mrlaz1ex1

Hey guys, I recently got a clutch job and tranny work done to my car and now my clutch pedal does not have as much pressure as it did before the tranny work.

Basically I had my mechanic put in a new clutch + flywheel and replaced the ISB in the transmission. After the install, the clutch pedal lost a lot of pressure and was very soft. I was told the cause of the soft clutch pedal was because of my leaking clutch master cylinder, but I had that replaced a week later and now it's still the same.

What is it that caused my clutch pedal to lose pressure? It's frustrating because my clutch was stiffer before I spent all this money on the clutch and tranny.

Input please guys.

94EG8

Are you having any clutch engagement/disengagement issues? Softer pedal doesn't necessarily mean there's anything wrong with the clutch.

mrlaz1ex1

No clutch disengagement\engagement issues. Just wondering why the clutch was stiffer before I had the old clutch and flywheel replaced.

Nobody123

Possible causes for a soft clutch pedal:

air in the line - bleed

leak in the hydraulic system - could be a line or a seal

defective clutch pedal assembly - could be a spring, a pin, a rod, the bracket, etc.

softer pressure plate - not necessarily a defect, but replace with a stiffer pressure plate

mrlaz1ex1

thanks for the input. after some more searching I found out that I might have well changed the clutch slave cylinder at the same time I had the master cylinder changed. I'll try that first and see if it fixes the problem.

94EG8

I'm still not convinced that there is a problem. I'd say based on the fact that there doesn't seem to be any engagement/disengagement issues that you simply got a softer pressure plate than what was in there last.

mrlaz1ex1

the clutch kit comes with a new pressure plate? I bought an exedy oem clutch kit btw.

sorry for my newbyness.

civicjunkie17

iTrader: (1)

I'm agreeing with 94EG8, do you remember what clutch you had in there originally?

94EG8

If it's a kit then yes, normally you get a new disc, pressure plate, pilot bearing and release/throwout bearing.

An OEM Exedy replacement clutch will have a relatively soft feel to it.

mrlaz1ex1

The clutch that was originally there was the factory clutch. Pretty worn out.




Thanks for all the helpful responses. I was just perplexed at why the original factory clutch kit was stiffer than my new OEM exedy clutch kit.

94EG8

It may not have originally had an Exedy/Daikin clutch, they supplied honda with most, but not all of their clutches. I've personally pulled a couple now from Japanese production Civics that were a different brand, me another member years ago were pretty sure they were supplied by FCC.

Btw, were you driving another manual transmission vehicle while yours was down? I drove a 4wd Tacoma a few years ago for a week or two when I blew the engine in my civic and when I first went to drive it I thought I had a hydraulic leak when I went to start the car, all it was, was me being used to a much heavier clutch.

mrlaz1ex1

Ah I see... No I did not drive another vehicle while my civic was in the shop. Well anyways I feel more content now with the whole clutch pressure issue.
Thank for all the help sir!