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General Category => General Discussion => Topic started by: snobear on November 07, 2023, 12:52:43 PM

Title: 1987 Cali II driveshaft
Post by: snobear on November 07, 2023, 12:52:43 PM
Couple of questions as I have not received my manual yet.  What is the driveshaft end clearance supposed to be.  As well the spline in the pic I assume should slide apart but this one is solid.  Just want to make sure before I go any further.

(https://i.ibb.co/F5MmmKs/IMG-7147.jpg) (https://ibb.co/F5MmmKs)
Title: Re: 1987 Cali II driveshaft
Post by: Don G on November 07, 2023, 01:44:26 PM
That spline coupler should just slide apart, likely rusted together. Show it a bit of heat from a propane torch, grease well upon assembly. As far as end play in the shaft, I have never worried about that, make sure that the pinion nut is up tight and that there is a wee bit of backlash in the pinion shaft. DonG
Title: Re: 1987 Cali II driveshaft
Post by: snobear on November 07, 2023, 02:00:46 PM
Thanks for the info, who knew there were two of us from Saskatchewan
Title: Re: 1987 Cali II driveshaft
Post by: Don G on November 07, 2023, 02:37:29 PM
Thanks for the info, who knew there were two of us from Saskatchewan
There may be a couple more, not many in such a large area. DonG
Title: Re: 1987 Cali II driveshaft
Post by: snobear on November 07, 2023, 05:01:09 PM
Well the good  news is the coupling finally came apart, the bad news the spline on the pinion shaft and that end of the coupling are toast.  There was also a bit of spalling on the outer bearing probably due to only one of the three splines sliding freely.
So I will need a pinion shaft bearings and a coupling.  Can the pinion be installed wwith the current crown gear which looks like new or do they need to be a set?

(https://i.ibb.co/nRhfRZG/IMG-7150.jpg) (https://ibb.co/nRhfRZG)

(https://i.ibb.co/yP5vjVX/IMG-7148.jpg) (https://ibb.co/yP5vjVX)
Title: Re: 1987 Cali II driveshaft
Post by: nc43bsa on November 07, 2023, 05:21:18 PM
General practice is that the ring and pinion are a set.  Mixing and matching invites problems.
Title: Re: 1987 Cali II driveshaft
Post by: guzzisteve on November 07, 2023, 06:03:51 PM
Sold in sets, matched to ea other.
Title: Re: 1987 Cali II driveshaft
Post by: John A on November 07, 2023, 10:27:50 PM
Do you have a pic of the toasted splines?
Title: Re: 1987 Cali II driveshaft
Post by: snobear on November 08, 2023, 08:20:23 AM

(https://i.ibb.co/CJxwpPF/IMG-7153.jpg) (https://ibb.co/CJxwpPF)

(https://i.ibb.co/1QCqh2M/IMG-7152.jpg) (https://ibb.co/1QCqh2M)
Title: Re: 1987 Cali II driveshaft
Post by: John A on November 08, 2023, 09:29:53 AM
Easiest fix is to find another bevel box.
Title: Re: 1987 Cali II driveshaft
Post by: bigbikerrick on November 08, 2023, 10:08:44 AM
Easiest fix is to find another bevel box.

And Driveshaft as well, by the look of those splines.
Rick D.
Title: Re: 1987 Cali II driveshaft
Post by: guzzisteve on November 08, 2023, 10:24:18 AM
I'd be looking at the ujoint also, my Cal2 came apart at 35K mi but I pull a sidecar. My shaft & coupler looked just like yours, I also swapped rear drives.
Title: Re: 1987 Cali II driveshaft
Post by: snobear on November 08, 2023, 10:36:39 AM
I ordered a ring and pinion set from MG Cycle as well as seals and bearings.  Looked for a replacement box but thought better to just rebuild as never sure what you get when buying a used box and they are hard to find I think.
The driveshaft has no wear at all.  The bad spline was just the pinion shaft and one end of the collar.
Universal joint is still nice and tight so should be good
Title: Re: 1987 Cali II driveshaft
Post by: John A on November 08, 2023, 01:36:32 PM
Do a search for Peter Ropers articles on rear drive boxes, there are two of them, I believe called Rear drive rant one and rear drive rant two.
Title: Re: 1987 Cali II driveshaft
Post by: snobear on November 08, 2023, 05:07:34 PM
Very well explained process for shimming the box, thanks for the link