Lotus Elan

Sue Miller CV boot replacement - advice please

PostPost by: RichardS » Mon Feb 18, 2019 5:20 pm

I need to replace both boots on one side. I did replace one on the other side a while ago but can’t quite remember how I did it!

If I remove the 3 socket head bolts that the boot attaches through at the diff end is it then possible to free the inboard end of the drive driveshaft enough to change the boot? Or do you need to disconnect the outer A frame to swing the rear suspension out? Finally can you slide the outboard boot down the shaft from the diff end or does the whole driveshaft need removing?

I do remember it was easier to do with the driveshaft fairly horizontal, rather than at droop.

Thanks

Richard
Lotus Elan Sprint FHC 1973
User avatar
RichardS
Third Gear
Third Gear
 
Posts: 406
Joined: 23 Apr 2007
Location: Wirral, UK

PostPost by: Hawksfield » Tue Feb 19, 2019 8:13 am

Hi Richard
If you need to change both boots on one shaft it would be best to remove the shaft complete as the cv has to be removed to pull off the boot after removing the circlip.
The A frames do not need to be removed
If the boots are split there is good chance that there is an ingress of grit and water, re greasing the joints is easier on the bench
Good luck
Regards

John

+2s130 1971
User avatar
Hawksfield
Third Gear
Third Gear
 
Posts: 361
Joined: 14 Jul 2004
Location: Hartlepool Teesside

PostPost by: Grizzly » Tue Feb 19, 2019 11:05 am

As above......

We've just had to fit a set of boots on a pair of kelvedon cv shafts (i believe they are very similar to Sue Millers), it's possible to do in situe but for what it takes to remove and refit the whole shaft it's easier to do the job on a bench.

We also noticed the shafts had been weeping between the CV and adapter plate pre boot replacement so we put a small bead of RTV between during assembly, the Allen bolts also needed to be re-torqued after a few miles.

I suggest you get the best quality boots available, cheap ones don't stand up well to the Shafts articulation and don't overfill the CV joint.
Chris
User avatar
Grizzly
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1918
Joined: 13 Jun 2010
Location: Cheshire/UK

PostPost by: JonB » Tue Feb 19, 2019 12:10 pm

As an aside, how long should we expect the original boots to last?
Late 1972 Elan Plus 2S 130/5 - UK - Unit 50/1115L
User avatar
JonB
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1726
Joined: 14 Nov 2017
Location: South Coast, UK

PostPost by: rgh0 » Tue Feb 19, 2019 12:14 pm

My original VW CV boots on my Elan and Plus 2 have lasted 30 years and were second hand when I got them in the late 80's. The life of the current equivalent are probably the same but you need to be careful of the source of what you buy

cheers
Rohan
User avatar
rgh0
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 7111
Joined: 22 Sep 2003
Location: Melbourne, Australia

PostPost by: JonB » Tue Feb 19, 2019 12:41 pm

Well, they came from Sue Miller with the shafts so I have high hopes!
Late 1972 Elan Plus 2S 130/5 - UK - Unit 50/1115L
User avatar
JonB
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1726
Joined: 14 Nov 2017
Location: South Coast, UK

PostPost by: RichardS » Tue Feb 19, 2019 1:13 pm

Thanks for replies, I am going to tackle the job tomorrow.

These 2 boots have been on for 10 years but haven’t done more than 1000 miles. I checked with Sue and she said I do not need the limited shock absorbers with these particular CVs

Richard
Lotus Elan Sprint FHC 1973
User avatar
RichardS
Third Gear
Third Gear
 
Posts: 406
Joined: 23 Apr 2007
Location: Wirral, UK

PostPost by: Grizzly » Tue Feb 19, 2019 1:52 pm

The Boot's we changed were kelvedon/Shaftec (i am told they use the same parts and design as Sue Miller's they even supply her shafts in recent years since stopping manufacture her self) the boot's on the 2 seater we replaced were no more than 6 years old with no more than 5000 miles from new.

