clutch question

ZippyDan

Platinum Member
Sep 28, 2001
2,141
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the distance that the clutch pedal moves from clutch fully disengaged to where it starts slipping (i.e. the part where moving the clutch pedal does nothing), is different on every car

surely there is a vocab term for this distance... what is it :)
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Clutch play, pedal play, clutch adjustment...etc.
 

Toastedlightly

Diamond Member
Aug 7, 2004
7,215
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I've called the point where it starts grabbing the friction point. I don't know, I've just referred to it as the usable length of the stroke or something.
 

RGUN

Golden Member
Dec 11, 2005
1,007
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Ive always heard it referred to as the clutch take up length
 

Cattlegod

Diamond Member
May 22, 2001
8,687
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what do you need to use the definition for? Is 'clutch engagement length' good enough?
 

Colt45

Lifer
Apr 18, 2001
19,720
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He needs a technical sounding reason to explain to the girls why he keeps stalling his new car.
 

psixninja

Junior Member
May 28, 2007
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Originally posted by: Colt45
He needs a technical sounding reason to explain to the girls why he keeps stalling his new car.

Hahaha, I really did laugh out loud when I read that.

:thumbsup:
 

ZippyDan

Platinum Member
Sep 28, 2001
2,141
1
81
well friction point is just that... a point, where the clutch starts to slip. im looking for the name of a range (of which that point consists of one end of the range)

that said, i did not describe it accurately in the original post. 1. pedal fully pressed, clutch disengaged -> 2. pedal partly pressed, clutch still fully disengaged -> 3. friction point -> 3. clutch slipping (partially engaged) -> 4. clutch fully engaged, pedal fully depressed

if you are teaching someone to use the car, you have vocab u can use to describe points and ranges: disengaged, friction point (point), slipping (range), engaged (point)

the problem is that "disengaged" is usually thought of as a point (push the pedal all the way in) since the clutch itself is in a static state as opposed to the pedal which can be moving through a "disengagement range." i was just wondering if there was a term for that range on the clutch pedal though, since all the other terms really refer to the clutch itself and not the clutch pedal (i.e. the range between 1. and 3.)

so far we have:

clutch engagement length (clutch disengagement length?) - which sounds way too long

clutch play
clutch free play
clutch pedal play - i believe these three might be right from some limited googling

clutch take up length - possibly

clutch adjustment - sounds like something you do to set the range, not to describe it...
 

Zenmervolt

Elite member
Oct 22, 2000
24,514
44
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Originally posted by: CallMeJoe
clutch pedal free play
No. "Free Play" is typically only 1-2millimeters and refers to the tiny amount of play between the clutch pedal and either the master cylinder or the point at which the clutch cable become taut. "Free Play" is at the top of the pedal travel and occurs well past the point at which the clutch is fully engaged. Note that the brake pedal also has "Free Play".

There is no widely-used term for the range between full disengagement and the first point where the clutch begins to "bite" (the "Friction Point"), but "Take-Up Length" would be the most correct.

Using "Free Play" to describe what you are asking about is absolutely wrong, though many non-mechanics make the mistake of doing just that.

ZV
 

ZippyDan

Platinum Member
Sep 28, 2001
2,141
1
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Originally posted by: Zenmervolt
Originally posted by: CallMeJoe
clutch pedal free play
No. "Free Play" is typically only 1-2millimeters and refers to the tiny amount of play between the clutch pedal and either the master cylinder or the point at which the clutch cable become taut. "Free Play" is at the top of the pedal travel and occurs well past the point at which the clutch is fully engaged. Note that the brake pedal also has "Free Play".

There is no widely-used term for the range between full disengagement and the first point where the clutch begins to "bite" (the "Friction Point"), but "Take-Up Length" would be the most correct.

Using "Free Play" to describe what you are asking about is absolutely wrong, though many non-mechanics make the mistake of doing just that.

ZV

yay a seemingly convincing answer! thanks