I bought a used g37s with 11600 miles in april, and noticed the clutch was getting hot after driving it for no more than 10-15 minutes. If I pulled up to a stop sign or was trying to move up in traffic the car would shudder as I feathered the clutch to get into first. I complained to the dealer and he agreed it didn't seem normal. I had the clutch and the dual mass flywheel swapped for new on the house. The car has 15k miles on it now and I will be taking it back for the maintenance and oil change, but the clutch is still acting up. I have a 93 3 series BMW with 160k miles, granted it has a solid flywheel, but I have no issues whatso ever with that clutch. I can slip it from a stop perfectly smooth at barely 10 rpm over idle. Is this just a trait of the g37, or of a dual mass flywheel, or did I buy a lemon?
Th clutch holds and I have no other issues with the drivability, it just is not very smooth into first gear. My LS1 Camaro's T56 engaged smoother (imagine that). Does anyone else notice this?
It is very quiet therees not much chatter or anything, but its frustratingly shaky sometimes. Ideas?
Clutch / DMF concerns
Welcome to NICO!
I have an 05 coupe 6MT...I feel your pain. First let me say that the dual mass flywheel has nothing to do with the clutch engagement. The reason they use a dual mass design is because the transmission has beefy gears that have lots of chatter if the driveline pulses are not smoothed out. This is what the duel mass flywheel does-smooth out the pulses. To make things worse, the transmission case is thin in order to save weight. So any noise will be noticeable. If you replace the dual-mass flywheel with a solid lightweight one, you WILL have chatter while in neutral and at low RPMs.
So, let me guess...you have a small engagement point...probably near the top of the pedal travel. There are some things you can do to adjust this.
Check out the G-series FAQ (link in my sig) and look for the clutch adjustment thread. There is a turnbuckle bolt that can be adjusted to increase the engagement point of the clutch pedal.
Another thing to try is to do a burnout...does the clutch pedal stick to the floor when you engage at high RPMs (over 4k)?
I have an 05 coupe 6MT...I feel your pain. First let me say that the dual mass flywheel has nothing to do with the clutch engagement. The reason they use a dual mass design is because the transmission has beefy gears that have lots of chatter if the driveline pulses are not smoothed out. This is what the duel mass flywheel does-smooth out the pulses. To make things worse, the transmission case is thin in order to save weight. So any noise will be noticeable. If you replace the dual-mass flywheel with a solid lightweight one, you WILL have chatter while in neutral and at low RPMs.
So, let me guess...you have a small engagement point...probably near the top of the pedal travel. There are some things you can do to adjust this.
Check out the G-series FAQ (link in my sig) and look for the clutch adjustment thread. There is a turnbuckle bolt that can be adjusted to increase the engagement point of the clutch pedal.
Another thing to try is to do a burnout...does the clutch pedal stick to the floor when you engage at high RPMs (over 4k)?
Hmmm... I don't know that I am necessarily complaining about where it grabs, pedal feel, noise etc. The only time I notice any problems is when I am feathering the clutch in a situation be it on a hill or flat in traffic, crawling out from a stop sign etc. on a normal everyday kind of condition. When I am feathering the clutch to get into first gear I get a ton of vibration through the car as if the flywheel was warped or something. When I start the car cold the first few shifts work like magic, but once the car gets warm it is a bit coarse with the engagement, and this is frustrating. The clutch and flywheel have less than 3k miles on them. I am wondering if I can already have hotspots on the flywheel for the second time since May. The last time they replaced the whole assembly because it can not be resurfaced.