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50's MG Parts? In my sports/racer

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TRMark

TRMark

Jedi Knight
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I have been restoring my old sports racer. Through the wonders of the internet I have found my old car has Cooper derived parts in it. My understanding is some of these may be of TD origin. I did find the MOWOG stamped on the steering rack.

Can you guys ID these front brake slave cylinders, they are 7/8" Lockheed. They were seized but I am going to try to clean up the bore with scotch brite. I need to buy at least the repair kits and would like to have couple of spare cylinders on hand. I put new cups in them many years ago during earlier repairs.
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What is the pipe thread in these cars. I am adapting in new Wilwood master cylinders.

I used to use the car for autocross years ago and intend to again plus maybe a few hillclimbs, not competitive but fun.

More pictures of the car Here
 
If you can get me the Lockheed numbers, I might be able to cross-reference them to one of my suppliers for repair kits.
 
Thank you David and Tony. The numbers on the three of the casting are 25250/3, one of them is 25250-3. The brake drum dia. is 8" are those TD shoes also? I assume the cylinders are threaded British Standard is that correct? Can I retap something upstream of the cylinders to something more current? Possibly the incoming line at the banjo and leaving the connecting pipe and other banjo and cylinders alone?
 
Mark - The TD uses a 9" drum. The drums you have are from something other than MG, perhaps a early bug eye Sprite). The threads in the wheel cylinder is a BSF (either 5/16 or 3/8 I will have to check tomorrow on that), and it is a banjo fitting that goes into them, with a brake line between the two cylinders on each wheel. Before you get too carried away with modifying thing to American threads, you might want to take a look at the Moss catalog page for the TD brake system at: https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=32824 and the early Sprite brake system at: https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29304 most of the parts you will need are still available.

Rereading your original post, I see that you think that it may be derived from a Cooper, in which case try looking at the Mini Mania web site at: https://www.minimania.com/
Cheers,
 
Thanks for the info and links David, I need to pick a point to convert the brake thread to the new master cylinder. If I can use easily available parts to make repairs, than further up the lines would be better, maybe at the master. I wonder if there is some kind of a readily available adapter fitting available? I need to replace the flex lines with braided. Two of the current ones are original, making them over 50 years old, not a good idea for a 1100 lb car with a 1600 Alfa in it.

By Cooper I meant the Cooper F3, Cooper MG of the early 50's. Cooper MG XPAG
 
Mark - If you are using a M/C with different threads, you should be able to get a fitting to put on the brake line at that end to fit the new M/C. an alternative would be to have an adapter made with male threads to match the new M/C and the proper BSF female fitting. The only tricky part would be to match the bottom of the hole to the fuel line flair. I'll get the measurements on the threads for you today.
Cheers,
 
Mark - I'll do some cross-referencing & gwet back with you sometime in the next day or so,
 
Thank you very much for your help, this BCF is a wonderful community of enthusiasts.

I noticed in the description of the wheel cyl., Moss describes it as "Classic Gold", what does that mean?

I am starting another topic with a picture of a Tie Rod End. You may be able to ID that for me too. Tony, I am putting together a parts order as soon as I get stuff figured out.
 
Roger said:
Those brakes look like Morris Minor, but I suspect frogeyes' are similar.
Click to expand...

Just did a Google search on the Brake Master Cyl I removed from the car. Lockheed 7/8" 28909/2. Found a note in the forum of the Morris Minor Owners Club mentioning the cyl appeared in the pre 1098 cars.
 
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<span style="font-weight: bold">MG TD....Repair kit for 4 cylinders: Moss #180-448; New cylinders: Moss #180-620</span>
 
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