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Old 08-30-2017, 01:56 PM   #7
humfrz
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Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
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Quote:
Originally Posted by _KK View Post
I did submerge the bleeder hose in a bottle of fluid. I felt pretty good about the bleeding operation. It went well and I am pretty sure that I didn't introduce air.

I think I may have figured out what the issue was and I think it is going to make me sound crazy.

There is a retainer clip and some kind of interface piece of metal in the end of the clutch master cylinder. This piece of metal is what the push-rod, from the clutch pedal assembly, pushes up against on the end of the piston. The clip is what holds all of the internal parts in the cylinder. I think something may be out of spec or missing some damper washer or lube, because I think the sound I was hearing was them rattling around. (Ya, I probable need to find something better to do then listen to my car.) I was able to temporarily fix it by cramming some grease in the end of the master cylinder, around the push-rod end.

My theory is that there was air in the system before I did the bleed and the air bubble would expand after each clutch press and take up the slack in the push-rod/piston interface.

When I put the grease in it went away but it has come back a bit after a few days. I think I need to work out something better then grease to dampen the vibration, or stop abscessing over the sounds my car makes.

Thanks everyone for the thoughts and ideas!
You may consider investing in a new clutch master cylinder ........ unless you want to be prepared to do a lot of double clutching, rev matching and general Jake shifting all the way home some time .......


humfrz
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