Is the LS7 clutch still the way to go?
09-14-2016, 10:58 AM
#46
Teching In
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can you guys double check my part numbers?
LuK LFW191 Flywheel
LuK 04-216 Clutch Kit
My shop called Luk, and they said "that clutch will never work in that car". Then they read off, what I think are the caddy part numbers. He's going to check on the cost to have everything balanced, but the machine shop might just to say "yea, it looks good" since they were new parts.
LuK LFW191 Flywheel
LuK 04-216 Clutch Kit
My shop called Luk, and they said "that clutch will never work in that car". Then they read off, what I think are the caddy part numbers. He's going to check on the cost to have everything balanced, but the machine shop might just to say "yea, it looks good" since they were new parts.
09-14-2016, 11:15 AM
#47
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Looks like the same stuff I bought (haven't installed yet), and a decent machine shop should simply do what you the customer asks vs saying the parts should be ok because they look new.
If it was installed and shifting, but had a vibration I would think it was a balancing issue not a fitment issue.
I did a clutch on an audi a4 quattro, and when done had a horrible vibration. Turned out it was the drive shaft -- I'd managed to tweak/bend it when removing for the clutch install. One new (used) driveshaft later, and it was all good.
If it was installed and shifting, but had a vibration I would think it was a balancing issue not a fitment issue.
I did a clutch on an audi a4 quattro, and when done had a horrible vibration. Turned out it was the drive shaft -- I'd managed to tweak/bend it when removing for the clutch install. One new (used) driveshaft later, and it was all good.
09-14-2016, 11:49 AM
#48
Have them rotate the drive shaft and see if the gets better or worse. Its quick and easy for them. Rotate 90 deg. Maybe they didn't market it when the took it off. Also those are correct numbers for your parts.
09-14-2016, 12:00 PM
#50
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My guess is it needs/needed balanced -- and if it was balanced, whoever put the clutch in didn't pay attention/realize it was a balanced unit and it's now no longer aligned the same as when it was balanced.
Even a small amount (grams) will cause a vibration in something spinning at the speeds the motor runs at.
There have been reports of LS7 clutches having vibrations if not balanced before install.
Even a small amount (grams) will cause a vibration in something spinning at the speeds the motor runs at.
There have been reports of LS7 clutches having vibrations if not balanced before install.
09-14-2016, 02:00 PM
#51
Staging Lane
I went with the LS9X kit when my slave cyl ate it. Ran in to an issue with the pressure plate after not being able to get the trans back in. When GM assembled the PP, they didn't center the captured clutch disc and the whole thing is non-concentric. Called the distributor and was told this was the 2nd or 3rd time he's had the same complaint. Going to try to throw it on a hydraulic press after work and see if I can center the disc. So that's one thing to look out for, for anyone going the LS9 route.
09-16-2016, 09:16 AM
#54
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FYI for anyone purchasing the LuK 04-216 clutch kit, it came with what appears to be the proper pilot bearing for an 05 LS6 in the package - at least it's an exact match visually
In my reading I'd come to the conclusion that I needed to purchase the pilot bearing separately to make sure I had the right one.
In my reading I'd come to the conclusion that I needed to purchase the pilot bearing separately to make sure I had the right one.
09-16-2016, 12:15 PM
#57
So my slave cylinder in my V blew over the weekend. Since the car has 104K miles, and the trans has to come down anyways, I figured it's probably a good time to do the clutch.
I've been doing a little reading, and it seems like the LS7 clutch was/is popular with stock and lightly modded cars, but it seems like most of the threads I've found are like 3-6 years old. Is the LS7 clutch still the one to go with?
I don't think this car will ever see more than a cam, headers, cut-outs and a tune in its lifetime.
If it is, I'm looking for part numbers. I saw a lot of people throwing around different part numbers over the years in different threads. I'm not sure what the most up to date parts are.
I've been doing a little reading, and it seems like the LS7 clutch was/is popular with stock and lightly modded cars, but it seems like most of the threads I've found are like 3-6 years old. Is the LS7 clutch still the one to go with?
I don't think this car will ever see more than a cam, headers, cut-outs and a tune in its lifetime.
If it is, I'm looking for part numbers. I saw a lot of people throwing around different part numbers over the years in different threads. I'm not sure what the most up to date parts are.
09-17-2016, 01:42 AM
#58
Staging Lane
The tool can only do so much and being that it's plastic it can't overcome the clamp load on the captured disc. If I aligned just the 2 discs, the floating disc was about 4-6mm out of concentric making it overhang one side and leaving the surface exposed on the other side. Imagine what that does when you try to pilot in to the crank. So while the trans would go in to both clutches just fine, it couldn't go in to the crank. Had to put quite a bit of pressure on the basket to release the pressure and slide the plate in to its proper place. Got the trans installed no problem after that.
Look at the gap at 1 o'clock compared to the gap at 7 o'clock.
09-17-2016, 09:40 PM
#60
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Got the car back last night. There's still a vibration right at 3k rpms, but it's much better than it was before.
I probably should have spent the money for a nicer part.
I probably should have spent the money for a nicer part.