Figure 11D-16. Installing Front End
Figure 11D-17. Installing Bearings
in End Plate
Plate
4. Position the end plate cover over the
numbered end up, straight on one of
end plate dowel pins, with the large hole
the rotor shafts.
in the cover toward the top of the end
Then push the cover against the
B. Place installer J 6270-4 on top of the
plate.
bearing and tap the bearing on the
Install the ten bolts and lock
end plate.
shaft and into the front end plate as
Tighten the bolts to 13-17
washers.
lb-ft (18-23 Nm) torque.
shown in Figure 11D-17.
5. Install the ball bearings on the rotor
C. Install the second roller bearing on
the remaining rotor shaft in the same
shafts and in the rear end plate as fol-
lows:
manner.
A. Reverse the position of the blower
D. Place the bearing retainers on top of
the bearings and the end plate. Then
housing on the two wood blocks (see
install the retainer bolts and lock
Tighten the bolts to 7-9
washers.
Ib-ft (9-12 Nm) torque.
B. Insert the two fillister head screws
through the rear end plate and thread
2. Start the end of the water pump drive
Tighten the
them into the housing.
to
5-10
lb-ft
(7-14
Nm)
coupling straight into the left hand helix
screws
Then place a clean shop
Do not use lock washers on
rotor shaft.
torque.
these screws.
towel between the blower rotors to pre-
vent them from turning.
Install the
C. Lubricate one of the ball bearings
drive coupling retaining bolt and draw
Start the bearing
with engine oil.
the coupling and slinger tight against
numbered end up, straight on one of
the end of the shaft. Then tighten the
the rotor shafts.
bolt to 18 lb-ft (24 Nm) torque.
3. Affix a new gasket (32) to blower
front end plate cover (38).
11D-12
