Car in question is my 1990 Accord LX 5spd coupe

I'm pretty sure my input shaft bearing in the tranny is toasted. The car has 247k miles, and the noise goes away when I press down on the clutch. Plus the car has a slight knocking that has developed at speed, and I think it's coming from the tranny too. Kind of like a clicking CV axle, only louder... But the axles are new, and so are the wheel bearings. Anyone in the southeast have a cheap accord tranny? otherwise I'll have to rebuild...

Has anyone ever cracked open an accord/prelude tranny? I've rebuilt D-series cable trannys before. Is it any harder than that?

 

By input shaft bearing, I assume you mean what I'm going to call the release bearing, which presses against the pressure plate. If not, then ignore all this

Mine was squeaking when it was going bad. If the squeaking goes away temporarily with a faint clutch press, and varies with RPMs, then it's likely the release bearing. If the car has 247k miles on the original clutch, it's probably gone along with the friction disc. Time for a clutch change if so. Have fun, it's a bitch on the 4th gens

I've never heard of knocking in trannies, I can't help you there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StimpyBoy &raquo;</TD></TR><TR><TD CLASS="quote">By input shaft bearing, I assume you mean what I'm going to call the release bearing, which presses against the pressure plate. If not, then ignore all this

Mine was squeaking when it was going bad. If the squeaking goes away temporarily with a faint clutch press, and varies with RPMs, then it's likely the release bearing. If the car has 247k miles on the original clutch, it's probably gone along with the friction disc. Time for a clutch change if so. Have fun, it's a bitch on the 4th gens

I've never heard of knocking in trannies, I can't help you there.</TD></TR></TABLE>

I wish it was just the clutch release bearing, but of course I can't be that lucky. No, I meant the mainshaft case bearing, located inside the transmission, where the shaft goes through the case and out to the clutch. It's sometimes called the input shaft bearing though. The tranny has to be taken apart to get to it. A bad clutch release bearing(aka throwout bearing) would have the opposite symptoms of what I described in my first post. It would make a noise when the clutch was pressed in, and go away when released, like you said.

By the way, I replaced the original clutch back in April with 242k on it. The job took me 10 hours and it was a bitch! First time I ever did a 4th gen clutch, even though I've had the car since '98.