Hey guys,

I've got an issue with my clutch engaging/disengaging itself when the pedal is depressed to the floor. Reverse is generally the trickiest b/c I have a tendancy to ride the clutch when using reverse. It is a little hard to describe so I'll give the play by play.

1. Push clutch in, shift to reverse (or any other gear).
2. Get rolling and push cluch back in to coast while still in gear
3. Car will coast for a little bit then it will try to reengage the gear (like I had released the clutch even though it is still to the floor).
4. The problem can be fixed by shifting into neutral and releasing then pushing the pedal again.

How long it takes this to happen once the pedal is depressed to the floor is kinda random but it happens pretty consistently with reverse being the most often. It only happens when the pedal is all the way to the floor though.

This car is new to me so I don't know too much about the history but the PO said he replaced the clutch master cylinder recently.

This morning I tried adjusting the actual pedal as per the instructions in my repair manual. I wanted to move it out from the firewall somemore. It didn't make much difference visually (measuring from the pedal to the firewall) but I think I did succeed in shifting the engagement point up.

I had a friend suggest bleeding the master cyclinder, but I'm not sure what this would do. Air in the lines would only affect the feel of the pedal, correct?

I know its a little difficult to describe so if you need me to clarify anything just let me know. Any help would be appreciated!

Thanks,

Zach

 

If it only does this with the pedal depressed completely, it sounds like the clutch master is leaking past the seal. Likely due to an internal defect towards the end of the bore. This is even more likely if the "new" unit was actually a reman unit.

 

Thanks for the input. Would there be anyway to check this for sure. Would it be leaking fluid somewhere?

Zach

 

In this case, it would likely just have an internal leak, meaning the fluid is just leaking past the piston and returning to the resivoir.
The way you described it as only occuring with the pedal fully depressed, I can see no other explanation for this to happen.
An extrenal leak would be a tell-tale sign, due to the fluid. An internal leak is much harder to locate, as the fluid level never drops.

 

So looks like my only option is to replace it and hope that fixes it.