The Triumph Dolomite Club - Discussion Forum

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PostPosted: Mon Mar 16, 2009 4:02 pm 
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Is it possible to separate the CV joints on the early props?

Wanted to fit a new centre bearing, but cannot fathom how to separate the two halves.

Am I just better off getting it done somewhere, and if so where is best? Or should I revert to the UJ only type. Simpler I guess. Anyone got a spare?

Helpfully, none of the manuals show the CV joint anywhere only the Hardy Spicer UJ's.


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PostPosted: Mon Mar 16, 2009 4:21 pm 
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I've one of each type in stock, carrier condition unknown. Can't look before Saturday.

Beer money.

Tin

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PostPosted: Mon Mar 16, 2009 6:23 pm 
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Right its CV joint for the sprint and spiders for the 1850 down.

You need a specialist to seperate the CV joint IIRC cos you have to cut the collar off that holds the boot. I did this with a hacksaw about 10 years ago and the prop is still in 2 bits in my shed...I found another one.

Propshaft Services in Feltham do them...sure you something similar in Guildford area...

Jonners

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PostPosted: Mon Mar 16, 2009 7:35 pm 
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Location: Caithness, Scotland
Quote:
Is it possible to separate the CV joints on the early props?
Yes.

Quote:
Wanted to fit a new centre bearing, but cannot fathom how to separate the two halves.

Am I just better off getting it done somewhere, and if so where is best? Or should I revert to the UJ only type. Simpler I guess. Anyone got a spare?

Helpfully, none of the manuals show the CV joint anywhere only the Hardy Spicer UJ's.
It was a long time ago but, I have successfully replaced a Sprint centre mounting. You only need to separate the CV joint next to the mounting.
Indeed the BL manual does not explain how to do this. However someone in the Dolomite Sprint Register wrote an article explaining how to do the job so I followed his instructions. I still have that article somewhere (in fact I have every copy of DSR news....quite sad really :D ).
If nobody posts the answer I'll look for the article on Wednesday and let you know then.......


Wasn't there a thread on this very subject last year?

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PostPosted: Mon Mar 16, 2009 8:14 pm 
I did mine;
scribe mark along prop, hold front half of prop in vice, smack cv part of prop with copper hammer several times untill it pops out & seperates, replace centre bearing, align scribe marks, tap cv joint back together. Easy !


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PostPosted: Mon Mar 16, 2009 8:28 pm 
Does anyone know of a source for a new rubber boot for the CV joint?

Front wheel drive CV boots can't handle the speed (wheel speed is only around 25% of tailshaft speed) and everyone that we have tried has exploded once road speed exceeds around 160KPH.

Mark


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PostPosted: Mon Mar 16, 2009 8:29 pm 
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Thanks Roy, will give that a try tomorrow.

I want to keep the original item if at all possible.


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PostPosted: Mon Mar 16, 2009 10:28 pm 
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I did mine a few weeks ago. Pretty easy to be honest.

Start by working an old screwdriver under the crimped down collar. Lever the collar over the snap ring.

Pull it back....a greasy world lives inside the boot. Feel around just inside the lip and you'll find another snap ring hiding in the grease. Prize this out.

Now the male part will come out but have a bucket ready to catch the balls!!

Remove balls and cage. The male spline is held on by a snap ring (bit like a car CV joint). The unorthadox removal method is to whack this off the snap ring...no other method works and this is the right way.

Now you can change the centre bearing and refit in reverse order. I cleaned mine out with rags and carb cleaner. It was repacked with graphite grease and the old CV boot was in perfect condition. As I change the UJ's as well, I took the propshaft to Dave MAC in Coventry who balanced it for £30.

Get stuck, just give me a shout.
Tom


Attachments:
File comment: Note snap ring on the splines (not the O ring). You need to whack the male CV joint part off this.
DSC00114.JPG
DSC00114.JPG [ 96.59 KiB | Viewed 2900 times ]
File comment: Gently prize the collar off the external snap ring.
DSC00112.JPG
DSC00112.JPG [ 80.95 KiB | Viewed 2640 times ]

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PostPosted: Mon Mar 16, 2009 11:16 pm 
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Excellent. Will be giving this a go tomorrow.

Thanks for the pics


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PostPosted: Mon Jul 06, 2009 10:17 pm 
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Quote:
Does anyone know of a source for a new rubber boot for the CV joint?

Front wheel drive CV boots can't handle the speed (wheel speed is only around 25% of tailshaft speed) and everyone that we have tried has exploded once road speed exceeds around 160KPH.

Mark
Dave Mac Props in Coventry have recently made me a new custom prop for the quicksprint using a ford sourced 'pop' joint which closely resembled the OE and a new centre carrier which they have had remanufactured to OE spec.


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