problem after 5 speed swap.. clutch lines? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

pacefarm · 05-17-2005, 06:50 AM

finally finished the tranny swap this weekend. test drove the car for about 20 min, everything was just fine. went out to eat, got back in the car about an hour later, threw it in first and as soon as i was easing out the clutch i hear GRRRRRRIIIIINDDDDD....... so i push the clutch back in, and its still grinding but a little less. so i throw it out of gear and it goes away. got the car home, re-bled the clutch lines. car was fine for about a day and a half, then started doing it again. i noticed the car was leaking brake fluid, from the slave and the clutch line connector under the car. just wondering if its just losing pressure in the system to push the clutch arm all the way and that causign the grinding? i'm planning on getting rid of the stock clutch damper since i heard it traps air. any suggestions to what the problem might be, besides the lines not holding pressure? also, any tips on tightening the clutch line fittings so they dont leak?

thanks in advance!

the head · 05-17-2005, 07:42 AM

use teflon tape on the lines problem is coming from the leak i would assume

projectRDM · 05-17-2005, 10:30 AM

If fluid can leak out, air can leak in. Fix the leak and bleed it thoroughly.

pacefarm · 05-17-2005, 11:23 AM

thanks for the replies, i'm hoping that that is the problem and nothing more serious. i'm planning on bypassing the damper and going straight to the slave cyl by adding another clutch line, instead of bending the hard line.

hey head, about your avatar, i take that exit at least once a week lol. where u from?

pacefarm · 05-18-2005, 06:25 AM

*BUMP*

got rid of the clutch damper last night, retightened all the lines from master to slave, same problem. sitting in neutral, push the clutch in and shift into first, start letting out the clutch hear a hard grinding noise. push the clutch back in, grinding noise is still present only quieter. shift back into neutral, grinding is still there untill i let the clutch out. try again, goes in just fine. happens about once or twice per every 5 attempts. someone please help!!!!

*NemeGuero* · 05-18-2005, 12:38 PM

really make sure you bleed the line thoroughly.. Did you add enough tranny fluid? Did you install a new throughout bearing when you did the swap?

uno · 05-18-2005, 12:46 PM

so it's grinding with the tranny in neutral ? check pilot bearing/throw out bearing too while you're in there and the clutch fork.

pacefarm · 05-18-2005, 01:23 PM

Quote:

Originally Posted by NemeGuero

really make sure you bleed the line thoroughly.. Did you add enough tranny fluid? Did you install a new throughout bearing when you did the swap?

yea, the throwout bearing and pilot bushing are brand new. for some reason it happens only first and reverse. sometimes, a little hint of a grind in 2nd..

Quote:

so it's grinding with the tranny in neutral ? check pilot bearing/throw out bearing too while you're in there and the clutch fork.

yup.. keeps grinding in neutral till i let the clutch out. feels like the gear sticks and didnt disengage properly.

vinhisbored · 05-18-2005, 08:57 PM

after i did my swap mine kinda grinded, wasn't pushing it out enough, but i adjusted my mastercylinder more, that thing lol the uhh adjustable screw thing attached fromt he mc to the pedal, i adjusted it all the way so it pushes more out lol, hope that helps

*NemeGuero* · 05-18-2005, 10:09 PM

grinding... syncro? was the tranny good before it went in?

pacefarm · 05-19-2005, 06:24 AM

Quote:

Originally Posted by NemeGuero

grinding... syncro? was the tranny good before it went in?

as good as the guy who sold it to me said it was. the thing is, it does not grind every single time. i'm assuming with a bad syncro it would (?). well, i'm replacing slave and master cylinders tonight. we'll see what happens.....

