Please help with my clutch problems
Please help with my clutch problems I recently converted my car that used to be an a4 to a m6. I traded with a friend with a 981le m6 car. The setup it had was a stock 98 m/c, t56, rev lok II clutch. The clutch enaged close to the floor and grabbed very well when racing in this car. I finsihed the swap and the car drives around okay. The problem is that the clutch engages only when the master cylinder rod is completely out. The pedal is at the top. I had to buy a new master cylinder b/c I messed up the seal on the 98 m/c when I was bleeding it incorrectly. I ordered a stock style adjustable m/c from rapid motorsports. It is only adjustable by the fact that the rod end is threaded. I have played with it and have right now where the m/c has 100% range of motion. It goes all the way in out when the clutch goes in and out. I can't bang gears at high rpm's b/c i beleive the clutch isn't grabbing. It's not fully engaged. I've definately made sure I bled the hell out of the hydraulics. I also know this clutch isn't suppose to need to be shimmed, but I tried that as a last resort also. It actually did not change the engagement of the clutch at all, but I am not sure what exactly that means is wrong. I'll prolly do the drill mod later after I get the clutch to engage, but that isn't the problem right now since it is never fully engaging. Any ideas at all?
Re: Please help with my clutch problems If it's not fully engaging then you should shorten the rod a little. Don't shorten it a bunch all at once cause it might not fully disengage then. Play around with it and you should find a happy medium.
Re: Please help with my clutch problems Thanks. I went ahead and shortened the rod a little. The clutch is definately engaging. It engages real close to the floor which is fine. I can also hit gears at redline, but I'm wondering if I am having to muscle it too much.
I really don't understand the hydraulics the way I thought I did. All that it did by me shortening the rod was make it so that when I press the pedal in to disengage the pressure plate the plunger does not go in as far which sends less fluid to the slave. Why does that make the clutch engage earlier and grab better?
Also, I think I should do the drill mod to see if it helps it slip into gear smoother at high rpm's. Will this effect the engagement of the clutch at all or just help it disengage at high rpm's only?
I really don't understand the hydraulics the way I thought I did. All that it did by me shortening the rod was make it so that when I press the pedal in to disengage the pressure plate the plunger does not go in as far which sends less fluid to the slave. Why does that make the clutch engage earlier and grab better?
Also, I think I should do the drill mod to see if it helps it slip into gear smoother at high rpm's. Will this effect the engagement of the clutch at all or just help it disengage at high rpm's only?
Re: Please help with my clutch problems Do the drill mod, you'll be glad you did. It will help your clutch performance all over the RPM range but is most noticeable at high RPMs. It won't effect the clutch engagement points so no worries there.
As for the rest of the hydraulic stuff, think about it like an old mechanical linkage setup. If you had it ajusted too far out it wouldn't engage or too far in and it wouldn't disengage. It's the same principle it's just being done by fluid instead of steel. I know that's about as clear as mud but I've had one or three too many to really write something good on the subject.
Hope this helped.
As for the rest of the hydraulic stuff, think about it like an old mechanical linkage setup. If you had it ajusted too far out it wouldn't engage or too far in and it wouldn't disengage. It's the same principle it's just being done by fluid instead of steel. I know that's about as clear as mud but I've had one or three too many to really write something good on the subject.
Hope this helped.
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Joined: Dec 2001
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From: Germantown, MD
Re: Please help with my clutch problems The stock M/Cs work sometimes and don't others. I returned my Mcleod to McLeod for repairs. In the meantime, I put the stocker back in. It was so easy to bleed and shifted very smoothly. But just like you described, high RPM shifts werre a no go. I'm pretty sure I had the drill out mod done on that setup. Once I got the new McLeod M/C and got it properly bled, high RPM shifts were a breeze 
I know it's expensive, but you might want to consider the McLeod M/C.
Mike
I know it's expensive, but you might want to consider the McLeod M/C.
Mike
Re: Please help with my clutch problems
The stock M/Cs work sometimes and don't others. I returned my Mcleod to McLeod for repairs. In the meantime, I put the stocker back in. It was so easy to bleed and shifted very smoothly. But just like you described, high RPM shifts werre a no go. I'm pretty sure I had the drill out mod done on that setup. Once I got the new McLeod M/C and got it properly bled, high RPM shifts were a breeze
I know it's expensive, but you might want to consider the McLeod M/C.
Mike
I know it's expensive, but you might want to consider the McLeod M/C.
Mike
Re: Please help with my clutch problems Well, I went ahead and did the drill mod. It seems to have helped some, but I still have to muscle it too much at high rpm's. I'm going to order a mcleod adj m/c. I'll let yall know how it goes.
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Re: Please help with my clutch problems Sounds like a similiar problem I had installing a friends clutch. Come to find out the adjustable master wasnt fully modded. It only had the threaded rod end on it. To make it fully adjustable you must take apart the master cylinder and either remove or cut some of the cone spacer which acts as an internal stop. Without doing that...that so called adjustable master is far from it.
Do a search in this section for posts by me and there is some discussion on it. At the end someone posted a link on how to. Its very informative and should take car of your problems. It will allow you to displace more fluid to completely disengage your clutch allowing much easier shifting.
Do a search in this section for posts by me and there is some discussion on it. At the end someone posted a link on how to. Its very informative and should take car of your problems. It will allow you to displace more fluid to completely disengage your clutch allowing much easier shifting.
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