e_racer1999 Posted May 29, 2008 Share #1 Posted May 29, 2008 Well, big thanks to Rex for coming over and helping me out and letting me borrow the tranny jack!Anyway, here's the story. Tranny blew out, so I replaced the tranny with another 5 speed, replaced the clutch master and slave, replaced the clutch fork (just in case), replaced the clutch collar with the correct 280Z one, installed a freshly resurfaced flywheel (sprayed with brake parts cleaner to remove any grease), installed new throwout bearing, and installed the brand new centerforce II clutch/pressure plate.Putting it back in was a bitch and a half, but I bled the clutch and got all the air bubbles out. Now to the meat of the post:After replacing all of this, I was expecting epic grip. Instead, all I got was epic slip. What's up? Is this what I'm supposed to feel during Centerforce's 450-500 mile break in period, or did I get a bad clutch? I really hope it's standard break in because I purchased this from MSA 2 years ago (well past the 90 day guarantee).Jason Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/ Share on other sites More sharing options...
Arne Posted May 29, 2008 Share #2 Posted May 29, 2008 Do you have any free play at the pedal or the slave-to-fork interface? Which slave did you use, early or late? Does the slave match the fork? Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249105 Share on other sites More sharing options...
e_racer1999 Posted May 29, 2008 Author Share #3 Posted May 29, 2008 freeplay? no. I used the early, spring-loaded slave with the correct 240Z fork, so I'm pretty sure they match. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249106 Share on other sites More sharing options...
Rainman Posted May 29, 2008 Share #4 Posted May 29, 2008 Sounds like you need to adjust the clutch pedal and slave cylinder. Let me know and I'll post the instructions for an early 240Z if it'll help. You can find it in the FSM I'm sure but my input will come from a Haynes manual...Tom. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249109 Share on other sites More sharing options...
e_racer1999 Posted May 29, 2008 Author Share #5 Posted May 29, 2008 i'll give that a shot tomorrow when i get home from work. With a new slave cylinder, should the adjustment nut be all the way out? It was like that when I took it out of the box, but I had to bring it back in to get it to connect with the fork. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249114 Share on other sites More sharing options...
jmortensen Posted May 29, 2008 Share #6 Posted May 29, 2008 i'll give that a shot tomorrow when i get home from work. With a new slave cylinder, should the adjustment nut be all the way out? It was like that when I took it out of the box, but I had to bring it back in to get it to connect with the fork.You should have maybe 1/4" or 3/8" from the retracted position till the ball hits the fork. If you have no freeplay then the pressure plate is always being pushed on. You also need free play between the pedal and the master. Maybe 1/8" to 3/16" there. You can also use the slave adjustment to get the engagement to a comfortable height. If the adjustment were too far out the clutch would disengage right at the top of the pedal travel (assuming everything else were fairly close). Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249121 Share on other sites More sharing options...
Rainman Posted May 29, 2008 Share #7 Posted May 29, 2008 Included below are the instructions for proper adjustment of the clutch slave cylinder and the clutch pedal with figures included... Hope this helps! Clutch adjustment (early 240Z models): 1. Detach the return spring from the clutch slave cylinder. 2. Loosen the locknut on the pushrod and then turn the adjusting nut until any movement in the withdrawal lever is just removed. 3. Back off the adjusting nut 1.5 turns and then tighten the locknut and reconnect the return spring. 4. When this adjustment is correctly carried out, a clearance between the face of the release bearing and the fingers of the diaphragm spring will be provided of 0.79 inches and a free movement at the clutch pedal of 0.39 to 0.59 inches. Clutch pedal adjustment (240Z Models): 1. Set the upper surface of the pedal pad 8.0 inches from the metal surface of the "toe board". Do this by adjusting the length of the master cylinder pushrod. The free movement at the pedal should be between 0.39 and 0.59 inches, otherwise adjust the slave cylinder pushrod as described in the previous section. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249170 Share on other sites More sharing options...
e_racer1999 Posted May 30, 2008 Author Share #8 Posted May 30, 2008 brilliant! that worked. thanks guys... now i just have to get used to the clutch engaging just off the floor Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249206 Share on other sites More sharing options...
jmortensen Posted May 30, 2008 Share #9 Posted May 30, 2008 You can play around with the slave to adjust that closer to where you want it. So long as you still have free play you should be fine. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249273 Share on other sites More sharing options...
e_racer1999 Posted May 31, 2008 Author Share #10 Posted May 31, 2008 well, it will be a little while. After finally getting the clutch where i want it and finally getting the speedo working my engine blew. So now the tear down commences! Sounds like a broken rod Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249329 Share on other sites More sharing options...
Rainman Posted May 31, 2008 Share #11 Posted May 31, 2008 Ooooohhhhhh Noooooo! I'm so sorry.... Make the best of it though, I'm sure you'll learn a lot. Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249348 Share on other sites More sharing options...
geezer Posted May 31, 2008 Share #12 Posted May 31, 2008 well, it will be a little while. After finally getting the clutch where i want it and finally getting the speedo working my engine blew. So now the tear down commences! Sounds like a broken rod Bummer Jason, If it isn't one thing it's... Link to comment https://www.classiczcars.com/topic/28274-centerforce-ii-new-install-slipping/#findComment-249350 Share on other sites More sharing options...
Yarb
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