Clutch chatter
03-16-03, 09:27 PM
#1
Clutch chatter
Checked the search, no definative answers just alot of people with the same problem ... :P
I just dropped a new ACT copper 4 puck with a HD pressure plate in with new pilot and release bearings about 2000 miles ago. It's been chattering since the start and it chattered with the old clutch as well... not as bad with these tho. I don't see any problems with the current hydraulic system but the fluid is really black. I ordered an all clutch master cylinder and slave cylinder as well as a clutch hose (it was only 80 bucks from vic british).
So, anyone have any exp with this stuff and possible resolutions?
(it'll all be a moot point when i switch to a turbo 2 driveline in 20-30k)
I just dropped a new ACT copper 4 puck with a HD pressure plate in with new pilot and release bearings about 2000 miles ago. It's been chattering since the start and it chattered with the old clutch as well... not as bad with these tho. I don't see any problems with the current hydraulic system but the fluid is really black. I ordered an all clutch master cylinder and slave cylinder as well as a clutch hose (it was only 80 bucks from vic british).
So, anyone have any exp with this stuff and possible resolutions?
(it'll all be a moot point when i switch to a turbo 2 driveline in 20-30k)
03-20-03, 10:28 AM
#7
These assemblies have vertually no, I believe marcel, material between the disc layers, along with no vibration absorbing springs in the hub. It will definitely give a harsh engagement. My feelings are that people tend to install assemblies that are really for track use, then complain about the engagement. You can't have both.....See below-
ACT 4& 6 PAD RACE DISC
ACT Copper Ceramic Race Discs are available in 4 or 6 pad designs. These pads (pucks, buttons) are highly durable and resistant to heat and actually perform better when hot. They hold approximately 28% more torque than an organic lining. Copper ceramic discs engage fairly harsh and are not normally recommended for street use. Shifting is quick and sure due to the lightweight rigid design. No worries about broken center sections or springs either. 6 pad discs are recommended on larger sizes to absorb the heat or for smoother engagement when fast shifting may not be a concern. 4 pad discs engage harder and shift faster and are well suited for smaller disc sizes from smaller engines.
ACT 4& 6 PAD RACE DISC
ACT Copper Ceramic Race Discs are available in 4 or 6 pad designs. These pads (pucks, buttons) are highly durable and resistant to heat and actually perform better when hot. They hold approximately 28% more torque than an organic lining. Copper ceramic discs engage fairly harsh and are not normally recommended for street use. Shifting is quick and sure due to the lightweight rigid design. No worries about broken center sections or springs either. 6 pad discs are recommended on larger sizes to absorb the heat or for smoother engagement when fast shifting may not be a concern. 4 pad discs engage harder and shift faster and are well suited for smaller disc sizes from smaller engines.
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03-20-03, 11:03 AM
#8
I really don't think it's supposed to be THIS rough. I was looking for a harsh engagement really. But not a chattering. But I can see what you mean a bit. I was expecting there to be a more "Toggle on/off" type engagement ... not a slipping chatter. The racing beat brace specifies that it removes common chatter from the clutch engagement... a common problem with rx7 owners (so they say). I think that would take a little bit of bite out of the problem.
03-20-03, 11:12 AM
#10
Sorry, wanted to add-Most of these "racing" type assemblies have a very fine line between engage and disengage. That's why you do get the chatter. As I stated above, the waffle material between the disc, puck lining, is not existant to absorb the engagement, or the compression from the pressure plate.
03-20-03, 12:18 PM
#12
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The chatter should lessen a bit as you break it in. Also don't assume that the flywheel guy did a perfect job. Also, are you sure you kept everything clean and dry when you put it together?
03-30-03, 08:42 AM
#14
FIXED!!
I replaced the clutch slave and master cylinder (easy job and well worth the rewards). It's removed about 90% of all chatter. Most of it now comes from the fact that it is a stage 1 clutch and i'm starting to feel the "Toggle on/Off" that ACT was referring to and I like it.
I'm ordering teh RB engine brace this weekend so it will be interesting to see how it all goes. Hopefully it will take out the other 10%.
I'm ordering teh RB engine brace this weekend so it will be interesting to see how it all goes. Hopefully it will take out the other 10%.
03-30-03, 10:13 AM
#15
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Originally posted by f1blueRx7
I really don't think it's supposed to be THIS rough. I was looking for a harsh engagement really. But not a chattering. But I can see what you mean a bit. I was expecting there to be a more "Toggle on/off" type engagement ... not a slipping chatter. The racing beat brace specifies that it removes common chatter from the clutch engagement... a common problem with rx7 owners (so they say). I think that would take a little bit of bite out of the problem.
I really don't think it's supposed to be THIS rough. I was looking for a harsh engagement really. But not a chattering. But I can see what you mean a bit. I was expecting there to be a more "Toggle on/off" type engagement ... not a slipping chatter. The racing beat brace specifies that it removes common chatter from the clutch engagement... a common problem with rx7 owners (so they say). I think that would take a little bit of bite out of the problem.
My 6 puck would get chatter sometimes until I learned how to drive it better.
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