clutch humming? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

h0m3skill3t · 06-20-2003, 05:19 PM

i've searched a lot on this topic but couldn't find anything that was helpful. i just installed an ACT street clutch kit when i was installing my SR and its been making a wierd humming noise. the noise goes away when i depress the clutch pedal. but, when im letting the clutch out, it starts making the noise about 3 centimeters from the top. has this happened to anyone that installed a new clutch? does anyone know what it might be? thanks

Chew Slice · 06-20-2003, 05:31 PM

I'm thinking it could be the synchros and not the clutch, but I could be wrong

Bill Roberts · 06-20-2003, 05:51 PM

Just noise and no vibration? Was the bearing replaced with a new one? Are all the bolts torqued properly?

Any of that can cause some nasty sounds.

h0m3skill3t · 06-20-2003, 07:18 PM

yea its just noise, the bearing was replaced and everything was torqued to spec...

lbcklik1486 · 06-21-2003, 01:20 AM

Usually just the throw-out bearing. Aren't some aftermarket clutches suppost to make a bit of nose at first, due to the surface not being fully smooth. Then, after a few hundred miles it'll go away?

Thought, I read that somewhere. My memory is horrible

h0m3skill3t · 06-21-2003, 04:58 PM

Thurazor · 06-22-2003, 01:12 AM

If the humming didn't happen before you put the clutch in, then I highly doubt it is anything with the transmission. Most clutches need about a 500 mile break-in period, so it could just be that.

GotDriftS14 · 06-22-2003, 01:57 AM

Quote:

Originally posted by Chew Slice
I'm thinking it could be the synchros and not the clutch, but I could be wrong

how on earth do you figure that it could be synchro related???

hmmm, it sounds like possibly the input shaft pilot bearing could be worn, its possible to damage it during installation if you arent careful. that would be the most likely thing if the noise goes away with the clutch disengaged and the car in neutral.

06-20-2003, 05:19 PM	#1
h0m3skill3t Leaky Injector Join Date: Oct 2002 Posts: 74 Trader Rating: (0) Feedback Score: 0 reviews	clutch humming? i've searched a lot on this topic but couldn't find anything that was helpful. i just installed an ACT street clutch kit when i was installing my SR and its been making a wierd humming noise. the noise goes away when i depress the clutch pedal. but, when im letting the clutch out, it starts making the noise about 3 centimeters from the top. has this happened to anyone that installed a new clutch? does anyone know what it might be? thanks

06-21-2003, 01:20 AM	#5
lbcklik1486 Zilvia Junkie Join Date: Jan 2003 Location: Western Springs, Illinois Posts: 303 Trader Rating: (0) Feedback Score: 0 reviews	Usually just the throw-out bearing. Aren't some aftermarket clutches suppost to make a bit of nose at first, due to the surface not being fully smooth. Then, after a few hundred miles it'll go away? Thought, I read that somewhere. My memory is horrible __________________ Your car has 4 more liters, and it's unfair to race because I have a turbo huh?

06-21-2003, 04:58 PM	#6
h0m3skill3t Leaky Injector Join Date: Oct 2002 Posts: 74 Trader Rating: (0) Feedback Score: 0 reviews	bump

06-22-2003, 01:12 AM	#7
Thurazor Zilvia Member Join Date: Nov 2001 Location: Rockland, ME Age: 42 Posts: 181 Trader Rating: (0) Feedback Score: 0 reviews	If the humming didn't happen before you put the clutch in, then I highly doubt it is anything with the transmission. Most clutches need about a 500 mile break-in period, so it could just be that. __________________ - Jared Edwards 3S Hybrid [img]too.big.jpg[/img] "Mandies, sandies, peppermint candies, we do it right and we drink a lot of antifreeze." - Group X

06-20-2003, 05:31 PM	#2
Chew Slice Zilvia Member Join Date: Jun 2002 Location: Vancouver, BC Age: 41 Posts: 215 Trader Rating: (0) Feedback Score: 0 reviews	I'm thinking it could be the synchros and not the clutch, but I could be wrong

06-20-2003, 05:51 PM	#3
Bill Roberts Zilvia FREAK! Join Date: May 2003 Location: S FL. Posts: 1,538 Trader Rating: (0) Feedback Score: 0 reviews	Just noise and no vibration? Was the bearing replaced with a new one? Are all the bolts torqued properly? Any of that can cause some nasty sounds.

06-20-2003, 07:18 PM	#4
h0m3skill3t Leaky Injector Join Date: Oct 2002 Posts: 74 Trader Rating: (0) Feedback Score: 0 reviews	yea its just noise, the bearing was replaced and everything was torqued to spec...