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MG Midget and Sprite Technical - Brake Master Cylinder Leak
|midget a leak which I assume is from the Brake master cylinder. I have a tell tale drip from the brake pedal onto the footmat beneath which I believe is typical.|
Never repaired anything like this before and I see in the Moss catalogue that there is a repair kit at
If you have not wrestled with other Midget mechanical issues lately - I would suggest that your leaking Brake Master Cylinder would NOT make a good first repair project. The low cost of the rebuild kit can be very attractive - but once you try and take it apart, you will quickly get an appreciation for how difficult it is to "get it right"...
It's fun to go fast...but it's even more important to stop faster!
This is one of those little projects that I would describe as a "velvet lined mouse trap"...
|I was told changing seals is not favoured, i.e. buy and install a new M/C|
|New master cylinder is the best way.|
|The original maintenance schedule calls for the brake seals to be replaced every 30.000 miles, or Three years. So are we saying that the master cylinder has to be replaced every Three years. That seems a bit over the top.|
|there's absolutely no reason why you should not fit new seals in the existing master cyl. It's not rocket science and as long as you are logical, not too ham-fisted, and able to interpret and understand manuals then go ahead. The rebuilt m/cyl will either work or not and this is tested at 1 mph in your drive not at 40mph on the main road!|
|Andy. as David says, be logical, take your time and it should be OK. Once you've got it on the bench and are taking it apart, as stuff comes away, put it on the bench left to right as it comes out of the cylinder, then hopefully you won't get mixed up once you've fitted the new seals. Re-assembly is the reverse of dismantling, as they say in the manuals. most manuals have exploded drawings to refer to if you do get it wrong.|
|And use plenty of Brake fluid on the new seals as you fit them.|
This thread was discussed between 10/08/2010 and 11/08/2010
This thread is from the archive. The Live MG Midget and Sprite Technical BBS is active now.