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Replace clutch springs

Started by klone, September 23, 2012, 11:40:07 AM

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klone

September 23, 2012, 11:40:07 AM
I noticed my clutch springs are getting rusty, about 7000 miles on them. I had it in for service and the clutch operates fine. Is it okay to replace the springs without replacing anything else? I was going to wait until the clutch needed work, but the clutch seems fine for now.

BK_856er

#1
September 23, 2012, 12:13:18 PM
Absolutely.  Probably just harmless surface corrosion and just a cosmetic issue.  Go with aftermarket stainless springs if you want them to stay purdy.  Be very careful not to overtorque the little bolts!

BK

klone

#2
September 24, 2012, 11:37:47 AM
Thanks for the reply, doing it mostly for peace of mind, and it gives me something to do.

ducpainter

#3
September 24, 2012, 11:38:51 AM
Stainless springs typically increase lever effort.
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 perspective
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Autostrada Pilot

#4
September 24, 2012, 01:53:28 PM
Quote from: ducpainter on September 24, 2012, 11:38:51 AM
Stainless springs typically increase lever effort.

I've heard that sometimes the springs cause slippage.  If stainless clutch spring increase lever effort, do they also decrease the likelihood of clutch slippage? 
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ducpainter

#5
September 24, 2012, 02:23:58 PM
Quote from: Autostrada Pilot on September 24, 2012, 01:53:28 PM
I've heard that sometimes the springs cause slippage.  If stainless clutch spring increase lever effort, do they also decrease the likelihood of clutch slippage? 
Probably.

My dry clutch has never slipped with stock springs.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Howie

#6
September 24, 2012, 02:25:14 PM
Yes, but that seems to be a problem on 620s.  Some folk actually remove two springs on the dry clutch without slipping.

ducpainter

#7
September 24, 2012, 02:26:41 PM
Quote from: howie on September 24, 2012, 02:25:14 PM
Yes, but that seems to be a problem on 620s.  Some folk actually remove two springs on the dry clutch without slipping.
I'm not convinced that most slippage issues on the wets aren't oil related.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Howie

#8
September 24, 2012, 02:34:15 PM
Quote from: ducpainter on September 24, 2012, 02:26:41 PM
I'm not convinced that most slippage issues on the wets aren't oil related.

Agreed.

BK_856er

#9
September 24, 2012, 04:46:35 PM
Quote from: ducpainter on September 24, 2012, 02:26:41 PM
I'm not convinced that most slippage issues on the wets aren't oil related.

Really?  I thought most were aftermarket-lever-adjustment related?   [laugh]

BK

ducpainter

#10
September 24, 2012, 04:56:03 PM
Quote from: BK_856er on September 24, 2012, 04:46:35 PM
Really?  I thought most were aftermarket-lever-adjustment related?   [laugh]

BK

That too. :P
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


koko64

#11
September 24, 2012, 07:35:04 PM
I found the TPO military grade stainless springs quite heavy, the rusty oem springs (carb 900) quite light, and those older smaller diameter wind Barnett cro moly type springs somewhere in between. I note that the later powder coated Barnett springs to be a larger diameter wind and also not as heavy as the TPO. I havent tried the Speedymoto stainless springs, what are they like?
Do Barnett still make heavier springs for high hp and drag racing applications? I think they offered various rate springs on request.
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