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Appetite
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08.21.2009, 06:52 PM

Hi folks,
I need some help assembling my Hybrid diffs and figured I would post in this thread..

I am in the process of assembling the differentials, but are having problems with the mating of the ring and pinion gear.
The ring gear / carrier assembly seems to be a little crooked no matter what I do, so when I install the completed differential into the diff cases, there is a tight spot when turn the pinion by hand.
I have inspected the mating surfaces of the ring and carrier for burrs and debris, but the result is the same. I also tried aligning the screw holes in the ring gear to different holes in the carrier, but that didn't help either.

What do I need to do to fix this?

Both of the differentials are also leaking a little oil through the output shaft on the non ring gear side. I took them both apart and and reassembled them, but the leak is still there. Is this normal? Maybe I need new O-rings, but it seems strange that both diffs have a leakage on the same side, while the ring side of both diffs do not, no?

This is my first time building 8th scale diffs, so I am not sure what is acceptable and what is not..
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simplechamp
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08.23.2009, 03:50 PM

Quote:
Originally Posted by Appetite View Post
The ring gear / carrier assembly seems to be a little crooked no matter what I do, so when I install the completed differential into the diff cases, there is a tight spot when turn the pinion by hand.
I have inspected the mating surfaces of the ring and carrier for burrs and debris, but the result is the same. I also tried aligning the screw holes in the ring gear to different holes in the carrier, but that didn't help either.
I am having this same issue. When I first got the diffs they were wobbling quite a bit. I emailed Mike and he said take them apart and re-assemble. I did and it seemed to fix the issue (but this was without putting the screws back in, just pressing the pieces together snuggly). Then when I put the screws back in they got crooked again. I think the screws are causing the diff cases to warp maybe? I'm not overtightening them, just making it so the screws sit flush in the countersink of the ring gear. Whatever it is the screws are causing it, because without the screws the ring gear sits perfectly level on the diff cup (at least for me)

I haven't filled mine with oil yet so I can't comment on the leaking. Somehow the O-ring isn't completely sealing I would guess?

I'm not sure what to do about the diff cases not lining up and causing a wobble. I wonder if it's a bad batch of diffs? The cases weren't molded exactly right? There's got to be a way to fix the issue. Maybe Mike can comment on what the best idea is to try to remedy the problem.

My V3 have just been sitting because I was gathering all the stuff I need for the install, so over the next week I'll sit down and play around a little more trying to get the rings gears to sit properly and not wobble.

Last edited by simplechamp; 08.23.2009 at 03:53 PM.
   
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