[cfauvel]

Help I just got my mustang back from my mechanic and am having some issues.

1) the pedal travel is not right. The mechanic said that when he tries to adjust the linkage to where the pedal is returning to its proper no-load height, that when you press down on the pedal it is pushing the clutch fork too much and getting the pressure plate's fingers touching the clutch plate.

so the pedal is real low to the floor and releases the clutch fairly close to the floor. I can use my foot to pull the pedal to its normal position, but that leaves several inches of travel before anything happens.

I am using a 93 T5 and bell housing. Using the fulcrum adapter made for this swap and bell housing to be able to maintain my original clutch linkage.

had to go to a smaller flywheel and clutch kit as the original one for the 351 was too wide. The original was 11" 164 tooth, the new one is 157 tooth and either 10.5 or 10" ...the parts used were for a 1968 289 (flywheel and clutch kit)

I would have thought the fulcrum adapter would have preserved the geometry so that the linkage wouldn't need adjustments.

Any thoughts?

Chris
I would have thought

[MustangOne]

Sounds like you are missing a spring.

Check to see if you have the big spring above the clutch pedal.

Then you have a second spring going from the clutch fork to the lh lower control arm.

The last spring is from the top of the z bar and goes to the bottom of the master cylinder. there is a tab that comes out and has a hole in it.

With all of the springs in place you can adjust the pedal to the height you like.

[69fastback]

Wouldn't he want the big spring above the pedal removed? I know when I put my Centerforce clutch in, the instructions said to remove it because it's an assist spring, and not a return spring. When I installed the clutch, that spring had the pedal pulled about halfway to the floor before I removed it, then it was great.

[MustangOne]

With that big spring it will bring the pedal back up to the full height away from the floor.

[BA Mustang]

Mine does the same thing and I have the big spring

[69fastback]

Maybe we are talking about two different things. There is a big spring under the dash that pulls the pedal to the floor. It's an assist spring, and not a return spring because the old three finger pressure plates were very stiff, and the pedal was hard to push. If you have installed a modern diaphragm type pressure plate, you need to remove this spring, or it can actually partially disengage the clutch and burn it up. The new diaphragm clutches are much easier to push, and the spring is strong enough to overcome the pressure, and bring the pedal towards the floor,so if you remove the spring, the pedal will move farther away from the floor, and save your clutch.



Mustang Clutch Spring and Pedal

[MustangOne]

yes you are correct. That makes it clear.

[BA Mustang]

Ok cool, I'm going to have to do this sometime next week

[cfauvel]

ok , yes the 1968 289 clutch kit installed is a diaphram type rather than three finger type like my old 351w clutch kit.

1 - under the dash I have a big moma spring, which is green in color (the chassis manual states it should be brown for the 351w, but if it is an assister spring and not a return spring the green would be better than a brown) I gotta remove the pedal to get that spring off right?

2) at the bottom of the zbar there is a hole, which right now has a smallish spring going from this hole to the hole in the clutch fork, which appears to me to be holding the rod tight against the clutch fork.

3) at the top of the zbar, where the pedal's rod attaches to there is another hole where a spring COULD be attached, however, none is there right now and I don't see the tab on the firewall where this return spring would attach to.

Many years ago I removed a weird spring that sounds like it could be the return spring that someone mentioned connected to the lower control arm.

It's aout 16" long with 13.5" of straight rod and 2.5" of spring. The spring is pretty strong.

would anybody have a picture of the springs attached to the lower part of the zbar and where the little tab on the firewall is?

Chris

[69fastback]

1: yes, that spring needs to be removed. I didn't take my pedal out, but it's a bear to do. The link I posted gives instructions.

2: yes

3: yes, there should be a spring there, and there should be a bracket on the firewall to attach it to. If my car were here, I'd take a pic, but it's getting the cage done right now.