Perkins 1103 Disassembly And Assembly page 82

82
Disassembly and Assembly Section
Illustration 174
Heavy-duty idler gear assembly
Note: The new bearing assembly (16) is supplied with
a protective sleeve. Do not remove this protective
sleeve. The protective sleeve prevents the rollers
from falling out of the roller bearings.
4. In order to assemble the heavy-duty idler gear,
install the circlip (17) into the back face of the idler
gear (8). Place the back face of the idler gear
(8) onto a clean, flat surface. Insert the thrust
washer (18) through the idler gear (8) and onto
the circlip (17). Ensure that the flange face of the
bearing assembly (16) is toward the bottom and
that the protective sleeve is still in place. Insert
the new bearing assembly (16) into the idler gear
(8). Push the new bearing assembly (16) into the
idler gear (8) until the bearing assembly comes
into contact with the thrust washer (18). As the
bearing assembly (16) is pushed into the idler
gear (8) the protective sleeve will remain on the
top face of the idler gear. Discard the protective
sleeve. Install the thrust washer (15) and install
the circlip (14). Lightly lubricate the hub (12) with
clean engine lubricating oil. Press the hub (12)
into the idler gear (8).
Illustration 175
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Illustration 176
Illustration 177
5. Lift the assembly (9) of the idler gear and the
hub over the housing for the crankshaft front seal
(11) and insert the hub into the recess (10) in the
cylinder block.
Note: Ensure that the oil hole (20) is to the top of
the hub (12).
Note: Ensure that the marks (19) on the idler gear
assembly (9) align with the marks on the camshaft
gear and with the crankshaft gear. Refer to the
illustration 172.
6. Align the holes in the plate (7) with the holes in
the hub (12). Insert the setscrews (6) through the
plate (7) and into the hub (12).
7. Evenly tighten the setscrews (6) to a torque of
44 N·m (32 lb ft).
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