Morris Minor Owners Club

I'm thinking about retrieving that set of Marina Calipers which are listed in the 'scrapyards' section, but I'm wondering what things I should check for to see if theyre any good or not.

The discs themselves are a little rusty, but they look as though few sharp applications of the brakes once theye fitted should sort that out, and everything else looks so vaugley familiar that it looks like it might be relatively easy to fit them.

Al.

The discs must not have any judder marks on them also the hubs have to be converted as they are not a direct swap, and I think a different backplate and brakepipes are also needed but they are all available, I will look it up when I get home.

What is a 'judder mark'?

TBH: I'm thinking of picking up the calipers now, so that if I ever decide to fit them then I already have them handy. I'm guessing that since all that's left on that Marina is the calipers and diff, then it'll get crushed pretty soon, so if I dont grab em pretty sharpish then they'll be gone and when I come around to wanting to fit discs to something I'm betting that Marina calipers will be rarer than rocking-horse-doodoo!

The surface of the discs should be smooth and even any type of surface markings mean that new discs and pads will be required as will a large wear lip, they can also have a pad imprint on the discs if they have been stuck on you wont miss any of the above when you look at them.
Parts needed as far as I can tell.
If keeping the Minor wheels the hubs will have to be altered.
A special wheel bearing kit is required.
Special brake hoses 1/2 Minor 1/2 Marina.
Hose end adaptors to fit the Minor hose to the Marina caliper.
And a remote brake fluid reservoir is also required due to the greater amount of fluid displaced.
These are the main bits, plus sealing of the master cylinder cap when fitting the reservoir.

Kevin has pretty much covered it all.
BUT, don't forget that you will also need to remove and dismantle the brake master cylinder, in order to remove the small valve/seal at the end that normally holds the brake shoes in contact with the drums.
If you leave this seal in, then the 'new' front disc brakes will bind.

There is an update on the small valve/seal, JLH have found that it does not need complete removal just drill a 1/8" hole in it to relieve the drag on the calipers, its explained on their website.

I really do recommend discs if you use your car regularly. But don't do what I did when I fitted mine and put the calipers on upside down, with the bleed nipples at the bottom. It took me two days to work out why I couldn't bleed the little bl##ders. And do fit a servo!