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General Category => General Discussion => Topic started by: BigVic54 on July 19, 2016, 09:36:24 PM

Title: Gearbox removal
Post by: BigVic54 on July 19, 2016, 09:36:24 PM
Please help!

I'm removing the gearbox from my 1999 California sport.  Everything is disconnected but I can't get the bolt that goes under the gearbox out.  The nut is off and the bolt turns turns.  However, it doesn't screw out and I can't get it to pull out.

Any ideas?
Title: Re: Gearbox removal
Post by: guzzisteve on July 19, 2016, 09:51:58 PM
That's what they make hammers & punches for, don't hold back, hit it !!
Title: Re: Gearbox removal
Post by: pete roper on July 19, 2016, 10:16:22 PM
Don't forget to support the engine under the sump. When you remove the bottom gearbox bolt the stand will collapse.
Title: Re: Gearbox removal
Post by: pehayes on July 19, 2016, 10:47:23 PM
That's what they make hammers & punches for, don't hold back, hit it !!

Yes, but use a brass or aluminum punch so that you don't risk peening the threads on the end of the long bolt.  Wooden dowel maybe?

Patrick Hayes
Fremont CA
Title: Re: Gearbox removal
Post by: BigVic54 on July 20, 2016, 08:24:46 AM
That's what they make hammers & punches for, don't hold back, hit it !!

I've been using a BFH, (Big Freaking Hammer).  I was afraid I was missing some kind of internal bolt and holding back.  I'll attack it with renewed vigor.

Thank you
Title: Re: Gearbox removal
Post by: guzzisteve on July 20, 2016, 01:18:44 PM
If you look on the backside of casting where bolt goes through it is open, could be full of grunge, gravel, road tar etc.. Clean out and spray penetrating oil on around bolt, may help. To get it started out you might want to put nut on end of threads to wack it hard for 1/2", it'll help threads not to be peened.
Title: Re: Gearbox removal
Post by: v7john on July 20, 2016, 02:37:36 PM
I knock a bolt in the hole as the big mounting bolt comes out then, once it's out, I knock another one in the other side. This keeps all the centre stand mounting gear together and makes life easier later on.

I recently had the 'box out of my V7Sport and, apart from dealing with drum brakes and the business to do with the right hand shift, I expect the job is much the same on the Cali Sport. I did a couple of posts for my blog.
https://racingrhino.wordpress.com/2016/07/08/crabbing-the-frame-7-jul-2016/ (https://racingrhino.wordpress.com/2016/07/08/crabbing-the-frame-7-jul-2016/)
https://racingrhino.wordpress.com/2016/07/13/gearbox-clutch-shaft-oil-seal-replacement-13-jul-2016/ (https://racingrhino.wordpress.com/2016/07/13/gearbox-clutch-shaft-oil-seal-replacement-13-jul-2016/)
Title: Re: Gearbox removal
Post by: Tom on July 20, 2016, 03:50:06 PM
As state earlier start with the nut on the bolt to get some movement.  Spray penetrating lube.  Whack with punch and hammer.  Keep spraying.  Whack it from the bolt head too to loosen up stuff.  Whack it again from the thread side.
Title: Re: Gearbox removal
Post by: BigVic54 on July 21, 2016, 08:52:02 AM
Thanks for all the help.  I sprayed it with StrongArm, let it sit and it came out.

A happy ending.
Title: Re: Gearbox removal
Post by: Tom on July 21, 2016, 03:52:11 PM
Strongarm works well.  :thumb: