Testing the Master Cylinder
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Staging Lane
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Join Date: Jul 2007
Location: Chicago, IL
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I have been having hydraulic clutch problems (see my other thread) and to sum it up I pulled the master cylinder out of the car and tried to test it to see if it was still functioning.
There is not a lot of info out there on testing either the slave or master other than just bleeding or replace.
Again out of car I cannot push the bar/plunger (clutch pedal side) down into the master cylinder as its rock hard. Which from the little bit of info I could find means it checks out ok.
I also used a mityvac in the reservoir and it holds the pressure/vacuum like a champ and still not able to pump the master.
While pushing in the quick connect on the braided line I can pump the plunger/rod and fluid comes out like it should
Now it would seem to me this means the Master if fine...Does anyone else have knowledge/experience that says otherwise?
So unfortunately it looks like my slave will need to be replaced and figuring out how I will get to that
There is not a lot of info out there on testing either the slave or master other than just bleeding or replace.
Again out of car I cannot push the bar/plunger (clutch pedal side) down into the master cylinder as its rock hard. Which from the little bit of info I could find means it checks out ok.
I also used a mityvac in the reservoir and it holds the pressure/vacuum like a champ and still not able to pump the master.
While pushing in the quick connect on the braided line I can pump the plunger/rod and fluid comes out like it should
Now it would seem to me this means the Master if fine...Does anyone else have knowledge/experience that says otherwise?
So unfortunately it looks like my slave will need to be replaced and figuring out how I will get to that
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)