strange grinding noise - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

huda424 · 04-02-2007, 05:52 PM

so finally i got rid of the stalling problem on my sr and the grinding noise came back. i would rev the engin to about 3000 when i let go of the gas i would hear a grinding noise. samething when i rev to 7000 rpms once i go past 3000 rpm i would hear a grinding sound. sounds like its coming from the bottom of the car, near the trans. any idea what it could be????

pr0ject TRUENO · 04-02-2007, 06:06 PM

Piston chatter or from the actual transmission? It could be the clutch engagement or synchros. Does it grind when you put it into gear? How about when you depress the clutch?

huda424 · 04-02-2007, 06:28 PM

it was making the same sound when it was in gear. i believe its more of a trans thing than pistons.

origin_s135 · 04-03-2007, 09:43 AM

yeah i also believe it's the transmission, same thing happened to my car, i forgot to get it checked up, and one day i hear something snap while driving on the freeway couldn't drive in gear, days later i ordered a new clutch kit, and my mechanic told me to get a transmission just to be safe, ordered it, opened the old one, and the synchros or the gears [ i forgot ] was all messed up, so thank god i ordered a newer one. btw, on the old one my clutch release sleeve was also fudged up. pic:

huda424 · 04-03-2007, 12:16 PM

oh snap! um....i guess i have no choice but to get it checked out. how much does a trans run for these days??? 3-4 hundred???

benefitx · 04-03-2007, 09:29 PM

use the ka internals in the sr bellhousing

sblack13 · 04-04-2007, 12:44 AM

are you sure its the transmission?? i had a similar problem with my s14. it only lasted for about 1 day then the engine blew up.

04-02-2007, 05:52 PM	#1
huda424 Leaky Injector Join Date: Jun 2005 Location: rockville MD Age: 38 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	strange grinding noise so finally i got rid of the stalling problem on my sr and the grinding noise came back. i would rev the engin to about 3000 when i let go of the gas i would hear a grinding noise. samething when i rev to 7000 rpms once i go past 3000 rpm i would hear a grinding sound. sounds like its coming from the bottom of the car, near the trans. any idea what it could be????

04-03-2007, 09:43 AM	#4
origin_s135 Zilvia FREAK! Join Date: Dec 2006 Location: 湾区域 Posts: 1,333 Trader Rating: (1) Feedback Score: 1 reviews	yeah i also believe it's the transmission, same thing happened to my car, i forgot to get it checked up, and one day i hear something snap while driving on the freeway couldn't drive in gear, days later i ordered a new clutch kit, and my mechanic told me to get a transmission just to be safe, ordered it, opened the old one, and the synchros or the gears [ i forgot ] was all messed up, so thank god i ordered a newer one. btw, on the old one my clutch release sleeve was also fudged up. pic: __________________ -robo

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04-02-2007, 06:06 PM	#2
pr0ject TRUENO Zilvia FREAK! Join Date: Jun 2004 Location: san jose CA Posts: 1,012 Trader Rating: (1) Feedback Score: 1 reviews	Piston chatter or from the actual transmission? It could be the clutch engagement or synchros. Does it grind when you put it into gear? How about when you depress the clutch?

04-02-2007, 06:28 PM	#3
huda424 Leaky Injector Join Date: Jun 2005 Location: rockville MD Age: 38 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	it was making the same sound when it was in gear. i believe its more of a trans thing than pistons.

04-03-2007, 12:16 PM	#5
huda424 Leaky Injector Join Date: Jun 2005 Location: rockville MD Age: 38 Posts: 60 Trader Rating: (0) Feedback Score: 0 reviews	oh snap! um....i guess i have no choice but to get it checked out. how much does a trans run for these days??? 3-4 hundred???

04-03-2007, 09:29 PM	#6
benefitx Banned from the Marketplace Join Date: Oct 2006 Location: suwanee ga Posts: 670 Trader Rating: (0) Feedback Score: 0 reviews	use the ka internals in the sr bellhousing

04-04-2007, 12:44 AM	#7
sblack13 Zilvia FREAK! Join Date: May 2005 Location: Seattle Age: 38 Posts: 1,016 Trader Rating: (10) Feedback Score: 10 reviews	are you sure its the transmission?? i had a similar problem with my s14. it only lasted for about 1 day then the engine blew up.