manual tranny problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Mista Lee · 10-02-2012, 10:09 PM

So this problem came out of the blue..
5 speed in my vert doesn't want to go into gear sometimes. It seems like this problem only happens with 1-3 gears. When I am able to shove it into gear, the car will want to move forward even when the clutch is fully depressed and also makes a clunking sound coming from the tranny. When in reverse, it's the same thing and a clunking noise is even present.

Weird thing is that these problems go away after driving the car for a couple miles. After that I would be able to go into gear perfectly, but when driving the car after it's cooled down and has been sitting for a couple hours, the problem comes back..

This problem is only when the car is running, when the car is off, i'm able to go through all the gears normally..

Car has an ACT 6 puck clutch, resurfaced flywheel, and a circuit sports short shifter as far as mods dealing with the tranny..

Thanks for any input guys

Nidd · 10-02-2012, 10:13 PM

Sounds like clutch isn't fully disengaging. Have you tried to adjust the rod connecting to the pedal master cylinder? Also check the slave on the trans.

Mista Lee · 10-02-2012, 10:16 PM

The rod on the clutch pedal has been adjusted a couple times, its actually almost through the whole rod

kilamax03 · 10-02-2012, 10:30 PM

check your fluid for the master clutch cylinder make sure its full

Mista Lee · 10-02-2012, 11:02 PM

Fluid is good.

shift_down · 10-03-2012, 07:47 AM

sounds like tranny fluid. When the car warms up, you can shift perfectly? What tranny fluid are you using?
Let me ask you this, If you let the car run for 10 minutes, without driving it, then can you shift good?

if yes, then it is the tranny fluid.

Mista Lee · 10-03-2012, 10:11 AM

I remember putting the cheapest Valvoline 7590 that was available at the moment.

I'll see what happens if I let it sit for that long.
Thanks

shift_down · 10-03-2012, 10:50 AM

ok cool cool. The if it is the problem, which I believe so, Chage your fluid to Penzoil Syncromesh or RedLine MT-90, those are legit bad ay es es tranny fluids.

10-02-2012, 10:09 PM	#1
Mista Lee Zilvia FREAK! Join Date: May 2008 Location: Riverside, CA Age: 29 Posts: 1,003 Trader Rating: (26) Feedback Score: 26 reviews	manual tranny problem So this problem came out of the blue.. 5 speed in my vert doesn't want to go into gear sometimes. It seems like this problem only happens with 1-3 gears. When I am able to shove it into gear, the car will want to move forward even when the clutch is fully depressed and also makes a clunking sound coming from the tranny. When in reverse, it's the same thing and a clunking noise is even present. Weird thing is that these problems go away after driving the car for a couple miles. After that I would be able to go into gear perfectly, but when driving the car after it's cooled down and has been sitting for a couple hours, the problem comes back.. This problem is only when the car is running, when the car is off, i'm able to go through all the gears normally.. Car has an ACT 6 puck clutch, resurfaced flywheel, and a circuit sports short shifter as far as mods dealing with the tranny.. Thanks for any input guys __________________ Last edited by Mista Lee; 10-02-2012 at 11:03 PM..

10-02-2012, 10:16 PM	#3
Mista Lee Zilvia FREAK! Join Date: May 2008 Location: Riverside, CA Age: 29 Posts: 1,003 Trader Rating: (26) Feedback Score: 26 reviews	The rod on the clutch pedal has been adjusted a couple times, its actually almost through the whole rod __________________

10-02-2012, 11:02 PM	#5
Mista Lee Zilvia FREAK! Join Date: May 2008 Location: Riverside, CA Age: 29 Posts: 1,003 Trader Rating: (26) Feedback Score: 26 reviews	Fluid is good. __________________

10-03-2012, 07:47 AM	#6
shift_down Zilvia Junkie Join Date: Sep 2012 Location: Tulsa Oklahoma Age: 31 Posts: 313 Trader Rating: (0) Feedback Score: 0 reviews	sounds like tranny fluid. When the car warms up, you can shift perfectly? What tranny fluid are you using? Let me ask you this, If you let the car run for 10 minutes, without driving it, then can you shift good? if yes, then it is the tranny fluid. __________________ Ka24 t3/t04b + Z32MAF + 550 subys + Walbro 255 + enthalpy Tune + 91 octane Last edited by shift_down; 10-03-2012 at 09:01 AM..

10-03-2012, 10:11 AM	#7
Mista Lee Zilvia FREAK! Join Date: May 2008 Location: Riverside, CA Age: 29 Posts: 1,003 Trader Rating: (26) Feedback Score: 26 reviews	I remember putting the cheapest Valvoline 7590 that was available at the moment. I'll see what happens if I let it sit for that long. Thanks __________________

10-02-2012, 10:13 PM	#2
Nidd Leaky Injector Join Date: Dec 2009 Location: Northern IL Age: 32 Posts: 85 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like clutch isn't fully disengaging. Have you tried to adjust the rod connecting to the pedal master cylinder? Also check the slave on the trans.

10-02-2012, 10:30 PM	#4
kilamax03 Zilvia Junkie Join Date: May 2012 Location: california Posts: 490 Trader Rating: (4) Feedback Score: 4 reviews	check your fluid for the master clutch cylinder make sure its full

10-03-2012, 10:50 AM	#8
shift_down Zilvia Junkie Join Date: Sep 2012 Location: Tulsa Oklahoma Age: 31 Posts: 313 Trader Rating: (0) Feedback Score: 0 reviews	ok cool cool. The if it is the problem, which I believe so, Chage your fluid to Penzoil Syncromesh or RedLine MT-90, those are legit bad ay es es tranny fluids. __________________ Ka24 t3/t04b + Z32MAF + 550 subys + Walbro 255 + enthalpy Tune + 91 octane

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