Section 4 – 2
Azalea Aviation Copyright 2014
Drive Gear Installation:
The distributor drive gear and slinger need to be installed before the accessory
housing. This assembly is made up of four pieces and need to be in the right order
and orientation. The photos below show the order and the assembled unit. (Fig 1)
Use a large socket or pipe to lightly drive these pieces over the crankshaft end.
The order is…eccentric, spacer, gear, and slinger (facing out). Some engines may
be equipped with the wider spacer that eliminates the concentric and small spacer.
(Fig 1b) Be sure the woodruff keys are installed properly onto the crankshaft prior
to installation.
Fig 1. Rear gear parts installed on the crankshaft Fig 1b.
Housing Installation
Apply an even coat of copper spray on both sides of the rear gasket. Once it is
tacky install onto the case. Slide the Accessory housing on and tap into place with
the rubber hammer. Check to see that it has seated all the way around before
installing the hardware. Apply a dab of Loctite onto the threads of the 4 long and 2
short bolts prior to installing them. (Do not install the bolt at the 4 o’clock position
yet. Install three of the four washers and 3/8 nuts onto the studs. Leave the left
one open. (Fig 2) Torque the hardware to the proper specifications. (13 ft/lbs)
