Guest boosted Posted May 16, 2005 Share Posted May 16, 2005 Had the car out on the road today (3rd time since swap) and have put a total 20 or so miles on it in those 3 trips. Brand new clutch , Pressure Plate , Throwout bearing , resurfaced flywheel.... This is my first manual car and did not realize the clutch should be broken in ( didnt figure there is a breakin?) and got on it a little hard( 1/2 - 3/4 throttle) )and had some serious slipping above 4k. this happened probably 6 or so times each of which I eased off immediatly.At first I had no idea what the hell was happening and it scared the crap out of me MY question is how much damage do you thing was done? I have already gotten some feedback that led me to find out It should be broken in before getting on it hard ,, but failed to ask how much damage might have been done from these few moments of slippage. SO how much damage might have been done from these few moments of slippage? Thanks. Quote Link to comment Share on other sites More sharing options...
rayaapp2 Posted May 16, 2005 Share Posted May 16, 2005 You probably polished the friction disk. Quote Link to comment Share on other sites More sharing options...
Guest boosted Posted May 16, 2005 Share Posted May 16, 2005 in that small amount of time? I should remove the trans and have a look? Is it likley that the components wont break in properly from slipping even just that much. Or does it take some serious slipping and heat for this to happen? Quote Link to comment Share on other sites More sharing options...
Guest boosted Posted May 17, 2005 Share Posted May 17, 2005 Well Ive thought long and hard about this and if I have to pull the trans because of this dumb *** goof then i think im going to swap out the diffy as well. out with the 3.9 in favor of the 3.5. though I might put off the diffy swap till I can get a hold of an lsd . CRAp My hEaD iS alL ScrAmBLed NoW. Quote Link to comment Share on other sites More sharing options...
Here comes trouble Posted May 17, 2005 Share Posted May 17, 2005 Give it some rest and drive it carefully for awhile to see what developes. Had an old Datsun 620 pick-up with 250,000 mile on the original clutch which slipped one time in wet weather going thru a big mud puddle. The clutch never failed but the engine did. Left it in Klamath Falls because it didn't have the power to get over the Cascade Mtns. back to Eugene. Went five years without a radiator cap because exhaust pressure would blow the radiator if capped.. Never figured that problem out! Quote Link to comment Share on other sites More sharing options...
Guest boosted Posted May 17, 2005 Share Posted May 17, 2005 Well thing is ... clutch, PP , are new (20 miles) flywheel is resurfaced. This slippage happened only like 6 time . all of which I let off immediatly. The ONLY reason it happened more than once is I had no idea what the hell was happening. so I ran it up again to try and figure it out . How much damage could have been done from just that short time and is it likely that if properly broken in now for the next 300 miles it'll be good. Or will it be less strong even after break in because of this. If any damage occured it will probably compound ,even if driven like an old lady for a few hundred miles. If there is a chance some damage has occured I WILL remove the trans and get it right. Im getting used to these type of things happening to me. probably why this build has taken a year to complete (well almost complete) I'll be the first to admit that I dont know much about cluches ,I used great care when assembeling it all . so I guess I will stop by the specialist I bought the parts from and ask his opinion too. Would hate to hear I pissed 325 bux (clutch,PP,flywheel resurface , throwout bearing ,pilot bearing) away cause of a dumbass (just didnt know about clutch breakin) mistake. He may have mentioned breakin but this was 6-8 months ago and alot has happened since then. oh well, thanks to all Kevin Quote Link to comment Share on other sites More sharing options...
sims76 Posted May 17, 2005 Share Posted May 17, 2005 Boosted, This is just for the record as I have just installed an ACT Clutch myself.... http://www.advancedclutch.com/images/ACT_Install_Instruct.pdf "7. Adjust the clutch release system by following the manufacturer’s procedures and specifications. Recommended break in for ACT Street Discs is 200-300 miles of mild street driving. Break in period for the ACT Race Disc can be accelerated by performing several hard slips in high gear prior to racing. Allow the clutch to cool for about 10 minutes between these slips to prevent overheating. The purpose is to lap the surfaces together under controlled load so the full surface makes contact." Quote Link to comment Share on other sites More sharing options...
Guest boosted Posted May 18, 2005 Share Posted May 18, 2005 sims76 . thanks for the info .. good read as well. Seems like I should be ok as I really dont thing i heated the disc to much when it slipped on me. I had read elswhere about the intentional slipping to accelerate break in. welll anyhow , thanks again to all good day Kevin Quote Link to comment Share on other sites More sharing options...
zbuild Posted May 27, 2005 Share Posted May 27, 2005 I got a custom clutch made for my engine, it uses a Ferrari pressure plate housing to exert 2700lb of pressure on the disc, but at the same time as I had this built I got a lot of meat machined off my flywheel. There was a lip on my flywheel and when the face was machined, this was reduced, reducing the clamping force on the plate. . . .I had to get the flywheel machined again to replace the lip depth. If the face was machined too much, could this reduce the depth of the lip to the extent that it would reduce the clamping force, so that when you get up around 4000rpm and start making some real hp you get clutch slip???? just a thought?? cheers - simon Quote Link to comment Share on other sites More sharing options...
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