INSTALL PTO OIL SEAL:
Install a new PTO oil seal and press it in until it is 1.5mm (1/16”)
below the mounting surface.
CHECK CAMSHAFT BEARINGS
Use a telescoping gauge and caliper to check camshaft bear-
ings. If camshaft bearings are worn, crankcase or crankcase
cover must be replaced. (For vertical shaft engines, the gero-
tor cover must be replaced).
Mag Bearing Reject Dimension: 20.06mm (.790”)
PTO Bearing Reject Dimension: 18.06mm (.711”)
Figure 10-10. Checking PTO Side Camshaft Bearing
Figure 10-11. Checking Mag Side Camshaft Bearing
OIL SEALS:
Always install new oil seals whenever engine is disassembled
for major servicing or when repairing bearings. Lubricate seal-
ing edge of oil seal with clean engine oil before assembly.
Always use the correct seal protector to prevent damaging oil
seal.
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