Onan CCK Series - Maintenance and Repair Continued; Oil Seal Replacement Procedures; Crankshaft Journal Inspection

66
MAINTENANCE AND REPAIR
• I
. EXCEPTION: FLANGED BEARING IS
USED PRIOR TO SPEC. F.
INSTALL WITH CUT-OUT TO
TOP
AND REAR OF' ENGINE
REAR
CAMSHAFT
BEARING
EXCEPTION-EARLIER ENGINES 8
DO NOT HAVE OIL HOLE IN BORE.
I
FIG. 46 - BEARING INSTALLATION
OIL SEALS. -
The gear cover mustbe removed to replace its oil seal.
Drive the old seal. out from the inside of the gear cover.
The bearing plate must be removed to replace its oil seal. Drive the
oil seal out from the inside.
»
When installing the gear cover oil seal, tap the seal inward until it is
3.1/32 of an inch from. the mounting face of the cover.
When installing the bearing plate oil seal, tap the seal into the bearing
plate bore to bottom against the shoulder in the plate bore. After the
sealis in place, it is advisable to apply a thin coating of shellac or
Permatex around the outer surface of the seal at the point where it comes
in contact with the bearing plate hoss,' Use.a seal expander, or place
a piece of shim stock around the end of the crankshaft, when replacing
the bearing plate tb avoid damaging the seal. Remove the shim'Stock .
as soon as the plate is in place.
LOC.{'~~NRJNG 7" H
PRECISION TYPE- DO NOT ----ACiGNHOLE'iNBEARING -o*$&fj"\..:tJF~M
LINE REAM OR BORE. -WITH HOl..E IN BEARING BORE ~ '- g~D~
CRANKSHAFT BEARING ,FRONT CAMSHAFT BEARING
FIG. 47 - OIL SEAL INSTALLATION
CRANKSHAFT. - Inspect
the bearing journals. If they are scored and
can not be smoothed out by dreSSing down, the
bear-
ing journals should be refinished to use 0.002" or O. 020" underSize .
bearings or a new crankshaft should be installed. If a worn main bear-
ing journal can not be fitted with an available precision type underSize