Exedy Mach 600 Clutch

[W3bb3r04]

I contacted Exedy about their pressure plate clamping force and I was told it was 3372 lbs.
Stock is 2650 lbs.


http://s197forum.com/forum/showthread.php?t=63759&highlight=exedy+pressure+plate

Yeah the guy who built the clutch looked up what the slave cylinder is rated at and he said 3200 is about as far as he would go. Hopefully this bad boy feels good!


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[tbrock]

How did you spend $4k?

Lets just say I spent a year chasing McLeods bad floater plates. My tranny was out of the car 4 times, 2 different flywheels, plus the cost of the Exedy to replace the faulty McLeod clutch. I hated my car for that year. Now with the Exedy I love it again.

 

[BIGCHRISS197]

Lets just say I spent a year chasing McLeods bad floater plates. My tranny was out of the car 4 times, 2 different flywheels, plus the cost of the Exedy to replace the faulty McLeod clutch. I hated my car for that year. Now with the Exedy I love it again.

Ive had my tranny out 4 times this past month :facepalm lol

 

[nbk92]

Lets just say I spent a year chasing McLeods bad floater plates. My tranny was out of the car 4 times, 2 different flywheels, plus the cost of the Exedy to replace the faulty McLeod clutch. I hated my car for that year. Now with the Exedy I love it again.

I too am having major problems with my McCleod. My mcCleod is a piece of shit. Sent it back to them last summer so they could fix the problem. McCleod rebuilt the whole clutch. Now 1400 miles later, with the correct break in, the clutch is worse than ever. Besides sticking in every gear, I have to turn the car off to get her in reverse. Also, no modulation. Now I don't know what to do, or what clutch to get.

 

[BruceH]

McLeod clutches are very sensitive to correct torque values, torque patterns, and have very specific shimming from the factory. Mess with the shims, over torque, and warp the floater and it's not going to work.

Not saying that's what happened to those who have had bad experiences but unless you turned the wrenches you will never know if a problem is from the good n tight torque method or a mechanic taking everything apart and screwing up the shimmed clearances. Some of the torques are as low as 22 ft. lbs. iirc. It takes alot of willpower not to give it a little extra because it just doesn't seem like enough to hold parts together but it does.

 

[BIGCHRISS197]

I too am having major problems with my McCleod. My mcCleod is a piece of shit. Sent it back to them last summer so they could fix the problem. McCleod rebuilt the whole clutch. Now 1400 miles later, with the correct break in, the clutch is worse than ever. Besides sticking in every gear, I have to turn the car off to get her in reverse. Also, no modulation. Now I don't know what to do, or what clutch to get.

That sounds more like a slave cylinder problem

 

[Kidd]

Just got off the phone with the clutch place. He said he could give me a dual friction clutch with a 3200 lb pressure plate which the slave would work with for $325. That is including a new slave cylinder too. Kinda hard to pass that up.

Going to keep an eye on this RJ, that is a smoking price for a good clutch! I hope I don't have to worry about my clutch for a while but its good to know my options for later.

McLeod clutches are very sensitive to correct torque values, torque patterns, and have very specific shimming from the factory. Mess with the shims, over torque, and warp the floater and it's not going to work.

Not saying that's what happened to those who have had bad experiences but unless you turned the wrenches you will never know if a problem is from the good n tight torque method or a mechanic taking everything apart and screwing up the shimmed clearances. Some of the torques are as low as 22 ft. lbs. iirc. It takes alot of willpower not to give it a little extra because it just doesn't seem like enough to hold parts together but it does.

I never realized how light 25ft. lbs. Where until I got a TQ wrench. Now I know why I have broken so many bolts off in the past lol

 

[skwerl]

McLeod clutches are very sensitive to correct torque values, torque patterns, and have very specific shimming from the factory. Mess with the shims, over torque, and warp the floater and it's not going to work.

Not saying that's what happened to those who have had bad experiences but unless you turned the wrenches you will never know if a problem is from the good n tight torque method or a mechanic taking everything apart and screwing up the shimmed clearances. Some of the torques are as low as 22 ft. lbs. iirc. It takes alot of willpower not to give it a little extra because it just doesn't seem like enough to hold parts together but it does.

My mechanic claims to have bad luck with the Allen head fasteners coming loose so he used locktite on every bolt when installing my clutch. A much better method than overtightening everything.

