TM 10-3950-672-24-2
Valve Springs Inspection
Measure the valve spring.
Limits
Approx. Free Length (L): 55.63mm [2.190 in.]
Maximum Inclination: 1.Omm [0.039 in.]
Check the valve spring tension.
A minimum load of 289.32 N. [65.0 72.2 lb] is required
to compress the spring to a height of 49.25mm [1.94
inches].
Cylinder Head Assembly
Note: Clean all cylinder head components before
assembling.
Install the valve stem seals.
Note: The intake and exhaust seals are the same.
Lubricate the stems with SAE 90W engine oil before
installing the valves.
5-255