Have No Idea Why It Is Doing This

[MikeTarr]

My 65 mustang, Straight 6, 200, is giving me SERIOUS issues and it's buggin the heck out of us. Every time I pull it out of the driveway, I pull out into the street, then from there, I take it out of Reverse and put it in 1st. I slowly let the clutch out and put the gas in, as I've always been doing(I know stick), and it starts to go, when it gets close to letting the entire clutch out, it starts to jerk forward really bad, almost like it does when a new person learns stick and lets it out too fast. And I have to push the clutch it more but then I cant go as fast, so I put it in 2nd and it does it a little less, and then finally 3rd it doesnt do it. Then when I come to a stop and push the clutch in, the engine will just stop...

Does anyone have any idea what could be causing this?

We just replaced the clutch and the pressure plate, as the clutch was grinded and the pressure plate was missing a spring and was a bit burned blue .

So we got it all together and it did the same thing to me again, wow is this fustrating. I wanna say that the gears are grinded and arent catching...but I'm not much of a mechanic so I dont know.


Any help would HUGELY be appreciated. Thanks guys.

 

[FrankBoss]

I had a problem like this and it was the pressure plate.
the housing under one the engagment finger was cracked.

this sucked too because it was a rebuilt unit I put in a few months pryer.

Or a spring has come applart in the clutch disc

Best of Luck
Frank

 

[MikeTarr]

Well we replaced the pressure plate..

 

[rickwrench]

Most of the rebuilt pre-66 pressure plates have been rebuilt -many- times by now. A lot of them are junk. I use 74-93 2.0 liter alfa romeo 215mm pressure plates with .15" skimmed from the flywheel mounting surface. It's a very smooth engaging diaphragm style plate. Others have used a similar merecedes 215mm plate as well.
Other top ten possibilities are oil on the flywheel/clutch/PP. If the flywheel was installed without some kind of sealant on the bolts, there will very likely be some oil seepage. Oil on the clutch plate causes mild to violent chattering, and sometimes sudden grabbing if there is a -lot- of oil on the disk. If this is the case, the clutch plate is ruined (unless it is kevlar).
Rick(wrench)

 

[jahearne]

Did you get any oil/grease on the flywheel? Once I put too much grease on the pilot bushing and it got onto the flywheel that produced similar problem to what you're experiencing.

 

[blueroo]

How long ago was the motor rebuilt? I also had a similar problem and was going nuts trying to find it. Everything in the transmission was fine but it kept acting up.

As it turns out, when I reassembled the motor, I put the main bearing (been a while, not sure if that's the right term) at the #3 journal instead of the #4 journal. The result was the crank was about being pushed through the front of the block.

 

[blueroo]

Another thing you might want to check is the input shaft bearing on the transmission.

 

[mustang6]

Broken motor or transmission mount?