New clutch master cyl. needed?

[DMC81]

I recently got it to my "D" to move it and the pedal went to the floor. I noticed the clutch res. was low so I filled it to the correct level and now the fluid shoots out the hole on the cap. I was told to replace it, is that correct? If so is it hard to change out? Any tips?Thanks.

[LEVY]

I recently got it to my "D" to move it and the pedal went to the floor. I noticed the clutch res. was low so I filled it to the correct level and now the fluid shoots out the hole on the cap. I was told to replace it, is that correct? If so is it hard to change out? Any tips?Thanks.

Seems like all you need to do is to bleed the system.

LEVY

[DMCMW Dave]

Seems like all you need to do is to bleed the system.

LEVY

If you bleed it, it may actually fix it for a while. Until it leaks out again. They don't typically get air in them from nowhere. If air got in, fluid went out, and it went somewhere. Usually somewhere bad.

[LEVY]

If you bleed it, it may actually fix it for a while. Until it leaks out again. They don't typically get air in them from nowhere. If air got in, fluid went out, and it went somewhere. Usually somewhere bad.

Unless something else is wrong with the slave!

LEVY

[DMC81]

Unless something else is wrong with the slave!

LEVY

I cant find a leak anywhere, I think it was just setting so long.??

[Tillsy]

I cant find a leak anywhere, I think it was just setting so long.??

It had to go somewhere - either someone stole your fluid or it leaked, the leak being more likely

[David T]

If you haven't found the leak it is because you have to keep looking! Try under the carpet on the driver's side or on top of the transmission. If it leaked out figure on replacing the clutch master and slave cylinders and if you still have the red plastic hose, replace that too with a S/S braided hose. While you are at it look at the brake master cylinder. If the fluid is dark and thick in there figure on rebuilding the whole brake system too. British cars do not like old brake fluid (clutch fluid is the same thing). If it is not flushed at least every other year it gets corrosive and attacks the metal causing pits. When the seals move over the corrosion it tears them up and then everything starts leaking. Bleeding will get you going very temporarily, till it leaks out again.
David Teitelbaum

[stevedmc]

When the stoppers at the end of their master cylinder piston assemblies go bad, failing to seal off their reservoirs and allowing their master cylinders to push fluid back into their reservoirs and out the holes in their caps rather than moving their slave cylinder pistons, Steve Rice and Bill Robertson buy Fenco #22320 replacement piston assemblies at Autozone for $15 apiece.

Steve Rice and Bill Robertson see no reason to replace an entire master cylinder when only a small piece of rubber about 1/4" diameter -- the reservoir stopper -- has gone bad. If Autozone would sell them that piece of rubber alone for a dollar, rather than making them buy a complete piston assembly for $15, they could save even more money.

[DMC81]

If you haven't found the leak it is because you have to keep looking! Try under the carpet on the driver's side or on top of the transmission. If it leaked out figure on replacing the clutch master and slave cylinders and if you still have the red plastic hose, replace that too with a S/S braided hose. While you are at it look at the brake master cylinder. If the fluid is dark and thick in there figure on rebuilding the whole brake system too. British cars do not like old brake fluid (clutch fluid is the same thing). If it is not flushed at least every other year it gets corrosive and attacks the metal causing pits. When the seals move over the corrosion it tears them up and then everything starts leaking. Bleeding will get you going very temporarily, till it leaks out again.
David Teitelbaum

So when I crack the bleeder and bleed it out it will stop shooting out the cap? Sorry im just new to the whole fluid shooting out of the cap thing.

[stevedmc]

Steve Rice and Bill Robertson know that it is much easier for a master cylinder piston to push fluid back into the reservoir than it is to disengage a clutch, which is the whole purpose of the reservoir shutoff stopper -- to seal off the reservoir so that the master cylinder piston has no choice but to push fluid to the harder task.

Steve Rice and Bill Robertson know that if the reservoir shutoff stopper goes bad, the master cylinder piston will do just as you say: it will push fluid back into the reservoir until the reservoir is full and fluid shoots out the hole in the cap.