Onefast V

iTrader: (3)

So I had the ls9 clutch installed a while ago and had some engagement issues where it was very difficult to get into gear when running. Reverse was by far the worst . I have put almost 1200 miles on the new setup. I have put in a new slave, master, tranny mount, new atf fluid (syncromesh), bled many times with a power bleeder. So I came to the conclusion it must need to be shimmed. Well I pulled out the tranny measured the distance from the transmission surface to the top of the fully compressed slave with the throwout bearing. The measurement was. 1.58in. I then measured from the bellhousing surface to the pressure plate fingers. The measurement was. 1.68 in. So normally they recommend .175-.225 of spacing. So I'm at a loss for the issue as it obviously doesn't need the slave to be shimmed. Help please!

Dltreezan

What flywheel are you using?

Then the obvious question if you have anything other than the dual mass, did you get a spacer for the slave?

Onefast V

iTrader: (3)

I'm running the Katech flywheel. It is not dual mass and no spacer is needed to to the extra size of the twin disk pressure plate. It is designed to work with just flywheel+pp+slave from what I have been told.

Project GatTagO

iTrader: (7)

Have you contacted Katech?

Andrew

Onefast V

iTrader: (3)

Yes. They don't seem to have any good answers

Project GatTagO

iTrader: (7)

Did you get the whole kit from them or just the flywheel?

Andrew

Onefast V

iTrader: (3)

Just the flywheel. The clutch is the oem ls9 clutch so it came from elsewhere.

Project GatTagO

iTrader: (7)

Well, that might be your issue. From what I understand this isn't just a bolt in affair. Their kit includes other components besides the flywheel and ZR1 clutch.

Andrew

Onefast V

iTrader: (3)

For the ls9x kit, it is specifically a ls9 clutch with a katech flywheel and nothing more.
http://store.katechengines.com/mobil...ts-v-p247.aspx

Katech_Jason

iTrader: (19)

Difficulty going into first or reverse is usually due to the clutch not disengaging all the way or dragging.

Here are a few common problems to look for:
-Hydraulic system not bled entirely
-Hydraulic system leak
-Improper bleed procedure
-Bent disks (this can happen if you let the trans hang during installation)
-Other physical damage to the disks or flywheel

My advise is to post your bleed procedure so we can take a look at it. After that keep bleeding. Let us know if each time you bleed you're getting bubbles, or not. After that the next thing to try is a new clutch assembly, assuming the one you bought is damaged or defective. It's rare, but it can happen that the clutch is defective. Or it could have been bent during installation.

Hope that helps. Keep us posted.

Onefast V

iTrader: (3)

The hydraulic system was bled at least 5 times. I used a motive power bleeder. Hooked the bleeder up to the master cylinder pumped it up to the appropriate pressure (8-10 psi IIRC) and cracked the slave bleed line open for about 5 seconds. closed it, checked the motive bleeder pressure and made sure it was still feeding properly, then did that 3-4 more times. I followed this process about 5 times.

I have the transmission sitting on the floor now and there are no signs of wet marks/spots or any leaking of the hydraulic system (which is entirely new both slave and master).

I have not yet removed the clutch but this will be the next step in diagnosing the issue.

Katech_Jason

iTrader: (19)

I would try a manual bleed before you pull it apart.

Onefast V

iTrader: (3)

I did a two person manual bleed also prior to removing it with no improvement.

Onefast V

iTrader: (3)

Here are some photos of the clutch and pressure plate and flywheel.

furbe

Theres your problem in your last pics....

Only one bolt holding the flywheel on!

Solved!

NEXT!