More transmission problems...

I'm not sure if it's making any noise when I'm driving but I don't think so. When I'm coming to a stop & push the clutch in, it sometimes sounds like some bearings are grumbling. Most of the time, it's happening when I go to slide it into second or first on the downshift...if I let out on the clutch just a bit to where it starts to engage, the noise stops, but sometimes when I'm at a complete stop & already have it in gear, it will happen...again, if I let out the clutch a bit to where it starts to engage, the noise will stop. Any ideas? I pulled the fill plug & got about a half pint in before it started coming back out the hole.

 

First thing I would do is make sure you have some "free play" in your clutch linkage at the top of your pedal travel..........maybe 1/2" to 1". Sounds like perhaps a noisy Throw out Bearing.........could be a pilot bearing also. But from what you say it seem's like the noise is always when your foot is on the clutch pedal.

 

Throw-out.

 

My first thought was throwout...in fact I ran into Don down at Napa this past weekend & mentioned it to him... I did just have to readjust the clutch when I put the dual master cylinder in & that's when it started...thanks guys, I'll update later when I get it ironed out.

 

It is possible to over-travel on the clutch which pushes the TO bearing to a point where the outside of the bearing makes contact with the fingers on the pressure plate causing a scraping noise. A slight adjustment for free-play usually fixes it.

 

That's a really interesting possibility, given the symptoms as described.

 

my best guess is pilot bushing. It supports the input shaft when you push in on the clutch pedal. If it's kind of a buzzing sound that only lasts a second or two it's likely that. If so I wouldn't worry too much about it unless it gets worse.

 

I lean towards the throw-out bearing, my self. That is how my '63 GMC sounded just before the throw-out bearing seized all-together.

 

Very slight...a few turns in either direction didn't help...somewhere close to my original setting & it started to settle down, so I took it for an extended drive & it finally stopped all together...fickle. Less than 200 miles on the clutch.

 

Try this, while driving along in high gear at 40-50 mph or whatever?.......... take your left foot and lightly start to apply pressure to the clutch pedal................slowly...........that right there will till you exactly how much running free play you have in the system. If there is any you should be able to move the pedal down some until you either feel or hear the contact of the throw out bearing hitting against the clutch fingers..........If you have none you need to shorten the linkage.

 

"Less than 200 miles on the clutch."

Now you tell us..!

A new clutch friction disc, in my experience, needs to break in before final adjustments can be made. A new friction disc can be 'fuzzy' enough to drag for a while, and/or take up a lot of adjustment.

At least, the last time I did one that's what happened.