Info on breaking in a clutch

ONLY for ADVANCED technical discussion about the 240sx!
crazeddriver
Posts: 33
Joined: Mon Mar 31, 2003 5:04 pm
Car: upgrading my car

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Can somebody tell me what i should do to break in a clutch


Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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Basically don't rag on the car for about 500 miles

Try not to slip the disk or give it a harsh engagement (IE speed shifting, racing, drag launch, etc.)

Drive around like you got a dozen eggs loose in the trunk

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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Is the clutch an OEM replacement or is it some sort of racing disk?

crazeddriver
Posts: 33
Joined: Mon Mar 31, 2003 5:04 pm
Car: upgrading my car

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it is an exedy clutch...ya figure like just shifting around like 2500 and 3000 rpms?

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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If your turbo or supercharged then keep it out of boost.

Basically just don't rag the clutch. Don't go out ripping through the gears or running it up high in the RPMs. Drive like a normal person.

S13240
Posts: 1908
Joined: Fri Jul 26, 2002 8:06 am

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In other words, drive it like you're an old old man. Take it easy! Granny drive it for the first few hundred miles and your clutch will love you afterwards. Not sure about Exedy clutches, but ACT only recommends 2-300 miles for breakage time on their clutches.

encasemyheart
Posts: 634
Joined: Wed Sep 25, 2002 1:29 pm

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I have a question. I just ordered a Spec stage 3 clutch. That's the pucked clutch with a sprung hub.

Is break in different or even applicable? I know with regular clutches the aforementioned advice is correct, but with a pucked clutch I have heard all it needs are a few high rpm drops or something, is this true?

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C-Kwik
Moderator
Posts: 8070
Joined: Thu Aug 01, 2002 9:28 pm
Car: 2013 Chevy Volt, 1991 Honda CRX DX

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what kind of pucks? copper ceramic do not need break-in. Organic and kevlar do. Not sure about carbon set-ups.

encasemyheart
Posts: 634
Joined: Wed Sep 25, 2002 1:29 pm

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SPEC increases the clamping force of the pressure plate and uses a Carbon or ceramic friction surface on the disc hold more power, yet maintain close to the same street manners as a full faced organic disc.

I dunno, that's what Enjuku's site says Carbon or ceramic. I guess I'll just call.

encasemyheart
Posts: 634
Joined: Wed Sep 25, 2002 1:29 pm

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OKay just for future reference of other people, Robert from Enjuku says it does need breaking in. 300 miles stop and go driving, highway driving doesn't count towards the 300.

So it breaks in like any other clutch.

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p00t
Posts: 780
Joined: Thu Feb 13, 2003 2:42 pm

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if you have enough restraint to keep off the gas for 300 miles you are a damn self-control master!

after 100 miles with my new clutch i gave in and floored it! chirped 1st, 2nd, and 3rd with 3 extra people in the car :icesangel

encasemyheart
Posts: 634
Joined: Wed Sep 25, 2002 1:29 pm

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p00t wrote:if you have enough restraint to keep off the gas for 300 miles you are a damn self-control master!

after 100 miles with my new clutch i gave in and floored it! chirped 1st, 2nd, and 3rd with 3 extra people in the car :icesangel


:)

That's why I'm doing it now, I have my turbo/manifold/intercooler and some other stuff and am about to go KA-T. I KNOW for a fact that when I get the turbo online I will not be able to keep my foot off of the gas. So I'm doing the clutch now while I'm N/A and my N/A JWT ECU is away for re-tuning to turbo specs.


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