I couldn't find an off the shelf puller that would work with the flange but I did find a race installation tool that fits the inner axle so I have something to push against. I ended up getting the local metal fab shop to water jet me a 1/2" plate with a 5x118mm lug pattern on it. They have it done but I can't get it until Friday when I finally get a chance to go by there and give them the measly $35 they charged for a job like that. I really lucked out living in the same county as one of the biggest metal fabrication companies on the East Coast. I'll update this weekend once I pick this adapter up and attempt to swap flanges. Wonder what the next problem will be...
-
Welcome, Guest! We hope you enjoy the excellent technical knowledge, event information and discussions that the BMW MOA forum provides. Some forum content will be hidden from you if you remain logged out. If you want to view all content, please click the 'Log in' button above and enter your BMW MOA username and password. If you are not an MOA member, why not take the time to join the club, so you can enjoy posting on the forum, the BMW Owners News magazine, and all of the discounts and benefits the BMW MOA offers?
Is my final drive going bad?
- Thread starter w_statik
- Start date
The part I had made worked really well. For the record though, either the lug spacing is more than 118 mm or they made it slightly small. I expect it's actually 120mm. I didn't measure but so carefully. But I got both hubs pulled off pretty easily.
Edit: I just went out and measured it to see if it was as I requested and now I am all confused. Multiple big sites like tirerack and discount tires provide guides that say to measure the lug spacing on a 5 lug hub you go from the center of one to the inside edge of the second lug from the first. I measured that on the hub on the motorcycle and got 118mm. I measure the hub on the bench and the adapter I got and I get 109mm and 106mm respectively measuring the same way. Really not sure what the error is here. I cannot figure out what the shop's error may have been or what my error could have been. Obviously it's more likely my error because I likely measured incorrectly the first time. But how did I get off by 10mm? Why is the part I had made at 118mm diameter (centers of the holes) less than 5mm off of where it needs to be if I measured 10 mm off? The farthest hole is less than 2mm off. Really don't know what to make of it. I think I'll bring the hub and the part and the calipers by the shop and see what they think.
Edit: I just went out and measured it to see if it was as I requested and now I am all confused. Multiple big sites like tirerack and discount tires provide guides that say to measure the lug spacing on a 5 lug hub you go from the center of one to the inside edge of the second lug from the first. I measured that on the hub on the motorcycle and got 118mm. I measure the hub on the bench and the adapter I got and I get 109mm and 106mm respectively measuring the same way. Really not sure what the error is here. I cannot figure out what the shop's error may have been or what my error could have been. Obviously it's more likely my error because I likely measured incorrectly the first time. But how did I get off by 10mm? Why is the part I had made at 118mm diameter (centers of the holes) less than 5mm off of where it needs to be if I measured 10 mm off? The farthest hole is less than 2mm off. Really don't know what to make of it. I think I'll bring the hub and the part and the calipers by the shop and see what they think.
Last edited:
Bought a floor press today and got the flange pushed on to the new final drive. Put about 185ml of fluid in it and bolted everything together. The rotor turns much more straight now but I can still see the caliper wiggling back and forth just a little. Maybe this will improve with some pad wear? No idea why it's not perfectly straight now. When the flange was off I put the bike in first and ran it and the final drive output definitely appeared perfectly straight. Anyway, went ahead and went for the test ride and it it rides great. No leaks coming off the final drive, no noise, no vibration. I think I'm just going to roll with it.
