Early Mk1 S Brake flanges (1071)

Post any technical questions or queries here.
Post Reply
AndyPen
1275 Cooper S
Posts: 3920
Joined: Mon Jul 24, 2017 5:55 pm
Location: South Wales
Has thanked: 18 times
Been thanked: 50 times

Early Mk1 S Brake flanges (1071)

Post by AndyPen »

Hmmmm, I have my my original early 64 S Brake set ups but think we used the driveshafts somewhere else, so lost something it seems. I now discover these early types had a collar fitted (see pic), so I guess I may have to invest in some new flanges as they are unavailable?

Unless anyone knows who does the collars, or maybe someone even has some? Any ideas anyone?

The drive shafts themselves would be pre hardy spicers and should have the yoke of course, so are they the same as ordinary mini ones? Can anyone confirm?

My memory is slipping here so any help or ideas welcome ;-)


collar-for-S-flange.jpg
You do not have the required permissions to view the files attached to this post.
User avatar
Peter Laidler
1275 Cooper S
Posts: 6400
Joined: Sat Jul 15, 2017 5:35 pm
Location: Abingdon Oxfordshire
Has thanked: 141 times
Been thanked: 121 times

Re: Early Mk1 S Brake flanges (1071)

Post by Peter Laidler »

I don't remember that bit Andy. But the illustration looks like the split flange under the S hub nut. On the other hand, are you looking at the similar collar that fits snugly under the copper flange and is often binned, along with the knackered flange. That said, such a bit, if it is missing, would be simplicity itself to turn up on a lathe. Those hub flange illustrations in the parts list ain't good!

As an aside, while writing about hubs ages and ages ago, here's what I said about that S split collar thing:
While we’re here, I’m bound to comment that the tapered split collar BTA 243 acts in a two-fold way. 1; as a flat washer for the hub nut and 2; technically, an absolute centraliser for the hub flange. So far, so good. The reason for it being a SPLIT collar defeats the mechanics of taper centralised seatings in my opinion. So I just machined up two new ones WITHOUT the split, from med carbon tough steel. But there you go – you go to war with what you’ve got
!
User avatar
Spider
1275 Cooper S
Posts: 4851
Joined: Mon May 07, 2012 6:10 am
Location: Big Red, Australia
Has thanked: 187 times
Been thanked: 65 times

Re: Early Mk1 S Brake flanges (1071)

Post by Spider »

These were to centralise the Flange on the inside as well as the outside with the split taper collar that Peter mentioned.

You might find with the later CVs available today, you don't need these. The Drive Flange listed for the cars that used this inner collar is the same up to the end of S production.

Sorry for going off topic here,,,
Peter Laidler wrote: Sun Mar 07, 2021 1:06 pm ,,, So I just machined up two new ones WITHOUT the split, from med carbon tough steel. But there you go – you go to war with what you’ve got[/i]!
Pete the Pom, I too was going to machine a set of these up, but just as I ordered material, I was referred to KAD who have them off the shelf and for a very sensible price. Your CV Nose needs to be in good condition for these to work (but that's the case with the stock item in any case). I've been running these for around 3 - 4 years now and they have made a HUGE difference. With the stock item, I could always hear the splines on the flange chattering away on the CV Shaft on hard cornering, and there was always evidence of movement between the flange and the outer bearing and also the bearing spacer. Since fitting these, the chatter has now gone and there's no movement between the flange and bearing, likewise on the spacer. The split types close up on hard use, even with the latest spec CV Joints and the nut done up to around 250 - 270 ft/lb. The Split types are as dumb as dog shit.
AndyPen
1275 Cooper S
Posts: 3920
Joined: Mon Jul 24, 2017 5:55 pm
Location: South Wales
Has thanked: 18 times
Been thanked: 50 times

Re: Early Mk1 S Brake flanges (1071)

Post by AndyPen »

Interesting stuff - thanks ;-)

There are witness marks on the inside of my hubs that suggest they've been compressed a good few thou. That's what made me check.

I have a pm to follow up so hopefully sorted ;-) If not, the KAD ones are a better outer as noted.

I bet the old drive shafts turn up with them on just after I sort everything out!!!

I have some NOS CV joints here with original rubbers, so hopefully that side is sorted ;-)
User avatar
Spider
1275 Cooper S
Posts: 4851
Joined: Mon May 07, 2012 6:10 am
Location: Big Red, Australia
Has thanked: 187 times
Been thanked: 65 times

Re: Early Mk1 S Brake flanges (1071)

Post by Spider »

AndyPen wrote: Sun Mar 07, 2021 9:05 pm ,,,,There are witness marks on the inside of my hubs that suggest they've been compressed a good few thou.,,,,
I actually wonder if they were previously fitted ?
AndyPen
1275 Cooper S
Posts: 3920
Joined: Mon Jul 24, 2017 5:55 pm
Location: South Wales
Has thanked: 18 times
Been thanked: 50 times

Re: Early Mk1 S Brake flanges (1071)

Post by AndyPen »

Spider wrote: Mon Mar 08, 2021 6:37 pm
AndyPen wrote: Sun Mar 07, 2021 9:05 pm ,,,,There are witness marks on the inside of my hubs that suggest they've been compressed a good few thou.,,,,
I actually wonder if they were previously fitted ?
I am pretty sure they were, but when I came across these they had already been dismantled. One car we had was June 64 and the other Feb 64, so in the zone time wise.
Post Reply