Disc Brake Hubs

Larger 4 cylinder engines, body mods, major brake and handling modifications.
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Nourish
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Disc Brake Hubs

Post by Nourish »

Just thinking aloud here and asking for thoughts.
It is apparently possible to use MK2 escort front hubs as part of a disc conversion.
I was then thinking about using perhaps Focus MK1 rear hubs but the bearings in those are non adjustable - would that be a problem?
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Custard
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Re: Disc Brake Hubs

Post by Custard »

The bearings being non adjustable should be no more of a problem than the Moggy Bearings being non adjustable.

It just means any play and they are done.

I may be wrong, but I thought the use of non taper rear ones was more a manufacturing cost and efficiency thing in that the robots could torque them up and job done no spinning and checking etc. Having said that they are probably larger and stronger than the original Moggy ones anyway.

If you have read about it being done then presumably someone has done it and you know exactly what they have done.

Have they found bearings to fit both, Outside Diameter for Ford and Inside Diameter for Morris or is it a modified stub axle?

Then there is the distance out to the Wheel/Disc mounting Face. Will the disc run in the right location for the Calipers and the Wheel fit in the wheel arch.

But if all of these are safely covered then the fact they aren't tapered shouldn't in itself be a stumbling block.

Sean.



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philthehill
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Re: Disc Brake Hubs

Post by philthehill »

A link to the information regarding the fitment of ford hubs especially to the rear would be appreciated.



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Nourish
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Re: Disc Brake Hubs

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MartinB
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Re: Disc Brake Hubs

Post by MartinB »

I fitted escort hubs, 2.8 discs and Princess calipers to my Morris back around 1993 (before John B), I machined my hubs to take bearings that fit the stub axle properly, was not keen on thin sleeves to take the loads.

Also, caliper bracket should really go right round the stub axle without the gap at the bottom.

Can't remember the rest as it was so long ago!



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Nourish
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Re: Disc Brake Hubs

Post by Nourish »

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I could have a pair of these delivered to my door for £44 - Fiesta mk1 rear Drums.
Machine off the braking faces to leave me with a flange and then I'd have a pair of hubs with the Ford PCD, tapered bearings(not included) for the Escort 1600i discs I have to slip over.
What d'yah think?
Edit. I've just ordered a pair of 1993 Escort/Orion rear drums from Euro spares at £14 the pair - got to be worth a look!
Edit 2 Not to worry - I won the bidding on a pair of MK2 Escort Hubs



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Nourish
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Re: Disc Brake Hubs

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Re: Disc Brake Hubs

Post by Nourish »

Well my MK2 Escort hubs arrived today. They came with the STD bearings (not the RS type that uses bigger bearings and these have inner diameters too big for the Morris stub axle but the hubs fit over the stub axle and the bearing spacing's seem to be OK.
The Escort hubs use imperial size tapered roller bearings whilst the Morris used metric bearings.
If for the smaller outer bearing a 30203 17x40x14mm wide bearing is used then the hub will need 0.004" removed on the diameter - that shouldn't be too hard.
The larger inner bearing could be a 30205(J?) 25x52x13.25mm tapered roller bearing but it looks like something near. 0.072" would need skimming out of the hubs diameter.
A sleeve would need to be made up to fit over the stub axle for the 55mm ford oil seal.
The wheel flange places the wheels out a further 11mm out each side.
I have a couple of Ford wheels hanging about - so a KA 15x5J Alloy has around 3/16" clearance between the top trunnion and the 165/60 tyre wall. A 15"x4J steel space saver with a 125/80 tyre has a good 1/2" clearance.
I have some Mk3 RS1600i (I think?) vented discs that fit over the wheel hub studs but this would space the wheels out a further 8mm whereas the Capri vented discs have a much shallower dish and bolt to the appropriate flange on the MK2 hubs which I think might work out a little lighter in weight?.



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MartinB
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Re: Disc Brake Hubs

Post by MartinB »

From memory, the reason we (John and me) skimmed some off the disc mounting flange was to allow the hub to be more inboard to reduce the hub out set and improve clearance of the disc to the upright. I seem to remember it was much less than you quoted.

I also remember making spacers for the inner bearing and a sleeve for the ford seal so sounds about right.

Not sure if you already know but the Princess caliper was designed to be supplied by two flexible hoses and has two separate circuits, to enable only one flexible hose to be used you will need to make a joining pipe from one of the input holes to one of the bleed nipple holes on the side, pretty sure it is the inboard one. I think I still have my old calipers somewhere with the link pipes so I will try to dig them out sometime if you need to know this?



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Nourish
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Re: Disc Brake Hubs

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