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 (12), (13)
(14) figure 6-10) to surface L to obtain proper
discharge valve travel.
INTAKE VALVE TRAVEL:.
Intake valve travel must equal 0.013 0.002 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 (15, figure 6-10).
c. Add all or part of gasket (7) 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 equal 0.008 0.002 inch.
Obtain
head clearance as follows:
a.
Obtain result of B minus D plus thickness of gasket (7, figure 6-10).
b.
From result obtained in step a, subtract F.
c.
Add all or part of shim (21) figure 6-6, to surface G to obtain proper head clearance.
HEAD INSTALLATION:
To insure proper installation of valve plate (6, figure 6-10) to cylinder head (16) the dimensions of 2 minus 1 must be
equal to 3 within 0.002 inch.
To obtain measurement proceed as follows:
a. Measure from edge of cylinder head (16) to seating surface of valve plate (6).
b. Measure the thickness of valve plate (6).
c. Measure from edge of cylinder head (16) to seating surface of intake valve (5).
Figure 5-6. Fourth Stage Valve Travel and Head Clearance
5-44
