16 replies to this topic

[minimuk]

just wondering if the front hubs of my 7"disc's are not only to be used for 7" disc, but can also be used 7.4" and 8.4" discs or will there be an isseue with the caliper size.

cheers

[MRA]

They won't fit without a lot of design & machining work

Of course if someone has already done it then you may be lucky, although most people would simply swap over to the later type and fit either 8.4" (standard) or modified 8.4" down to fit the calipers in question... be it 8.3" for 10" wheels or down to 7.5" for Cooper S style brakes

[Gulfclubby]

I can recommend these: http://www.minispare...id=36411&title=

[Shifty]

I thought you could use the 7" set up as a basis for the 7.5" conversion?

[minimuk]

They won't fit without a lot of design & machining work

Of course if someone has already done it then you may be lucky, although most people would simply swap over to the later type and fit either 8.4" (standard) or modified 8.4" down to fit the calipers in question... be it 8.3" for 10" wheels or down to 7.5" for Cooper S style brakes

Thanks for that, I will look into that

I can recommend these: http://www.minispare...id=36411&title=

Gulfclubby thank you, Well they look the part, just a wee bit expensive

I thought you could use the 7" set up as a basis for the 7.5" conversion?

Cheers shifty, I will try and fit them and see what it does. PS how is that engine coming along?

[Shifty]

Its in bits in my garage!!

I do have a 7.5" set up in the garage as well, more than welcome to pop over and see how much is different between the 2 sets.

We could try swapping some bits and see what fits?

[minimuk]

Its in bits in my garage!!

I do have a 7.5" set up in the garage as well, more than welcome to pop over and see how much is different between the 2 sets.

We could try swapping some bits and see what fits?

that's a thought,.... I will have a go here first,...next week as I is busy next few days at work, I know where to find you on here or Facebook,
cheers

[Shifty]

No probs, just drop me a message and we'll sort something out.

[MRA]

The 7" hubs are a slightly modified drum hub, and the 7.5" hubs are a completely new design.... sorry I mean at the time, not now of course

I am pretty certain the offsets and caliper bolt hole spacings are all wrong however it will be interesting (I obviously don't have a life at the moment) to find out the compatibility of the 2 different hub assemblies.

Edited by mra-minis.co.uk, 27 September 2011 - 10:00 PM.

[minimuk]

The 7" hubs are a slightly modified drum hub, and the 7.5" hubs are a completely new design.... sorry I mean at the time, not now of course

I am pretty certain the offsets and caliper bolt hole spacings are all wrong however it will be interesting (I obviously don't have a life at the moment) to find out the compatibility of the 2 different hub assemblies.

I will have a look next week, but you could be right re bolt hole spacings 7" calipers are smaller by the looks of it, get the old ones off first and will see.
cheers

[ace01]

The hub for the Cooper discs is the same as the hub for the Cooper S (7.5) as well as the later 8.4inch discs. The only issue I have ever had is that the later hubs can sometimes not have a slight chamfer that you find on the earlier items. Only a problem when fitting new 7 inch discs. So not going to be a problem for you.

[minimuk]

The hub for the Cooper discs is the same as the hub for the Cooper S (7.5) as well as the later 8.4inch discs. The only issue I have ever had is that the later hubs can sometimes not have a slight chamfer that you find on the earlier items. Only a problem when fitting new 7 inch discs. So not going to be a problem for you.

Thanks Ace01, will have a look and see whats goin on in there, so older versions should/could fit

[ace01]

The hub for the Cooper discs is the same as the hub for the Cooper S (7.5) as well as the later 8.4inch discs. The only issue I have ever had is that the later hubs can sometimes not have a slight chamfer that you find on the earlier items. Only a problem when fitting new 7 inch discs. So not going to be a problem for you.

Thanks Ace01, will have a look and see whats goin on in there, so older versions should/could fit

Yes.

[Ethel]

Are you sure?

They use different CV's so the drive flanges must be different and the bigger discs also involved an increase in track.

[MRA]

I always though tthey were different, they do use the same wheel bearing kit so there are at least similarities, the drive flange is different as well.