max2envy98

iTrader: (12)

Why do the throw bearings go bad ? or even the input shafts? im starting to get a slight humming noise when i first start the car then it goes away??

max2envy98

iTrader: (12)

whats funny is this is my 8th fourth gen and the 5 5spd and the last 2 5speeds have given me these issues.. the last one did it while driving also ?? weird but the say that was an input shaft (got scared sold my love ) and about 2 months later its still going strong, and lastly the newest addition does a humming only when cold and i let go of clutch , but not while driving ...

pmohr

iTrader: (26)

If it's bad, it'll generally make noises all the time, not just after starting.

They go bad from wear and tear, age, a defective part, debris, etc. Just like any other rotating part in/on the car.

max2envy98

iTrader: (12)

so for now i really shouldn't worry?

Sherwoodlax33

Its the input shaft bearing, my car has this same problem. I've had this problem for a bit over a year now and I've yet to have any problems come from it. If you do want to replace it, I would wait until you have something else to replace in the tranny so you can kill two birds with one stone.

max2envy98

iTrader: (12)

thanks for the input, hey is there a difference in throw out bearing noise and input shaft noise, or problems ??

pmohr

iTrader: (26)

Yes, they're two completely different parts. One inside the trans, one outside.

TOB noise will only happen while you've got the clutch disengaged.

ISB noise will disappear when you disengage the clutch (at idle).

TOB is an easy change, just drop the trans and swap it out.

The ISB(s) are more involved, as you have to split the trans open.

max2envy98

iTrader: (12)

Thank God, my prob is def the TOB cause it only happens when i disengauge ... , thats a relief in one aspect.

jdooley

I don't know if this is true on the Max or not but I had a 200SX five-speed on which I toasted the input shaft bearing (a long sad story) and I noticed it was always quietest when the car was in 4th gear because it was a 1:1 ratio and as such the gear on the input shaft simply locked to the output shaft through a synchro whereas all other gears pass power to parallel shafts and as such increase the side-loading on the input shaft bearing and, subsequently, the noise.

max2envy98

iTrader: (12)

not sure but i know that my last 4th gen max my 98, the ISB was def the issue but till now i still talk to the old owner and he says other than the noise its been fine.....