Super Slow SS

iTrader: (9)

Ok so I have done some searches, but no one seems to have the major problem I encountered last night. I bought a new ls7 clutch and ls2 fw from spdc, threw it in last night and now my car drives like a paint shaker. I am deathly afraid of giving it any RPM so did I miss some balancing marks for the PP and FW or should I have had the whole assembly balanced .. taking it back out tonight .. need to know what I need to do with it to get it right .. thanks for the help.

PewterScreaminMach

iTrader: (7)

If you're pulling it anyways, I would have it balanced. It's not a chattering you're talking about, correct? but a constant shaking?

Super Slow SS

iTrader: (9)

nope, no noise and engaugement is good but anything over about 1200 RPM in any gear and I could mix margaretis on the dash I will need to find a machine shop that can do this work for me. But could it be that it was balanced and I missed it?

_JB_

iTrader: (33)

I noticed a little vibration when I installed mine. I took it to a local clutch shop and they said it was fine. How did you torque the flywheel and pressure plate bolts down?

Super Slow SS

iTrader: (9)

Mine is deff not fine. I used a star patern, whats the torque spec?

PewterScreaminMach

iTrader: (7)

Flywheel - 15, 37, 74 each pass respectively.

Pressure plate - 52

Super Slow SS

iTrader: (9)

im pretty sure I went over that .. but whats the chances I bent the FW? Really ...

PewterScreaminMach

iTrader: (7)

See edit to my previous post.

Super Slow SS

iTrader: (9)

sweet thanks .. but really .. how likey is that my problem?? I am taking it out .. and proly going to take it to a machine shop wed to make sure nothing is badly bent or out of balance. .. that is if I didnt miss some balance marks when I put it in .. if I can see that I did .. then im bolting it back on strate and giving it a shot ... But I would like to know it anyone has bought a clutch from them and if they come balanced and or marked?

Super Slow SS

iTrader: (9)

Thanks for the Help .. any other opinions??? Options to shoot for tonight or tomorrow night?

RyderTA

iTrader: (3)

How odd. I installed mine Friday and have been driving it problem free with no shaking. The write up on installuniversity said to tq the flywheel to 74, but didn't meantion progressivly doing it. I did it just to 74 and no issues here. Keep us posted with what you find out.

John02SS

iTrader: (47)

The clutches are not balanced as a unit. The pressure plate is 0 balanced and the flywheel is 0 balanced, but not always balanced when put together. Prolly the issue, as I just don't see the flywheel bending even if you way over exceeded the max torque on it. Good luck with it.

_JB_

iTrader: (33)

Correct me if I'm wrong, It's not really bending the flywheel but not allowing it to sit flat against the crank. It's worth a shot since you will have it all apart. Did you torque them down in star like pattern?

Super Slow SS

iTrader: (9)

Yupp ..

Jeff@TotalPerformanceEng

iTrader: (6)

If the flywheel is off or wobbly, it'll vibrate in neutral. Just rev it with the clutch pedal in or in neutral..

If it only does it while its in gear, then its almost an guaranteed out of balance issue..

Super Slow SS

iTrader: (9)

Does both not as bad in neutral because it doesnt have the rest of the drive train to shake my car with. But still noticable in neutral. But wont the PP and FW still be on the motor and thus still cause a vibration even if it is in neutral?

Jeff@TotalPerformanceEng

iTrader: (6)

Yes and no.

It is severly increased/decreased when the clutch is engaged..

My bet is on out of balance. That is, provided you installed the flywheel in the proper manner by seating the flywheel correctly. Its very difficult to not seat a flywheel corectly since it doesnt need to be pushed on very far..

Can you pull the lower inspection cover on the bellhousing with the car in the air? As long as your brave, leave the motor running and watch the flywheel.

But I would say just pull the darned thing and have it zero balanced..

Super Slow SS

iTrader: (9)

Thanks for the info .. I will be under it tomorrow, I am planning on pulling the tranny off and cranking it up to see what I can see. Then if it looks level im gonig to jerk it off and try to find somewhere that can balance it for me

95ttoplt1

iTrader: (3)

Does this Zero Balance apply to a 2000 LS1 in a Vette as well? I have a new CF Clutch and Steel Flywheel from different manufactures and was curious as to whether it need to be zero balaced or off balance identical to the stocker?

Gun5

iTrader: (37)

yep just did those numbers other day.. have run the car on the lift over 2500 and didn't notice any bad vibro's hopefully be driving it this week

if what looks level?