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Break problem

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Metguy

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Hey everyone! New problem. I was working on my break lights and had a friend apply the breaks while I tried to figure out the light problem i had and now I have another problem :crazy: I don't have any breaks! I have tried to repump them up by pressing the break peddle but can't get them pumped back up. Any ideas????
 
probably a compromised system, i.e. bad master or slave cylinder, air in the lines. leaking or tired and expanding hoses, leaky fittings or lines[rare] or a bleed valve was not closed properly. how's the level in the reservoir? any visible leaks anywhere? ==elrey
 
I just replaced the master and slave. The reservoir was fine, just checked it. I guess I need to look at the lines and hoses for problems..
 
Are we talking about your Metropolitan? If so, Is there a chance you did not bleed the system correctly? You start at the furthest bleed valve from the master cylinder and work your way forward. You may have to do it twice. Hopefully that is your problem. Your auto has 4 slaves and one master. If you haven't already I would take all the drums off and look so you'll know what's up. look at all the slaves for signs of brake fluid or a crust. I'm going with the improper bleeding. It"s an easy fix.Be sure to use the right size wrench for the bleed valves. Purge ALL the valves. Some brighter soul will surely be by here soon with a better idea. --elrey
 
I can't speak for Met's in general, but normaly you need to bench bleed your brake master cylinder before you install it. Air needs to be purged form the Master cylinder before bleeding the rest of the system. It's correct to bleed the farthest wheel cylinder from the master first, and work your way back after bleeding the master first.

One more note, it's brakes and not breaks. Not being a jerk, just wanted you know the correct spelling.
 
:iagree: Usually there are plastic tubes for the job in the new master cylinder package with instructions on bench bleeding. Figured you'd done that as you had installed the master. Always read and follow the directions. This may well be, hopefully, your problem. Good call 64 elan. --elrey
 
Metguy said:
I just replaced the master and slave. The reservoir was fine, just checked it. I guess I need to look at the lines and hoses for problems..
Click to expand...

Rebleed the brakes first.---Keoke
 
The fact that you can't "pump them up" makes me think you've definitely got a leak or possibly a failed seal somewhere in the system. As I recall, the Met's brakes are very similar to those on a Triumph Herald. I can honestly say that I've never had to bench bleed a Girling single-circuit master cylinder before installing it, but it still can't hurt. But my point is that I can always get some pedal with pumping, even if there's air in the system and even if any or all of the six adjusters is slackened off somewhat, hence my suspicion that there's a leak (or possibly a failing seal, but usually they leak as well).
 
Metropolitan brakes are like Minor 1000 and Wolseley 1500 if my memory is right. Bigger drums than Minor but similar layout. Don't they have a low-level under-the-floor iron master cylinder like the Minor? I think so, and don't get what you mean by "reservoir", because that's integral with the m/cylinder which looks something like This.

If yours isn't like this, could you describe it please?
 
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