 

[sportinawoody]

Besides sticking in every gear, I have to turn the car off to get her in reverse. Also, no modulation. Now I don't know what to do, or what clutch to get.

try putting a vacuum on the master cylinder, i had this problem recently after replacing my trans and vacuum bleeding the system. i did it again for 2 more minutes and it solved my same issues

 

[NUTCASE]

from what I am reading in here it sounds like some people don't like the exedy. I just put a mach 500 in mine and I definatly like it better than stock clutch. the pedal is a little bit heavier but its not anything I can't get over.

also it does enguage really close to the floor. but as I have been breaking it in (only have 300 miles mostly hyway) the enguagement point seems to be working itself to a more reasonable location.

if the McLeod is really that much better I must just be used to 300lb pedal enguages like a mac truck clutches LOL.

 

[W3bb3r04]

Mine has been great today!

 

[demarcom]

Op.. did you install the custom clutch from. Nashville? How did it go?

 

[W3bb3r04]

Op.. did you install the custom clutch from. Nashville? How did it go?

Yeah I did! Its doing great! Pulling the trans sucked because I did it by myself but the clutch is perfect. Releases In the middle and not much firmer than stock.

 

[NUTCASE]

long tube headers?

if not you don't know the real pain of doing a clutch LOL

 

[tbrock]

I too am having major problems with my McCleod. My mcCleod is a piece of shit. Sent it back to them last summer so they could fix the problem. McCleod rebuilt the whole clutch. Now 1400 miles later, with the correct break in, the clutch is worse than ever. Besides sticking in every gear, I have to turn the car off to get her in reverse. Also, no modulation. Now I don't know what to do, or what clutch to get.[/QUOTE

Mach 500 is working great for me.

 

[nbk92]

McLeod clutches are very sensitive to correct torque values, torque patterns, and have very specific shimming from the factory. Mess with the shims, over torque, and warp the floater and it's not going to work.

Not saying that's what happened to those who have had bad experiences but unless you turned the wrenches you will never know if a problem is from the good n tight torque method or a mechanic taking everything apart and screwing up the shimmed clearances. Some of the torques are as low as 22 ft. lbs. iirc. It takes alot of willpower not to give it a little extra because it just doesn't seem like enough to hold parts together but it does.

I hear ya. i did do the install myself, and followed all torque specs. I had this problem before, and sent the clutch back to McCleod. After McCleod rebuilt the unit i reinstalled the clutch. It was great for the time I was breaking it in. Then, the problems started all over again.

That sounds more like a slave cylinder problem

try putting a vacuum on the master cylinder, i had this problem recently after replacing my trans and vacuum bleeding the system. i did it again for 2 more minutes and it solved my same issues

I am willing to try anything at this point.

QUOTE

Mach 500 is working great for me.[/QUOTE]

Might just might be switching myself

 

[NUTCASE]

My Mach 500 is almost broken in and the enguagement point is very reasonable for a new aftermarket clutch.

I probobly shouldnt have yet but I banged some gears with it last night, zero issues. barked the tires shifting 4th at about 105ish

 

[lethe]

I decided to give the mach 600 and one of their flywheels a try. Im curious to see how it does. I won't be installing it until i put my motor/turbo in.

 

[Speed+Clinic]

They will work with a stock flywheel but it's not optimal. There is an older style of frpp flywheel that works real well and it's pretty inexpensive. Jeremy used it with his 3650 and rst. Sorry I can't think of the name right now.

You can see where the inner portion of clutch doesn't contact the flywheel from the wear pattern. This was with a Fidanza flywheel. When I installed the 6060 and new rst I also sprung for a new McLeod flywheel for full clutch coverage.

It still held power but sometimes the clutch disengagement was a little sticky because that ridge would hang up for a split second.

The flywheel is the stock 99-00 fly wheel if I am not mistaken. It has a lot more material towards the middle

 

[Taxman]

If I could do it over I would have gone for the RST right off the bat. If I had, I probably would not have gotten so frustrated with my transmission and ended up spending over $5K upgrading to the T56. The other issue I had with the extremely low disengagement point was that the gears didn't seem to disengage far enough and I had a slight gear clash on every single shift. No big deal on the street but it made drag racing very frustrating. I ended up having to drive my car like I hated it, forcing the transmission on every shift instead of having it simply drop into gear.

This might not be a big deal for a garage queen but I enjoy driving my car a lot. The Exedy made driving a lot less enjoyable.

Oh really?