[70 FJ40] New (surfaced) what is the noise? New Flywheel, clutch, clutch cover and bearings.

[Ramacher]

Sounds like a mis-match between your master and slave. In other words, your master's bore may be too small (diameter-wise) in relation to your slave's bore so it doesn't give the slave enough fluid during one complete pedal-push to complete the required amount of fork movement.

(It is always a danger when parts are replaced that the dimensions of the new are not compared with those of the old .... and different bore-sizes can have a harmful effect just the same as different pushrod lengths do.)



Edit: PS. But before concluding a mismatch, double-check your clutch specs (including the pedal free-height measurement) are as per the FSM.

WINNER!

I put in the original clutch master and slave and didn't take more than 5 minutes of adjusting push rods to get it set right!

The slave cylinders look almost exactly the same but the old master looks like it has a longer stroke than the new one. Can't tell about the diameters but what you said makes sense.

I got it adjusted where the throwout bearing comes off the fingers and pushing the clutch pedal all the way down fully disengages the clutch! Shifting is a tad rough compared the "new" master and slave but it's adjusted correctly now.

 

[antFJ]

The 1970 master is definitely larger - bore or depth i'm not sure but different - good catch. It is still available new iirc

 

[yotamotive]

See video: Dropbox - VID_20160205_141326.mp4



It comes and goes but stayed during this video. One is that whining noise and the other is that tearing noise when taking my foot off the clutch. Haven't driven it yet because I want to make sure I didn't mess anything up before doing so.

Also I've adjusted the clutch slave pushrod to the shortest possible length and throwout bearing it still touching the fingers. Do I need to shorten/screw in the fingers?

Edit: upon further inspection the tearing noise is the pressure plate grabbing onto the clutch disc. It's more of a light scratching noise. Am I right in assuming this is normal?

Ramacher,

Did you ever figure out what was causing the noise in the video? I realize you solved the adjustment issue with a new master, but I was wondering about the noise. Did you ever figure out what was causing it in the first place? A spinning throwout bearing shouldn't make noise like that, even when it is touching the forks in normal use.

 

[SamAbadir]

See video: Dropbox - VID_20160205_141326.mp4



It comes and goes but stayed during this video. One is that whining noise and the other is that tearing noise when taking my foot off the clutch. Haven't driven it yet because I want to make sure I didn't mess anything up before doing so.

Also I've adjusted the clutch slave pushrod to the shortest possible length and throwout bearing it still touching the fingers. Do I need to shorten/screw in the fingers?

Edit: upon further inspection the tearing noise is the pressure plate grabbing onto the clutch disc. It's more of a light scratching noise. Am I right in assuming this is normal?

Can you make this video public?