The Fordson Tractor Pages Forum

I am doing the brakes on my 1977 jcb 3c II. Not sure if it based on a Nuffield or Leyland skid unit? What is most likely?
It has the 4cyl engine with the simms injector pump and mechanical governor. I need to scrape off layers of yellow paint to get to the engine number.

The brakes are very similar to the Super Major. Dry disc brakes.
I have started to strip them down, the linings need replacing and are bonded to the metal rotating disc. I have seen just the linings advertised, but it would be easier if a company did exchange friction discs, or I may have to send them off to be relined?

I can't fully strip one side as the linkage is partialy seized by the adjusting nut, the nut is off but I can't get the sleeve thing off the operating rod ( just in front of the dust rubber). I have left to soak and will have another go saturday.

I also need another Clutch pedal and probably brake pedal return springs.

Any help or suggestions welcome, sorry for the long post!

Mark,

If it is 1977 it will be a Leyland. They have similar brakes to the Super Major but have different splined hubs so are not compatible.

I would rather use riveted discs than the stuck on type. I have had problems with them on my Nuffy when the discs have come unstuck off the hub. I have now got riveted ones and these are much better.

I got mine from M.Hipperson, Downham Market , he is on E-Bay and I can really recommend him. You will need to return the old discs.

Hi Brian,

Thanks for the reply.

If they are bonded, I guess the rivet holes would be underneath, can't see at the moment.

I have bought things off of Malcom before and he is very very good I will give him a call.

When I eventually get to the rebuild, is it best to leave the actuators plates / balls and splines dry or apply a smear of copper grease?

I am depating that myself! I cleaned mine up about a couple of months ago and applied a smear of MS3 grease to balls and splines. One brake works perfectly and the other grabs like mad so its back to the drawing board.

I have heard that you can get a dry graphite to apply but have not seen anything yet.

If my JCB is based on a leyland skid unit what model is it likely to be based on My tractors have only ever been Fordsons,or the others I have being grey, starting with a 'F' but I won't mention the name

I have now got the offside apart, the linings are riveted on that side I also now have an oil seal to do as the seal is starting to leak. Quite ironic as the best brake was the one with the leaking seal

I have used a smear of copper grease on both super majors of mine in the past. Just applying a smear to splines and balls, It has stopped the brakes sticking on, which one of them has been prone to.

Will try the Copperslip and see what happens.

Not sure which Leyland you have under there. Up to about 1969 it would have been the 4/65. Is it a three or four cylinder?

It's the 4 cly non turbo, with a simms mechanical governor injector pump.
I have found the engine number, but need to scrape off layers of thick yellow paint first

prob be a leyland 384 they were a common skid unit ?

It may be the 4.98 type engine with about 65-70 hp.
So would that have made it a 272??

I must scrape off the paint and find the engine number, but thanks for the suggestions.

Mark,
Its right at the back on the right side looking from the seat, on a flat area machined onto the block. Unlike Fords, you have to get over the top to see it and the head tends to get in the way.