Personally i think a car thats used will get more life from the Boots as opposed to one thats parked up in full extension for periods of time, on top of that i would expect a +2 CV shaft boot to last longer than the 2 seater due to the droop angle difference.

Easy way of checking to see if you need the droop reducing, with it all assembled jack up the rear of the car and spin the wheel by hand, if you feel it binding the Cv or locking up you need to reduce the droop but if it turns freely your fine (assuming the Boot can handle the extra angle) i was under the impression only Col Croucher's Cv conversion for the 2 seater was able to run stock droop?
Last edited by Grizzly on Tue Feb 19, 2019 2:43 pm, edited 1 time in total.
Chris
User avatar
Grizzly
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1918
Joined: 13 Jun 2010
Location: Cheshire/UK

PostPost by: EPA » Tue Feb 19, 2019 2:27 pm

When my CV boots split I purchased a set from Kelvedon as used on the replacement shafts that they supply. The design near where the boots clamp to the shaft is different to the original Sue Miller items and I am hoping that they last for much longer than the few thousand miles that they did. I took the shafts off to replace the boots
Ed
User avatar
EPA
Second Gear
Second Gear
 
Posts: 113
Joined: 08 May 2011
Location: Preston

PostPost by: Grizzly » Tue Feb 19, 2019 2:37 pm

JonB wrote:Well, they came from Sue Miller with the shafts so I have high hopes!

Did you get them recently? i know the quality dropped off towards the end of assembling at Mick Miller's (why she stopped making them up a few years ago) she then passed the design on to Kelvedon who tweaked it slightly and had Shaftec assemble them so i'm told...... I didn't know she had started selling them again but it would make sense if the flaws had been ironed out.
Chris
User avatar
Grizzly
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1918
Joined: 13 Jun 2010
Location: Cheshire/UK

PostPost by: elansprint71 » Wed Feb 20, 2019 5:49 pm

Richard,
Please could you take some photos of the job in progress and post them here?

Thanks.
User avatar
elansprint71
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 4048
Joined: 16 Sep 2003
Location: Cheshire, UK.

PostPost by: RichardS » Wed Feb 20, 2019 6:24 pm

elansprint71 wrote:Richard,
Please could you take some photos of the job in progress and post them here?

Thanks.


Hi Pete

I have spent the afternoon getting the driveshaft out and it’s now on the bench. I will get some photos as I get along.

Richard

PS has anyone tips for getting the new boot over the shoulder on the driveshaft? Plenty of grease and effort but no success yet. Wonder if the Kelvedon ones are easier to fit as I am tempted to get a pair if they are likely to last longer as I don’t want to the job again for a few years!
Lotus Elan Sprint FHC 1973
User avatar
RichardS
Third Gear
Third Gear
 
Posts: 406
Joined: 23 Apr 2007
Location: Wirral, UK

PostPost by: SENC » Thu Feb 21, 2019 1:39 am

Here are pictures of what I came up with to get the boot on my steering rack, perhaps it will spark an idea for you. Just a piece of a plastic milk jug cut and rolled into a funnel held in place by string that, when pulled throogh the boot allowed it to slip into a tighter funnel.

img_20190220_203319.jpg and


img_20190220_203355.jpg and


img_20190220_203429.jpg and
Henry
69 S4
SENC
Third Gear
Third Gear
 
Posts: 419
Joined: 30 Dec 2015
Location: NC

PostPost by: Grizzly » Thu Feb 21, 2019 11:46 am

With the CV removed from the shaft and using the Kelvedon boot's we just wrapped black tape round the splines with a bit overhanging, light layer of grease and it went over fairly easy.

One thing you will notice with the Shaftec/Kelvedon boot's is they are quite soft and they can be man handled (as long as you don't have any sharp edges exposed)

I would suggest replacing both boots at the same time, you can swap both boots with one cv removed so for what they cost it seems rude not to, saves revisiting.......
Chris
User avatar
Grizzly
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1918
Joined: 13 Jun 2010
Location: Cheshire/UK

Total Online:

Users browsing this forum: No registered users and 14 guests