7-13
7-34
NOTCH
VALVE LIFTERS
Visually check the lifter for wear on the cam contact
surface, the cylinder contact surface and push rod contact
surface. If any damage is noted replace the lifters.
(Illust. 7-34).
CYLINDER COVER
Specification English Std. Metric
Main Bearing Diameter 1.625 41.313
1.627
Cylinder and PTO 1.627 41.325
Clean and inspect the cover, looking for wear and scoring
of the bearing surfaces. Measure the bearing surface
diameters using a telescoping gauge and check the
specifications for worn or damaged parts. Replace as
necessary.
When reinstalling the cover, apply a drop of Loctite 242
to the cover screw threads and torque the cover screws
to 250 inch lbs. (28 Nm). Always install a new gasket
once the seating surface has been broken.
7-35
CRANKCASE BREATHER
The crankcase breather is located on the number one
(lowest) cylinder side. It consists of a cover, cover gasket,
breather element, reed valve and a limiter plate. The
breather cavity may be cleaned with solvent. Inspect the
reed plate for sealing. If an .003” (.076 mm) air gap
exists between the reed plate and the cylinder boss, the
reed plate must be replaced. When installing the reed
plate the notched corner must face the cylinder head
side of the engine. (Illust. 7-35) The cover plate mounts
onto the cylinder with the outside lip facing out.
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