Touchy Clutch

Denny McLain

As a rule of thumb no automotive manufacturer is going to purchase anything unnecessary and if they can save a little money here and there; as they are business of making money, not spending it. Making an assumption the reason Nissan uses the more expensive dual mass flywheel is because the transmission with rattle in neutral and be noisy with a regular single mass flywheel.

Another potential drawback of replacing the heavier dual mass with a lighter single mass is if you think the car is tricky to drive now, just wait till you have a 10 pound aluminum flywheel. Great for racing, horrible for street driving. What is your intention for the car?

I've had two dual mass flywheels resurfaced, the first worked great but the second went out early. Maybe it's because of a pretty large cam (245/248 with .630 lift) whose rough idle chews up dual mass flywheels or it was the resurfacing. Frankly not sure. There are sources on the internet whom guarantee their work in resurfacing them though.

Betting money also Nissan does not manufacturer the flywheel. Guessing a German company (Luk) probably makes them as they do for the C4 Corvette and many other European cars. Before you replace your flywheel from Nissan, I'd certainly check out a good Luk distributor as you may get it for about half price.

1slow370

i noticed after they replaced my transmission and slave as a unit that the clutch got smoother as well and as i had it done a few weeks ago i assume it has the newer slave cylinder.

Denny McLain

Not really clutch related (Maybe??) but a simply drive train fyi.......

It's called a "magicians trick." After the Stillen header/exhaust installation I could hear a drive train noise that I kept thinking was related to the install. After a bunch of times jacking the car up checking out the exhaust, finally broke down and took it to the dealer yesterday to see if they could find the noise.

Turns out it's the driveshaft. A bit alarming as the car has never been raced and is not abused. Sure, I drive it, but the car has had three trial 0-80's to see if the Cobb AccessPort worked on 0-60 times. That was on a regular road and that is all! Taking cars out the hole usually does the damage but the heavy flywheel spinning the tires after a quick shift may have been the prime contributor or just plan factory bad driveshaft.

Stuff like this comes with the territory on a brand new model. Damn glad I didn't take it to a track as planned this fall or I'd probably be still walking home.

1slow370

how is a slave cylinder and throwout bearing assembly not clutch related? My clutch is actually engaging different from before and they never replaced the disc. It actually is smoother while driving it to the point where before when it was all of a sudden engaging to now i find that i 'm riding the cluth now and have to move my foot faster then before so i'm not destroying it because before it would engage much faster.