Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing brake disc

Sounds to me like it might have been the mating surface on the stub axle that was at fault rather than the discs themselves?

I can't remember why, but I removed my discs about 15 years ago and when I replaced them I had a dreadful pulsing through the brake pedal as if the discs were warped. Double-checked the mounting and somehow I'd managed to trap a tiny bit of debris between the disc and stub axle mounting faces. Cleaned them up and flatted them off with a bit of emery cloth and some engineer's blue, reassembled and they've been perfect ever since.

I had new disks on my 4/4 last year. The garage warned me to gently bed them in & to slowly build up the heat (harder braking) over a matter of weeks, or they would warp. Apparently for track work, they only use pre bedded in disks.

I was told a long time ago that new discs were heat treated before final grinding, which reduced warp in use. I was also told that this is no longer the norm.

I have access to a Colchester Mastiff lathe.

Can skim a complete brake disc in one operation, without removing it from the hub!

Arwyn

I've replaced my 2011 Plus 4 standard set up (pre industrial revolution Austin Westminster or something similar) with Mulberry brake kit which is all Hi-spec parts, about 8 years ago. The calipers are 4-pot and the discs/bells are 2 piece. The discs are 312mm diameter if I recall, and with Mintex MGB522 pads give a lovely feel under foot and great stopping power. I did buy a spare set of discs for future, which will of course bolt onto the existing bells, but this shouldnt be for a while given summer use and almost sensible driving. After 20k there's no lip on the discs and the pads are bearly worn. I remove the pads, clean and grease every 2 years. After driving my Exige with AP Racing 4-pot set up I didn't feel the standard offering from Morgan was upto spec.

Any one know the pat number for the brake discs used on 1984 4/4 trying to sorce at motor factors were they off some other cars?

I stand to be corrected, but when I was making enquiries for my 1972 I was lead to believe they were unique to Mog and hence subject to the usual Morgan Mark Up pricing.

Morgan specific I'm afraid.

Arwyn

Cain at Wolf Performance sells them

You could also try Terry Foxen at G.E.E Gigg Mill • giggmill@hotmail.com.

https://geeltd.co.uk/gee/

He is on the mend and getting about again.