DMF; serviceable? - ZR-1 Net Registry Forums

Schrade · 08-14-2014

I have left from my automatic conversion my DMF.

Is it a serviceable unit? I'm about 99% sure it had broken springs, from lugging too low RPM's when I bought it - supposedly a common problem...

Is it trash, or list-able, on eBay?

It had about 31.6k on it when the conversion was done.....................................

LGAFF · 08-15-2014

My understanding is that they are not

Schrade · 08-15-2014

So is the thing a doorstop / trash?

LGAFF · 08-15-2014

If its bad, then probably yes.....make sure its really bad though

mike100 · 08-15-2014

Mine knocks in one direction slightly. It only acts up when there is a misfire and sometimes when the engine turns off, it knocks once. I was able to find a much better used one which I'm saving for later. The spring that damps the accelerating direction is still good so I'm gonna run it for the duration of this clutch.

Schrade · 08-15-2014

I think I read that the springs are supposed to absorb vibration at low rpm's.

I had to set torque convertor lockup over 45 for that vibration. Any lower, and the whole car would shake, even at speed.

08-14-2014	#1
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	DMF; serviceable? I have left from my automatic conversion my DMF. Is it a serviceable unit? I'm about 99% sure it had broken springs, from lugging too low RPM's when I bought it - supposedly a common problem... Is it trash, or list-able, on eBay? It had about 31.6k on it when the conversion was done..................................... __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]

08-15-2014	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,193	Re: DMF; serviceable? My understanding is that they are not __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

08-15-2014	#3
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Re: DMF; serviceable? So is the thing a doorstop / trash? __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]

08-15-2014	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,193	Re: DMF; serviceable? If its bad, then probably yes.....make sure its really bad though __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

08-15-2014	#5
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: DMF; serviceable? Mine knocks in one direction slightly. It only acts up when there is a misfire and sometimes when the engine turns off, it knocks once. I was able to find a much better used one which I'm saving for later. The spring that damps the accelerating direction is still good so I'm gonna run it for the duration of this clutch.

08-15-2014	#6
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Re: DMF; serviceable? I think I read that the springs are supposed to absorb vibration at low rpm's. I had to set torque convertor lockup over 45 for that vibration. Any lower, and the whole car would shake, even at speed. __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]