Help with clutch; mushy pedal
The clutch was installed 10 days ago. Since then, the pedal feel and travel have deteriorated as the car warms. Specifically, the clutch pedal starts to get spongy, then mushy(technical terms here), then after a certain point it won't return to the full position.
At first, I thought it was a fluid related problem. Possibly air in the line. I just had it checked, and there was no air. I also thought since it seems related to heat, that the fluid was breaking down over time. The fluid had no visual imperfections. So, the problem is not due to fluid. So it's a mechanical issue. And it is definitely related to heat. What could it be? As an example of the heat issue; last night at 9pm I drove to get some starbucks, about 15 miles away. It was still 90 degrees outside, and by the time I was in the drive-thru the pedal was acting up again. When I left, I took the interstate home. After getting off the interstate, the pedal was fine. I attribute this behavior to cooling. I really need to get this taken care of. The commute to work isn't a problem. But the commute to home has become a daily adventure, wondering if I'll make it. Before I go to the dealer, I really need some solid ideas on what the problem may be. |
I think you might need a stainless steel clutch line.
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That's what I've determined. They're about $35, so even if it doesn't work, it's not a huge loss.
Thanks for the tip. |
No problem. :)
BTW.. Where are you getting your SS clutch line? |
Sgp racing is one:
http://sgpracing-store.stores.yahoo....ststcllif.html And here's another place: http://www.importpartspro.com/tesscllini35.html And Sharif also sells a carbon-kevlar line, for $50: http://www.importpartspro.com/tesscllini35.html |
Trey. I seen your post over on the 350z board. When I had my other VQ I ended up putting on the JWT clutch and flywheel. Before I did my clutch pedal wouldn't come back up after depressing it. Yes this only happened when hot (stop and go traffic). If you can...... Shift in to neutral and give a couple of good shots of gas(RPM's around 5K). If your pedal comes back it's probably your pressure plate is not releasing all the way. If you still have a soft pedal still it could and probably is your clutches master cylinder and/or the slave unit. This was a big problem on the Altima's. It's probably one or the other and I hope it's not both for you. I read your first post about this mod being not as good as you thought, but when I had mine done it was noticeable for sure. I never really like mixing and matching flywheels and clutches but if they told you it'll work..... who am I to say. Good luck to you.
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The same thing happens to my clutch pedal when its really hot outside(Atlanta stop and go traffic). Im thinking a stainless steel line should help with it.
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Originally Posted by RebelinRI
Trey. I seen your post over on the 350z board. When I had my other VQ I ended up putting on the JWT clutch and flywheel. Before I did my clutch pedal wouldn't come back up after depressing it. Yes this only happened when hot (stop and go traffic). If you can...... Shift in to neutral and give a couple of good shots of gas(RPM's around 5K). If your pedal comes back it's probably your pressure plate is not releasing all the way. If you still have a soft pedal still it could and probably is your clutches master cylinder and/or the slave unit. This was a big problem on the Altima's. It's probably one or the other and I hope it's not both for you. I read your first post about this mod being not as good as you thought, but when I had mine done it was noticeable for sure. I never really like mixing and matching flywheels and clutches but if they told you it'll work..... who am I to say. Good luck to you.
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Odd. Not sure how the PP not release when cold/hot. It's just a spring right? Do the G35 TB bearings still ride on the input shaft of the tranny? Maybe it wasn't lubed correct and the tranny is getting hot and decreasing the clearances. Thus the bearing isn't moving freely
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Originally Posted by RebelinRI
Trey. I seen your post over on the 350z board. When I had my other VQ I ended up putting on the JWT clutch and flywheel. Before I did my clutch pedal wouldn't come back up after depressing it. Yes this only happened when hot (stop and go traffic). If you can...... Shift in to neutral and give a couple of good shots of gas(RPM's around 5K). If your pedal comes back it's probably your pressure plate is not releasing all the way. If you still have a soft pedal still it could and probably is your clutches master cylinder and/or the slave unit. This was a big problem on the Altima's. It's probably one or the other and I hope it's not both for you. I read your first post about this mod being not as good as you thought, but when I had mine done it was noticeable for sure. I never really like mixing and matching flywheels and clutches but if they told you it'll work..... who am I to say. Good luck to you.
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Originally Posted by Jeff92se
Odd. Not sure how the PP not release when cold/hot. It's just a spring right? Do the G35 TB bearings still ride on the input shaft of the tranny? Maybe it wasn't lubed correct and the tranny is getting hot and decreasing the clearances. Thus the bearing isn't moving freely
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Which line did you go with, Trey?
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I purchased the normal SS line from sgp racing.
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Originally Posted by RebelinRI
Trey. I seen your post over on the 350z board. When I had my other VQ I ended up putting on the JWT clutch and flywheel. Before I did my clutch pedal wouldn't come back up after depressing it. Yes this only happened when hot (stop and go traffic). If you can...... Shift in to neutral and give a couple of good shots of gas(RPM's around 5K). If your pedal comes back it's probably your pressure plate is not releasing all the way. If you still have a soft pedal still it could and probably is your clutches master cylinder and/or the slave unit. This was a big problem on the Altima's. It's probably one or the other and I hope it's not both for you. I read your first post about this mod being not as good as you thought, but when I had mine done it was noticeable for sure. I never really like mixing and matching flywheels and clutches but if they told you it'll work..... who am I to say. Good luck to you.
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Let us know how the Ss clutch line does. I also picked up the SGP one, but I'm a ways off from installing the clutch/flywheel... ...I hope.
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