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TM 10-4320-311-14
Figure 6-13. Cam and Tappet
CAUTION
Keep the Intake and exhaust tappets separate and return into same location at reassembly.
h.
Check the outer surface of the tappet (2) for wear and damage. Replace if defective.
i.
Check that the tappet stem (2) OD for the intake and exhaust valves is greater than 0.271 inch (6.87 mm).
Replace tappet if the stem is under wear limit.
j.
Check that the hole diameter in the cylinder block for the intake and exhaust valve tappets is less than 0.278
inch (7.06 mm). Replace cylinder block if hole diameter exceeds wear limit.
k.
Check that the OD of the tappet for the fuel injection pump is greater than 0.941 inch (23.89 mm). Replace
tappet if OD Is under the wear limit.
I.
Check that the hole diameter in the cylinder block for the fuel injection pump tappet is less than 0.947 inch (24.06
mm). Replace cylinder block if hole diameter exceeds wear limits.
m.
Check for damage or worn camshaft gear. Replace if required
INSTALLATION:
CAUTION
Keep the Intake and exhaust tappets separate and return into same location at reassembly.
a.
Insert the intake and exhaust valve tappets into the cylinder block.
b.
Refer to Figure 6-14. Insert the camshaft assembly (1) into the cylinder block.
c.
Refer to Figure 6-15. Align timing marks on the cam gear (1) and crank gear (2).
6-16
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