brake calipers

[mike kimmens]

Anybody got a pair of stag front brake calipers for sale? Hopefully will be getting the rebuilt 2.5 engine back from the reconditioners soon but still running on MK1 2000 brakes with the 3/8" discs. Stag discs and calipers are cheaper than 2500 so I thought I would change to them with the 15" Minilites but need a pair of calipers to recon or exchange.

[dazzer]

MkII calipers would work just as well if they are easier to source

[CRAJ]

570 wrote:

MkII calipers would work just as well if they are easier to source

But mk2 discs are more expensive than Stag ones.

Colin

[Van]

Try Robsport. I got mine there for my 2.5PI (a few years ago though) and I didn't need to exchange.

[Andy Borris]

I'm confused, I know there's a difference between MK 1 and Stag front brakes, but what's the differences between MK2 and Stag?

I ask because I'm thinking of doing this very conversion on my MK1, which may have MK2 front brakes (I'm not sure!) and if MK2 and Stag brakes are the same in some way, it may mean less work.

I know that MK1's have a thin disc, any other differences?

Thanks

Andy

[DJB_Harvey]

Yes , Mk1's with the thin discs have different hubs as well . Late Mk1 & Mk2's / Stags use the same hubs .

[Andy Borris]

So if I change to Stag, I'll have to change the hubs too, if I've still got MK1 brakes?

And I understand Stag discs are a larger diameter, does this mean that I need to change the caliper mount too, or does the Stag caliper have longer mounting lugs?

Andy

[DJB_Harvey]

Yes you will need Mk2 hubs .. Pretty common even new . Stag calipers bolt straight onto all 2000/2500 range . It's only the hubs and splashguards that vary .

[thescrapman]

1529 wrote:

So if I change to Stag, I'll have to change the hubs too, if I've still got MK1 brakes?

Only of you have early Mk1 brakes.

A well known trader starting with R will do you brand new mk2 hubs inc new wheel studs for £21 each, so I would expect second hand to be much cheaper, and also other traders to be the same or cheaper.

Cheers

Colin

[StagNL]

I think we've lost a few posts in here too as I'm trying to find the bit where I said I'd measure the hardness of the Stag stub axles I have.

There was mention here that the Stag and Saloon axles were the same save for hardening on the Stag items.  Checked the R site for part numbers and both are allocated the same number.
Checked the NOS Stag axles I received several years ago from a supplier here in NL who dealt exclusively with Stags:  both axles have a hardness of around 20-25HRc all over.
Checked the old worn ones on spare uprights I have: both are 20-25 all over except the 27.0mm section where the inner bearing fits which was 48-55HRc.

My conclusion unless better evidence is supplied: Only the inner bearing race on Stag stub axles was hardened on the originals out of the factory.  Probably induction hardening.
The (supposed) NOS replacements I have may be Saloon parts.

[Richard B]

Nothing like Part No.s to bring out the inner anorak!  8)


Stag                  154474

MkII 2.5 PI & S  138425

[CRAJ]

699 wrote:

I think we've lost a few posts in here too as I'm trying to find the bit where I said I'd measure the hardness of the Stag stub axles I have.

There was mention here that the Stag and Saloon axles were the same save for hardening on the Stag items.  Checked the R site for part numbers and both are allocated the same number.
Checked the NOS Stag axles I received several years ago from a supplier here in NL who dealt exclusively with Stags:  both axles have a hardness of around 20-25HRc all over.
Checked the old worn ones on spare uprights I have: both are 20-25 all over except the 27.0mm section where the inner bearing fits which was 48-55HRc.

My conclusion unless better evidence is supplied: Only the inner bearing race on Stag stub axles was hardened on the originals out of the factory.  Probably induction hardening.
The (supposed) NOS replacements I have may be Saloon parts.

Sadly the parts that you get supplied now would (unless NOS) be the same for saloon and Stag, this wasn't the case originally hence the 'bonus' of getting some good condition used original, hardened Stag stub axles in an Ebay deal for the front brakes.

[Richard B]

Presumably this was to handle the extra load on the stub axles from the superior brakes of the Stag?  :-/

Faster car, higher top speed, heavier use of brakes.

[James]

I have some s/hand Stag uprights along with hubs and stub axles that I bought to mock up my new brakes — wonder if they're hardened.

Richard— I've never seen a Stag driven like it needs hardened stub axles!

[Richard B]

Look up Tony Harts Modsports Stag racer  8)

[James]

The exception to the rule — rarely ever seen a Stag driven in anger.

[Alex]

Or in Richards case driven......sorry that was unfair,it was I that left my spitfire in a dry garage New Year's Eve and let someone else drive to the pub. ;D

[MarkDeTriomphe]

And to be fair, I do recall Richard's Stag being driven quite hard once - luckily Richard was asleep at the time 8)

[Richard B]

Can we do the next RBRR in your Stag  :-/

:P