Generac Power Systems GTV99O Service Manual page 50

SECTION 10: CYLINDER & CRANKCASE COVER
INSTALL PTO OIL SEAL:
lnstalla new fio oilsealand press itin und h is 1.5mm(l/16")
below the mounting surface.
CHECK CAMSHAFI BEARINGS
lJse a telescoping gauge and caliperto check camshaft beaF
ings. lf camshaft bearings are woTn, crankcase or crankcase
cover must be replaced. (Forveatical shaft engines, the gero-
Mag Bearing Reject Dimension: 20-06mm (.790")
PfO Beafing Rejed Dimension: 18.06mm (7rr')
O]L SEALS:
Always installnew oil seals whenever engine i5 dlsaslembled
for major servicinq or when repai ng bearings, Lub cate 5eal-
ing edge of oil seal with clean engine oil before assembly.
Alw;ys use the correct seal protectorto prevent damaging oi
seal.
Figurc 10-11. Chec*ing Mag Side Camshaft Beaing
Figurc 10-10. Che&ing PfO Side Canshaft Beaing
I0-4