Onan NHE Service Manual

PRODUCE CROSS HATCH SCRATCHES
FOR FAST RING SEATING
AVOIDTHIS FINISH
CT-1091
FIGURE 9-30. CROSSHATCHING
BEARINGS
Removal of the camshaft or crankshaft bearings
requires complete disassembly
of the engine. Use a
combination main and cam bearing removal tool and
a press to drive out the bearings. Support the casting
to avoid distorting or damaging the bearing bores.
Camshaft Bearings
Replacement camshaft bearings are precision type
and do not require line reaming or line boring after
installation. Coat the bearing with lubricating oil.
Position the front bearing
so the oil hole in the bear-
ing isaligned with the oil hole (see Figure9-31) in the
block. Position the rear bearing
so the elongated slot
is aligned with the breaker point plunger hole in the
top of the block.
IN- BEAiNG BORE M-I474
FIGURE 9-31. CAMSHAFT BEARINGS
Use the combination main and cam bearing driver
and a press to install the front and rear cam bearings.
Push in the bearings to the depth allowed by the
flange on the driver.
Crankshaft Bearings
New crankshaft main bearings are precision type
which do not require line reaming
or line boring after
installation. They are available in standard size,
0.002,0.010,0.020 or
0.030 inch undersize.
hole(s)
in the bearing bore. The oil passage must be
at least 1/2 open.
Rear Bearing: Use the combination main and cam
bearing driver and a press
to install the rear main
bearing. Push the bearing into the bearing plate from
the inner side (see Figure
9-32) to the depth allowed
by the flange on the driver.
REAR BEARING END PLATE
LOCK
PIN
IOLES
BEAR
PRECISION TYPE-
DO NOT LINE REAM OR BORE
M-1475
FIGURE 9-32. REAR BEARING
-
Front Bearing: Locktite Bearing Mount is used when
installing the front bearing (see Figure 9-33). Use the
towelette furnished with the bearing kit
to clean the
outside
of the bearing and the bearing bore in the
FRONT MAIN
NOTE: Do not add additional
thrust washer when replac-
BEARING BORE
ing front bearing.
/
e
FRONT
MA IN - BE A R IN c
9 PRECISION TYPE-
DO NOT LINE BORE OR REAM OR BORE
8-1476
For putting in either the front or rear main bearing,
always align the oil hole(s) in the bearing with the
oil
9-1 5
FIGURE 9-33 FRONT BEARING
Redistribution or publication of this document
by any means, is strictly prohibited.
Redistribution or publication of this document
by any means, is strictly prohibited.

Onan NHE Specifications

General

Brand	Onan
Model	NHE
Category	Portable Generator
Language	English