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Old 12-14-2006, 09:21 AM   #1
JonM in MN
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Member#: 133956
Join Date: Dec 2006
Chapter/Region: MWSOC
Location: Twin Cities MN
Vehicle:
2004 WRX Sedan
WR Blue

Default Why is my clutch so heavy?

I noticed this when I drove an 06 TR awhile back --- the clutch seemed light as a feather. Getting back to my car, it took real effort to depress.

Is this common in 04 WRXs? I heard from someone with an 02 this might be an issue, but did a search and didn't see anything. Is it fixable?
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Old 12-14-2006, 09:27 AM   #2
jasonallenross
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2002 WRX Wagon
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Start running (for endurance) and weights (for strength).

You clutch will feel much lighter over time
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Old 12-14-2006, 09:36 AM   #3
pezman04wrx
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The clutches are hydraulic, so I don't belive there is anything that could be done to fix the heavy/light feel ... Maybe the newer cars have modified the hydraulics slighty to get a lighter feel, really not sure if that's been done though ...
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Old 12-14-2006, 09:39 AM   #4
gte123v
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WRB

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I believe they switched from a push type to a pull type in the 06.
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Old 12-14-2006, 10:57 AM   #5
STirocket
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Join Date: Mar 2005
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2005 Impreza WRX STi
WRB with Goldies

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Clutch pedal feel is generally a result of clutch pressure plate spring pressure. A high performance engine requires a pressure plate with stiffer springs so the clutch won't slip. Also the length of the lever (pedal) will affect the mechanical advantage you have when depressing the clutch. So if you have one car with a longer clutch pedal it may feel lighter than another car with a short pedal even though the pressure plate springs are the same.

Whether the clutch is actuated by a cable or a hydraulic cylinder shouldn't have any affect on how much pedal pressure you feel.
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Old 12-14-2006, 11:01 AM   #6
Calamity Jesus
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Another thing to consider is that the effort required to release a clutch changes as the clutch wears due to the non-linear nature of the pressure-plate spring. New clutches are almost always easier to press than worn clutches.
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Old 12-14-2006, 11:10 AM   #7
Swordfish II
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Quote:
Originally Posted by gte123v View Post
I believe they switched from a push type to a pull type in the 06.
+9854678
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