Generac Power Systems OHVI GSH 220 Service Manual page 41

CRANKCASE
COVER BOLTS
OIL PICKUP
ASSEMBLY
OIL PUMP
OUTER ROTOR
Figure 9-14. Reassembly of Crankcase Cover and Oil Pump
Figure 9-15. Location of Oil Pump Drive Pins
2. Carefully install the crankcase cover. Align the cover with
dowel pins on the crankcase flange, as well as with the
crankshaft and camshaft. Make sure the cover gasket is
on. Rotate the crankshaft to align the oil pump inner and
outer rotors. The cover should fall easily into place. DO
NOT FORCE.
. Install the crankcase cover bolts and torque (see Figure
9-6). Refer to Section  for torque specifications.
OIL PUMP
INNER ROTOR
CRANKCASE
GASKET
Figure 9-16. Crankcase Cover Bolt Tightening Sequence
. After tightening the crankcase cover bolts, make sure the
crankshaft turns freely.
oPTIoNAl oIl FIlTer
The optional oil filter is a "spin-on" type. An oil filter adapter
is bolted to the oil filter pad. When installing the oil filter,
coat the filter seal with engine oil. Then install the filter and
tighten until its seal contacts the filter adapter. After the filter
seal contacts the adapter, tighten / to  turn more. (See
Figure 9-7)
OIL FILTER
ADAPTER
GASKET
OIL FILTER
ADAPTER
BOLT
Figure 9-17. Optional Oil Filter
9-7
SeCTIoN 9: lubrICATIoN SYSTeM
OIL FILTER
PAD
OIL FILTER
ADAPTER
OIL FILTER
9