*NemeGuero* · 05-19-2005, 11:02 AM

not necessarily... the syncro could be just worn and slip on occasion
try some transmission conditioner if replacing the cylinders doesn't help

the head · 05-19-2005, 12:51 PM

Fill the trans with GM synchromesh or redline shockproof both help with noisey synchros and smooth out shifts on worn transmissions

05-17-2005, 06:50 AM	#1
pacefarm Zilvia Member Join Date: Dec 2003 Location: RO, MI Age: 45 Posts: 183 Trader Rating: (0) Feedback Score: 0 reviews	update - problem after 5 speed swap.. clutch lines? finally finished the tranny swap this weekend. test drove the car for about 20 min, everything was just fine. went out to eat, got back in the car about an hour later, threw it in first and as soon as i was easing out the clutch i hear GRRRRRRIIIIINDDDDD....... so i push the clutch back in, and its still grinding but a little less. so i throw it out of gear and it goes away. got the car home, re-bled the clutch lines. car was fine for about a day and a half, then started doing it again. i noticed the car was leaking brake fluid, from the slave and the clutch line connector under the car. just wondering if its just losing pressure in the system to push the clutch arm all the way and that causign the grinding? i'm planning on getting rid of the stock clutch damper since i heard it traps air. any suggestions to what the problem might be, besides the lines not holding pressure? also, any tips on tightening the clutch line fittings so they dont leak? thanks in advance! Last edited by pacefarm; 05-18-2005 at 06:26 AM..

05-17-2005, 07:42 AM	#2
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	use teflon tape on the lines problem is coming from the leak i would assume __________________ I never knew you could do that with an eggplant

05-17-2005, 10:30 AM	#3
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	If fluid can leak out, air can leak in. Fix the leak and bleed it thoroughly. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

05-18-2005, 12:46 PM	#7
uno Zilvia Member Join Date: Mar 2003 Location: Castlewood VA Age: 43 Posts: 174 Trader Rating: (0) Feedback Score: 0 reviews	so it's grinding with the tranny in neutral ? check pilot bearing/throw out bearing too while you're in there and the clutch fork. __________________ CA18DET t25, 440CC injectors, Greddy FMIC, Greddy Hot Pipe, Greddy Type RS Bov ,Greddy Turbo Outlet, Trust DP, Motoria 3" Catback , XS Tubular Manifold, Nismo AFPR ,Nismo Engine and Transmission Mounts ,Apex'i SAFC 2 Walbro 255lph, LSD, SPL Subframe Collars, Tein S Tech Springs, Tein Tie Rods, Upper Front and Rear Strut Tower Braces. Black 180sx wheels.

05-19-2005, 12:51 PM	#13
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	Fill the trans with GM synchromesh or redline shockproof both help with noisey synchros and smooth out shifts on worn transmissions __________________ I never knew you could do that with an eggplant

05-17-2005, 11:23 AM	#4
pacefarm Zilvia Member Join Date: Dec 2003 Location: RO, MI Age: 45 Posts: 183 Trader Rating: (0) Feedback Score: 0 reviews	thanks for the replies, i'm hoping that that is the problem and nothing more serious. i'm planning on bypassing the damper and going straight to the slave cyl by adding another clutch line, instead of bending the hard line. hey head, about your avatar, i take that exit at least once a week lol. where u from?

05-18-2005, 06:25 AM	#5
pacefarm Zilvia Member Join Date: Dec 2003 Location: RO, MI Age: 45 Posts: 183 Trader Rating: (0) Feedback Score: 0 reviews	BUMP got rid of the clutch damper last night, retightened all the lines from master to slave, same problem. sitting in neutral, push the clutch in and shift into first, start letting out the clutch hear a hard grinding noise. push the clutch back in, grinding noise is still present only quieter. shift back into neutral, grinding is still there untill i let the clutch out. try again, goes in just fine. happens about once or twice per every 5 attempts. someone please help!!!!

05-18-2005, 12:38 PM	#6
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	really make sure you bleed the line thoroughly.. Did you add enough tranny fluid? Did you install a new throughout bearing when you did the swap?

05-18-2005, 08:57 PM	#9
vinhisbored Zilvia FREAK! Join Date: Apr 2005 Location: socal Posts: 1,359 Trader Rating: (15) Feedback Score: 15 reviews	after i did my swap mine kinda grinded, wasn't pushing it out enough, but i adjusted my mastercylinder more, that thing lol the uhh adjustable screw thing attached fromt he mc to the pedal, i adjusted it all the way so it pushes more out lol, hope that helps

05-18-2005, 10:09 PM	#10
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	grinding... syncro? was the tranny good before it went in?

05-19-2005, 11:02 AM	#12
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	not necessarily... the syncro could be just worn and slip on occasion try some transmission conditioner if replacing the cylinders doesn't help