Weak Clutch Pedal

[gthompson97]

When we had his tranny apart, you could literally move the shift fork back and forth (kind of like a vibration) with your hand to make it chatter.

[Angella]

did you end up replacing it? His is a little lose, but I don't expect it will give out any time soon - and he doesn't have much money, so we are trying to do this with little expense...

[Angella]

ok, it's weak again... it was good for that entire evening, now, not as bad as before, but it's not engaging until the pedal is 1/2 inch off the floor (before it was like it wasn't engaging at all...)

I'm thinking master... but when when we opened it and gave it a pump, it sprayed us in the face...

Besides, the master costs alot more... any other trouble shooting suggestions?

[gthompson97]

that's the only other thing it could be is the master cylinder.

[Angella]

yeah, that's what I'm thinking... there really isn't anything else in this system (could it be a loose fork?) to be wrong.

Anyone know where to get a master cylinder rebuild kit for these? The cylinder is pretty pricey, and they can't get it locally until at least thursday anyway. Local mitsubishi dealership parts dept was closed, and won't open until Monday....

[gthompson97]

it would be easiest to just buy a new one, i dont' know if they make a re-build kit for that one, you'll have to check around at some auto parts stores and see.

[Angella]

easy = expensive + 5 day wait : )

Just hoping to find something more economic and a little faster : )

[1stGenRocks]

you could always try just taking it apart and cleaning it good then putting it back. i've never seen a rebuild kit for it but then again i've never looked for one

[Angella]

I'd say it's very unlikely that it's a problem cleaning will help - it's usually a busted seal that would need replaced (and usually comes in a rebuild kit)

I've found a kit online, but no price is listed and I haven't heard back from customer service to confirm that it's even still available.

[kjewer1]

Originally Posted by Angella

I'm thinking master... but when when we opened it and gave it a pump, it sprayed us in the face

Opened at the cap or at the line? Forgive me if I missed something by not reviewing page 1, but if its spraying out when the cap is off that master is defintely bad. That goes back to my last post. If you meant at the bleeder, that doesnt tell you anything about it unfortunately.

They do offer rebuild kits at some parts store chains, but if I remeber correctly most poeple that do it end up going with a new master soon after anyway. May not be worth the effort.

[Angella]

No - I'm talking about the master (I'm pretty sure by cap you mean resevoir, and by bleeder you mean slave)

I disconnected the line that leads out from the master, and that showed alot of pressure when the pedal was pumped... I would agree though that that's not a fool proof method, but I would think with that much pressure, and a good slave, I should be getting some reasonable pedal... so I'm really thinking about that fork (and hoping it's not that, because I don't want to take this tranny apart for a 5th time : )

[gthompson97]

i don't see how disconnecting the line going to the slave would tell you anything about pressure. all that's telling you is that it is able to pump fluid out of the master cylinder, not matter how much pressure there is.

[Angella]

I sorta agree... it tells me that I'm getting a fair amount of pressure (it did squirt pretty high) but not necessarily that it's ENOUGH pressure...

I'm still thinking master... since a hydrolic system has a limited number of components that could fail here (I'm basically thinking pedal, some tubing (metal or rubber) and a couple of cylinders : ) Since we've replaced the slave, and the pedal and tubing look good) I'm really thinking master, but hate to spend that money if it's not necessary (esp. since the guy doesn't have much money to work with).

Oh well, looks like I'm looking at a master, unless anyone has anything else to recommend (I'm still thinking fork, but unsure if this could cause this problem....)

Thanks for all of your help - this site has proved very useful, and I have been trying to give back when and where I can.

[kjewer1]

You cant see pressure on an open system What you can see is good flow.

If the fork is bad its easy to tell without dropping the tranny. Have a friend actuate the pedal while you watch that fork. It should move all the way over to the side of the square hole it protrudes from. If it twists one way or the other, one leg of the "fork" is broken. Fairly common problem, especially on 2600s.