Idler Gear: Assembly
- Clean the components with a suitable solvent and use compressed air to dry all parts. Perform the following before assembly:
- Inspect idler gear for damaged or excessively worn teeth.
- Inspect the idler gear shaft for damage or wear.
- Use Pinion Bearing Cup Replacer to press the new bearing cups into the idler gear.
- Install a new (A) idler gear bearing onto the idler gear shaft, then install the (B) idler gear, (C) spacer, and the other new (D) idler gear bearing.
- Use Torque Adapter to secure the idler gear shaft in the vise.
- Use (A) Mainshaft Locknut Wrench along with a (B) 1-5/8 inch socket and install the idler gear shaft nut.
- Apply Motorcraft MERCON® Multi-Purpose Automatic Transmission Fluid XT-2-QDX or equivalent meeting Ford specification MERCON to a new idler gear shaft seal and install it on the idler gear shaft.
- Idler gear shaft seal inner diameter: 40.5 mm (1.594 in).
- Measure the idler gear shaft preload.
- Turn the idler gear and Torque Adapter over and secure the idler gear in a vise. Measure the preload when the idler gear shaft begins to rotate.
- If the specified preload cannot be obtained within the specified idler gear shaft nut torque, adjust it by selecting the proper spacer from the table below.
Fig 2: Installing New Idler Gear Bearing Onto Idler Gear Shaft, Then Installing Idler Gear, Spacer & Other New Idler Gear Bearing
CAUTION:
Use protective vise plates to prevent damage to the special tool.
CAUTION:
Use protective vise plates to prevent damage to the idler gear.
NOTE:
Take several measurements and calculate the average value.
NOTE:
The preload can be reduced by increasing the thickness of the spacer (adjusting shims).