MOTOBRICK.COM
MOTOBRICK MARKETPLACE => FS WTB WTT ~ Bikes ~ Parts ~ Gear => Topic started by: BrickMW on June 24, 2017, 07:03:25 PM
-
Looking for a front master cylinder in good, non leaking, condition. Part 32722310786
Tried to "refresh" mine today and wound up with a beautifully polished cylinder that now leaks like a sieve. :swear:
I have an email out to Drake, and don't see anything but overpriced junk currently on fleabay. If anyone has one they would part with please let me know.
Thanks!
-
What did you use to clean the cylinder bore?
-
Sandpaper followed by scotchbrite on a makeshift mandrel mounted in the cordless drill..
It was badly corroded and had deep pitting.. once I removed the "crust" that had it previously sealed, (but also prevented the piston from fully returning) and saw the pitting, I knew it was probably a lost cause.
The amount of material I had to remove, coupled with reusing the old piston is just too sloppy and won't hold oil. It still builds pressure, and the leak is no worse when applying pressure, but the seal closest to the lever just dumps all the oil from the reservoir.
-
You might find someone local to sleeve it and fit a new piston. However Gryph did have a bad experience with one sleeve guy, he might post who to avoid. I have a guy locally that does them tests and guarantees them, and will ship. But it could be expensive and a long turnaround. He charges $200.00 Au for a front master cylinder rebuild with new piston and cups. Replacement cups are $10.00 Au a set.
Regards Martin.
-
You might find someone local to sleeve it and fit a new piston. However Gryph did have a bad experience with one sleeve guy, he might post who to avoid.
I had less than satisfactory results on my rear master cylinder from these guys. They mutilated the cover and even after I replaced the piston with a rebuild kit it still wouldn't build enough pressure to even bleed the system. Total waste of $110 plus the $80 for a rebuild kit.
https://www.applehydraulicsonline.com/pages/motorcycles-1
-
***UPDATE***
I managed to fix the leak by adding an o-ring to my plunger. Details are HERE (http://www.motobrick.com/index.php/topic,10020.0.html)
I am still looking to acquire a backup cylinder, as I have no guess how long this fix will stick.. and following Gryphon's / Murphy's theorem that with a spare on hand, it will never fail. At least for now the MotoBricking has commenced. :riding: