PULL type clutch? Someone Please Explain - evolutionm.net

Go Back   >
Log In 


Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.
Sponsored by
Injen Technology

Click Here

PULL type clutch? Someone Please Explain

Reply
 
 
 
Thread Tools Search this Thread
Old Jan 20, 2010, 12:23 PM   #1
Evolving Member
Thread Starter
iTrader: (1)
 
heel_touge's Avatar
 
Join Date: Jun 2009
Location: on the interwebs all fricken day.
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
PULL type clutch? Someone Please Explain

I have done multiple searches and can't find ANYTHING that can help a visual guy like me.

So i understand how a normal clutch works, But what i cant seem to wrap my head around is our "pull" type clutch works.

So, when i press the pedal in, it pulls the clutch disk away from the flywheel?

at what point is there NO load on the TOB? when the clutch pedal is IN? or while the clutch is disengaged (in neutral at a stop light) and there is no foot on the clutch pedal?

any visual aids would help, Im a noob to these vehicles, so thanks for the input.

Mark
Offline
 
Reply With Quote
Old Jan 21, 2010, 06:58 PM   #2
Evolved Member
iTrader: (1)
 
JohnDoe1984's Avatar
 
Join Date: Dec 2008
Location: Alaska
Posts: 572
Thanks: 0
Thanked 0 Times in 0 Posts

Drives: '06 Evo IX

You're in luck. I was trying to explain how a pull clutch works to a dude online and for the life of me he didn't get it so I dug up this picture. It makes it pretty clear.

Offline
 
Reply With Quote
Old Jan 22, 2010, 07:38 PM   #3
Former Sponsor
iTrader: (5)
 
ACTman's Avatar
 
Join Date: Jun 2003
Location: lancaster, ca
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
The illustration is great, but unfortunately the logic in the text is flawed. When it comes to a simple change in leverage, you cannot get something for nothing. Whenever you lighten up the pedal effort by a change in geometry, you reduce the lift of the pressure plate from the disc and suffer from inadequate disengagement or less torque capacity in order to make up for the lighter pedal effort.

The real advantage to the pull type system is that the pressure plate is a lot more efficient. Because the pressure plate is loaded in one direction only (toward the transmission) and the diaphragm is supported closer to the clutch bolt flange, there is significantly less deflection (flex) which is basically wasted travel. Any time you reduce travel to accomplish the same clamp load and lift, you can take advantage of the better efficiency by reducing pedal effort or pedal stroke.
Offline
 
Reply With Quote
Old Jan 22, 2010, 07:52 PM   #4
Evolved Member
iTrader: (62)
 
EvoLutionized8's Avatar
 
Join Date: Jul 2005
Location: Nashville, TN
Posts: 677
Thanks: 0
Thanked 0 Times in 0 Posts

Drives: mama crazy...

^+11ty billion... best explanation I've seen in a while. figures coming from Clutch-man.. hahaha..
Offline
 
Reply With Quote
Old Jan 22, 2010, 08:32 PM   #5
Evolved Member
 
barneyb's Avatar
 
Join Date: Jun 2006
Location: Grand Island, NE
Posts: 5,147
Thanked 20 Times in 20 Posts

Drives: '03 Evo 8, '04 WRX

Nevermind where the dashed lines are, the two lever arms in the illustration are about the same.
Offline
 
Reply With Quote
Old Jan 23, 2010, 08:43 AM   #6
Evolving Member
Thread Starter
iTrader: (1)
 
heel_touge's Avatar
 
Join Date: Jun 2009
Location: on the interwebs all fricken day.
Posts: 119
Thanks: 0
Thanked 0 Times in 0 Posts
thank you!
this is very helpful and is EXACTLY what i've been trying to hunt down.
Offline
 
Reply With Quote
Old Dec 26, 2010, 10:45 PM   #7
Newbie
 
rob_96's Avatar
 
Join Date: May 2009
Location: richmond hill
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
sticky
Offline
 
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
CLUTCH problem... need help! shes collecting dust in my garage kingjhay723 04-06 Ralliart General 8 Jan 31, 2015 09:54 AM
Compeition Clutch Twin Clutch pedal Uscbryan Evo X Engine / Turbo / Drivetrain 2 Jun 7, 2014 08:46 PM
New Clutch, Flywheel, TOB, TC Noise... Dann Evo Engine / Turbo / Drivetrain 3 Dec 24, 2013 06:19 PM
Pull Type Clutch Problem most wanted Evo General 9 Apr 15, 2010 08:02 AM
Help! Clutch pedal is stuck, will not push in LakerRaider Evo Engine / Turbo / Drivetrain 10 Jun 21, 2009 10:59 AM


Tags
adjustment, advantages, clutch, diagram, disc, double, evo, install, mack, pull, truck, type, work, works, wrx

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -7. The time now is 03:19 PM.