TM 5-4310-343-35
DISCHARGE VALVE TRAVEL:
Discharge valve travel must equal 0.019 0.002 inch.
To obtain discharge valve travel proceed as follows:
a. Obtain result of M minus K.
b. Adjust this result by adding spacers (13), (14),
(15) figure 6-9 to surface L to obtain proper
discharge valve travel.
INTAKE VALVE TRAVEL:
Intake valve travel must equal 0.025 0.002 inch.
To obtain intake valve travel proceed as follows:
a. Obtain result of C minus D.
b. From result obtain in step a, subtract measured
thickness of spring (4, figure 6-9 ).
c. Add all or part of gasket (3), to surface E to
obtain proper intake valve travel.
HEAD CLEARANCE:
Plunger must be at top dead center when establishing dimension F.
Head clearance must be equal to 0.013 0.002 inch.
Obtain head clearance as follows:
a. Obtain result of B minus D plus thickness of gasket (7, figure 6-9 ).
b. From result obtained in step a, subtract dimension F.
c. Add all or part of shim (16) figure 6-6, to surface G to obtain proper head clearance.
HEAD INSTALLATION:
To insure proper installation of valve plate ( 6, figure 6-9 ) to cylinder head (16) the dimension of 2 minus 1 must equal 3
within 0.001 inch.
To obtain measurement proceed as follows:
a. Measure from edge of cylinder hea d (16) to seating surface of valve plate (6).
b. Measure the thickness of valve plate (6 ).
c. Measure the edge of cylinder head (16) to seating surface of Intake valve (5).
Figure 5-5. Third Stage Valve Travel and Head Clearance
5-43
