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General Category => General Discussion => Topic started by: mtiberio on March 21, 2021, 05:59:41 AM

Title: proper way to install rear drive
Post by: mtiberio on March 21, 2021, 05:59:41 AM
After having pulled rear drives and swingarms about a million time during my 42 years of guzzi ownership, I have the following to offer...

If you want your rear axle (talking pre spine or CARC here) to easily come out or go in with only fingertip pressure do the following.

Install swingarm
Attach rear drive unit with the nuts loose
insert wheel and engage splines
Deal with brake, drum backing plate or caliper hanger
Run the axle through
(important stuff here):
tighten the axle nut first
then tighten the rear drive nuts
then tighten the pinch bolt

Why does this work? The rear drive studs in the swingarm have a bit of slop, by inserting the axle and tightening the axle nut, you draw up the entire wheel and rear drive assembly, and the pinch bolt area forces the axle (and rear drive) to be properly aligned. You should never have to hammer an axle. Similar tips for the front end exist, but there it gets trickier due to dampers or tapered tube tops etc.
Title: Re: proper way to install rear drive
Post by: Scout63 on March 21, 2021, 07:07:39 AM
Just in time for my rear drive installation. WG has gotten even better - answers appear BEFORE questions are asked.  Great info.
Title: Re: proper way to install rear drive
Post by: usedtobefast on March 21, 2021, 11:57:28 AM
So if a person did this the wrong (normal) way, what would happen or how would you know it?

My Quota has some driveline noise ... one post on here said their's sounded like a 70's dump truck and I thought "I know that sound!"  :grin:

I pulled the swing arm expecting to find all sorts of telltale signs of issues ... but everything looked great, no wear, nicely greased up, the support bearing in swingarm was in great condition, u joints seemed great ... put it all back together, still got that 70's dump truck sound.

Wondering if this could help. 
Title: Re: proper way to install rear drive
Post by: moto-uno on March 21, 2021, 10:53:58 PM
 ^ Let's just say that it's so easy to do , why wouldn't you ?  Peter
Title: Re: proper way to install rear drive
Post by: Kiwi_Roy on March 22, 2021, 06:56:04 AM
Thanks for those tips

For a CARC bike this simple bolt makes aligning the back wheel so much easier.
Just a MS bolt from your hardware store with the head cut off.
(https://i.ibb.co/TYN3YK2/Wheel-Mointing-Aid.jpg) (https://ibb.co/TYN3YK2)