Engines built after December 2000, use the following tools for accessory drive seal removal and installation: J 45533
seal remover, J 45833
seal installer, and J 45877
seal runout gauge adapter to verify proper installation of seal in accessory drive. These tools are part of toolset J 36024-D. See Figure
The seal, pulley and pulley nut are the only serviceable parts of the accessory drive assembly with the unitized oil seal.
Position two steel press plates under the ball bearing outer race. See Figure
Ball Bearing Removal
Whenever the needle or ball bearing is removed from the shaft, they MUST be replaced with new bearing assemblies.
Use a press to apply pressure to the top of the shaft and remove the ball bearing from the shaft.
Inspection of the Accessory Drive
Clean the accessory drive prior to inspection as follows:
Clean all of the parts with clean fuel oil.
To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 40 psi (276 kPa) air pressure.
Dry parts with compressed air.
Inspect the accessory drive as follows:
Inspect the driveshaft for damage.
Check the driveshaft for galling, pitting, cracks, or other damage.
If any damage is detected, replace with a new part.
Assembly of the Accessory Drive
Assemble the accessory drive as follows:
Place a new ball bearing on the accessory driveshaft. Use tool J 36024-1A part of J 36024C
and a press to install the bearing onto the shaft until it bottoms out against the shoulder of the driveshaft. See Figure
Install the snap ring to the accessory driveshaft making sure it is fully seated in the groove a full 360. See Figure
Snap Ring Installation
Place the needle bearing inner race on the accessory driveshaft. Use tool J 36024-1 part of J 36024C
and a press to install the bearing inner race to the shaft until it is tight against the shoulder. See Figure
On current design accessory driveshaft, the needle bearing inner race is incorporated into the shaft.
Lubricate the oil seal contact area of the accessory drive housing with a thin film of engine oil.
Install the accessory drive oil seal to the accessory drive housing using the seal installer, J 36024-4 part of J 36024C
, and a plastic hammer or fiber mallet. The oil seal must be installed flush to 0.25 mm (0.010 in.) below the face of the housing. See Figure
Accessory Drive Oil Seal Installation
Lubricate the oil seal with a thin film of engine oil.
Support the holding fixture, J 36024-3 part of J 36024C
on two steel plates and position the accessory drive housing into the hole in the fixture.
Measure sleeve and run out using J 45877
(part of toolset J 36024-D)
and a dial indicator. Total indicator deflection should not exceed 0.0762 mm (0.003 in.) for the sleeve and 0.1778 mm (0.007 in.) for the seal. If the run out is greater for either measurement, install a new seal. See Figure
1. Dial Indicator
2. Seal Sleeve
J 45877 Seal Run Out Gauge Adaptor
Install the accessory drive pulley to the shaft.
If necessary, use tool J 36024-1A part of J 36024C
, to seat the pulley on the shaft. If pressing is necessary, the opposite (gear) end of the shaft must be supported during the pressing operation.