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Old June 16th, 2014, 07:39 AM   #1
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New clutch slipping.

So my clutch has been slipping pretty bad the pass few weeks so finally got around to putting a new Luk oem clutch kit and Luk flywheel yesterday. Went to drive it and it's still slipping just as bad as before. Give it more than 1/4 to 1/2 throttle and it zooms to redline.
I'm wondering if the slave cylinder isn't allowing the throw out bearing to fully release and causing the slippage. Since I bought the car a year and half ago the car always seemed to slip on full throttle shifts from 1st to 2nd and 2nd to 3rd. Like it would take a second or two for the clutch to catch and move the car. I did the clutch valve delete a while back and didn't seem to help any. I did back out the clutch switch to allow the pedal to come up a bit and did seem to help a little.
Any suggestions other than just replacing the slave cylinder and master cylinder?
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Old June 16th, 2014, 09:35 AM   #2
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Did u have the pressure plate preset? I had a whole thread about it. Luk clutch doesn't come preset was the title
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Old June 16th, 2014, 09:54 AM   #3
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Nope just used the Honda special tool to compress the pressure plate fingers while installing the bolts. I'll search for it now.
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Old June 16th, 2014, 10:04 AM   #4
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I installed that same Luk kit but got mine from rock auto. I didn't really pay much attention to the pressure plate springs, just compressed it down using the Honda special tools and then torqued down the bolts. What's weird is the car is slipping just like before, and the old clutch disc was worn down to the rivets.
I'm probably just going to order a new slave, master cylinder, and rubber hose. If it still does the same thing then I have no fkin clue.
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Old June 16th, 2014, 10:45 AM   #5
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If u used the Honda tool u should be okay. It's probably something else.
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Old June 16th, 2014, 11:36 AM   #6
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I tried bleeding the clutch just now, pedal feels a little stiffer. Still slipping, mainly when it reaches 5k rpm and up.
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Old June 16th, 2014, 12:27 PM   #7
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Sounds like it wasn't set right. You have to physically hold it then tighten it down. If not, it won't be set correctly. It's probably thoroughly glazed over now too.
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Old June 16th, 2014, 12:44 PM   #8
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Idk, I compressed the pressure plate fingers until the tool wouldn't turn anymore and then torqued the bolts in a crisscross pattern per the service manual. Well just ordered a new slave, master cylinder, and hose. If it doesn't fix it I guess I'll just have to wait to save up for a clutchmasters setup. Fml.
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Old June 16th, 2014, 05:43 PM   #9
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what did you torque the pressure plate to? sounds to me like the pressure plate is over torqued.
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Old June 16th, 2014, 06:03 PM   #10
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19 lb feet I believe per the helms manual in a criss cross pattern using a 3/8" torque wrench. Also that 19 lb feet felt pretty light. Used red lock tight on the flywheel bolts and pp bolts.
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Old June 17th, 2014, 02:16 PM   #11
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Well just replaced the slave, master cylinder, and hose. Same result. The car doesn't feel as bad as Sunday. If I put the car in 5th or 6th and floor it the car will pick up speed gradually like normal, but if I downshift to 2nd or 3rd when I get pass 5000 or 5500 rpm the car will just stop pulling and race to redline. It's like the clutch just won't hold the power at high rpm but is perfectly fine with normal driving and shifting.
I guess it's going to have to come back apart and exchange my clutch.
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Old June 18th, 2014, 11:43 PM   #12
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Pressure plate may be bad then. Inspect the flywheel and make sure it's not glazed over too bad.
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Old June 19th, 2014, 08:40 PM   #13
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What's really confusing me is the fact that 1st gear will pull to redline and not slip at all but as soon as I go to second gear it's bouncing against redline like I'm still in first. It's just weird. I may pull my starter off tomorrow and see if I can check the position of the pressure plate springs. Won't have time to pull it all back apart until next next weekend.
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Old June 19th, 2014, 09:33 PM   #14
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Did u replace the throwout bearing?
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Old June 20th, 2014, 10:48 AM   #15
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Yup, new LuK flywheel with pilot beating, LuK clutch kit with throw out bearing. I'm worried now that maybe I put too much grease on the clutch disc splines and input shaft. I'll find out eventually.
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Old July 11th, 2014, 12:18 PM   #16
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Did you figure this out?
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Old July 11th, 2014, 07:18 PM   #17
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Not yet, but it's coming back apart tomorrow. I'll take some pics of the pressure plate after I take the trans off. I'm afraid I won't find anything wrong though. I got another LuK clutch kit from rock auto and I looked at the springs on the pressure plate but I'm not sure if they're set right or not.
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Old July 13th, 2014, 04:49 PM   #18
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Old July 13th, 2014, 04:52 PM   #19
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So I'm not really sure what to look for here. Nothing really stands out to me except for the grooves on the pressure plate. Anyone know if the pressure plate springs are in the correct place?
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Old July 13th, 2014, 05:36 PM   #20
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It's hard to see in the pic but I'm certain now that I put way too much grease in there. It's on the inside lip of the pressure plate and clutch disc.
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Old July 13th, 2014, 06:45 PM   #21
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Pressure plate has to be reset. Look at the springs its already 1\3 way out
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Old July 13th, 2014, 06:55 PM   #22
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Well I got another LuK clutch kit, I'll get the pressure plate tool tomorrow. Is there something in the pressure plate that you have to move to get the springs in the right place?
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Old July 13th, 2014, 06:59 PM   #23
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Damn I think I glazed the inside of the clutch disc with grease. I bet as soon as I started the motor the grease splattered off the splines and mainshaft.
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Old July 13th, 2014, 07:10 PM   #24
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before
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should look like this

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Old July 13th, 2014, 07:25 PM   #25
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Ok cool. Now when I compress the pressure plate fingers with the Honda special tool will the springs move back on there own or do I need to push them back? I didn't pay attention to the position of the springs the last time.
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Old July 13th, 2014, 07:30 PM   #26
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use the tool it will move it back into position
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Old July 13th, 2014, 07:42 PM   #27
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Thanks aznboi, I'll update the thread tomorrow.
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Old July 14th, 2014, 09:42 PM   #28
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Well I put the tool on there and compressed the pressure plate fingers but the springs didn't retract on there own. I used a flathead to push back the plate inside and compress the springs. While holding the plate I released the tool from the pp fingers.





I'll find out tomorrow if it's all good.
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Old July 16th, 2014, 06:36 AM   #29
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Finished it up last night and test drove. All grip no slip. Hard lesson learned to not over grease the clutch disc splines and mainshaft.
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Old July 17th, 2014, 07:14 AM   #30
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That's great news. Thanks for posting what the issue was.
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