Thursday, October 6, 2011

Will having a larger boresize in my master clutch cylinder make it harder to push down on the clutch pedal?

As a follow up on my previous question. On changing the master clutch assembly of my mistubishi pajero (manual trans)



Will having a large boresize make it harder to press on the clutch pedal? And vice-versa to a smaller boresize?



After replacing the master clutch assembly, it seemed to make my clutch so much harder. I am not certain if this is just because the assembly is new or if the bore size made a difference.
Will having a larger boresize in my master clutch cylinder make it harder to push down on the clutch pedal?
Larger bore will make it HARDER to push down. Newness has no effect. The pressure plate may feel different, especially if it was called heavy duty and had heavier springs.
Will having a larger boresize in my master clutch cylinder make it harder to push down on the clutch pedal?
No difference in bore size, but how is the clutch fluid in it?...

that could be the cause, if you put too much or too little in the new clutch, than you'll have resistance, also, did you get the air out of the new one?
Larger bore size pushes a greater volume of fluid through the same size lines - result will be a shorter stroke but will require greater force to move the slave piston . A smaller bore requires less force but longer stroke to move the slave. Newness may make it only slightly stiffer than before.
If you also replaced the pressure plate, this will contribute, the larger bore should actually make it easier... did you change the spring on the clutch pedal assy as well?
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