
b. From result obtained in step a, subtract
measured thickness of spring (14, figure 6-8)
c. Add all or part of gasket (12, figure 6-8) to
surface E to obtain proper intake valve travel .
HEAD CLEARANCE:
Piston must be at top dead center when establishing dimension F.
Head clearance must equal 0.081 0.004 inch.
Obtain head clearance as follows:
a. Add dimension F to intake valve travel.
b. Add all or part of shim (11, figure 6-6) to surface G to obtain proper head clearance.
HEAD INSTALLATION:
To insure proper installation of valve plate (11, figure 6-8 ) to cylinder head ( 8 ) the dimensions of 2 minus 1 must equal 3
within 0.001 inch.
To obtain proper measurements proceed as follows:
a. Measure from edge of head (8) to seating surface of valve plate (11).
b. Measure the thickness of valve plate (11).
c. Measure from edge of head (8) to seating surface of intake valve (13).
Figure 5-4. Second Stage Valve Travel and Head Clearance
5-42
