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Re: Inner driver shim set up 5 speed - follow up Posted by Cmyles [Email]  (#1126) [Profile/Gallery]
(more from Cmyles) on Tue, 22 Jan 2013 09:39:03
In Reply to: Inner driver shim set up 5 speed - follow up, scanav, Tue, 22 Jan 2013 08:20:44 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Remove the ring gear from the carrier and place the carrier in the case. Install the left hand inner driver assembly with no shims and torque the six bolts to 21 ft/lbs (I prefer to do this with the inner drivers removed from the housings but it can be done with them in place). Now install the right hand inner driver housing with no shims, oil the bearings and, while rotating the carrier, tighten the bolts in gradual stages to 19 INCH pounds (yeah, 19 INCH pounds). Measure the gap and add 0.008". That's the total thickness of the shim pack. Same procedure for either new or used bearings.
Next replace the ring gear on the carrier (torque the ring gear bolts to 40ft/lbs if they are 8 mm and 70 ft/lbs if they are 10 mm. I always put some med. strength loctite on them.) and re-assemble the unit. Split the shim pack between the left and right sides until you achieve ring gear backlash, measured with a dial indicator gauge at 90 degrees to a tooth face, of 0.005" to 0.009". Start with most of the shims on the right side so that you have lots of backlash and shift shims to the left side reducing the backlash until it's correct.
Finally, apply some transfer compound to the teeth and, while maintaining resistance on the ring gear, rotate it so the compound transfers and makes a pattern. Prussian blue is swell as transfer compound but if you can't get any yellow or white artists oil color works well and is easy to read. I've heard of guys using butter! You want to get an "ideal" pattern and that may require moving shims but use discretion, these aren't new gears and you aren't adjusting the pinion offset. Examine the wear pattern on the ring gear and think about replicating it with the transfer compound. An ideal pattern has the "contact patch" centered left-right, up-down on the tooth. Good luck!
, Tue, 22 Jan 2013 09:39:03 <-- Viewing This Message, Wed, 23 Jan 2013 11:21:54
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