1982 ford bronco 300 6 auto to manual conversion
#46
10-23-2018, 03:42 PM
Is the transmission new/rebuilt? Or is it used?
On the throwout bearing, I had an unknowingly bad one that I reused, and it chirped and chattered when I let the clutch out and was whisper quiet, when I put the clutch in.
I had a new one that also made some noise (a little chirping) that came and went with the clutch pedal.
Both were a rather high pitched chirping noise, not a scratching/rubbing sound..
Even the bad one, right up until it completely grenaded inside the transmission (the only time I've ever had to be towed home), wasn't alarmingly noisy.
That's why I'm curious about the transmission itself. Maybe a bad bearing in the transmission is making noise.
Otherwise, a bolt that's not fully seated (although that'd be more of a knock), or something on the rotating assembly of the clutch/pressure plate that's offset and rubbing the inside of the bellhousing.
On the throwout bearing, I had an unknowingly bad one that I reused, and it chirped and chattered when I let the clutch out and was whisper quiet, when I put the clutch in.
I had a new one that also made some noise (a little chirping) that came and went with the clutch pedal.
Both were a rather high pitched chirping noise, not a scratching/rubbing sound..
Even the bad one, right up until it completely grenaded inside the transmission (the only time I've ever had to be towed home), wasn't alarmingly noisy.
That's why I'm curious about the transmission itself. Maybe a bad bearing in the transmission is making noise.
Otherwise, a bolt that's not fully seated (although that'd be more of a knock), or something on the rotating assembly of the clutch/pressure plate that's offset and rubbing the inside of the bellhousing.
One person's rubbing noise is another's chirp. That's why it's had to diagnose it until you can hear it yourself.
What you are describing sounds like my NP435 out of my 78 4x4 that has the bad input shaft bearing in the transmission. Makes the moise until you step in the clutch pedal. A bad throw out bearing should only be noisy when you have the pedal stepped in. Unless there is too much pre-load on the clutch linkage/slave cylinder. The bearing shouldn't be spinning when the clutch pedal is released.
What do you mean grenaded inside the transmission? The throw out bearing clips onto the clutch fork and slides over the transmission bearing retainer. It's inside the bellhousing not in the transmission.
pat420swed did you use red loctite/thread locker on the flywheel bolts?
#47
10-23-2018, 03:50 PM
#48
10-23-2018, 04:00 PM
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I’ll check the preload theory, I think you guys might be correct about that one since I had just adjusted the adjustment rod on the clutch master cylinder earlier that day, prior to this noise showing up
to answer some of the other questions. The tranny is used however I have installed an all new clutch/pressure plate assembly and new flywheel,
also installed a new pilot bearing and new throw out bearing.
and yes I used loctite on the flywheel bolts though I don’t remember if it was red or blue but it definitely was high temp stuff
to answer some of the other questions. The tranny is used however I have installed an all new clutch/pressure plate assembly and new flywheel,
also installed a new pilot bearing and new throw out bearing.
and yes I used loctite on the flywheel bolts though I don’t remember if it was red or blue but it definitely was high temp stuff
#49
10-23-2018, 06:26 PM
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