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  1. Claudiu

    What Your Clutch Fluid looks like at 20K - Also, Issues Restoring Pressure and Fixes

    There is a 0.5 inch (12.7mm) service kit for rear brake master cylinder which has a Nissin 0.5 inch standard piston. However, the one used on Rocket 3 with the integrated reservoir and 45 degrees mounting holes with 48.8mm distance can’t be found as spare on the internet. Does anyone finds out...
  2. Claudiu

    Not Happy! 3rd brake bleed required.

    I forgot to add pictures of the original aluminium washers from the ABS. The sealing surface seems not OK and a little crooked to me. I have replaced them with compound rubber/steel ones and I installed freshly annealed copper ones on the caliper. I can't tell if my brake sucked air from a...
  3. Claudiu

    Not Happy! 3rd brake bleed required.

    That I didn’t replace yet. The routing is complicated between the radiator and the engine and I wasn’t ready to dismantle so much. Engine heat is not a problem on water cooled engines, it never goes above 120 Celsius, the thermostat opens at 103 I guess and I use racing fluid boiling above 300C...
  4. Claudiu

    Not Happy! 3rd brake bleed required.

    It is metal wrapped in plastic. Scratch proof I guess
  5. Claudiu

    Not Happy! 3rd brake bleed required.

    Ordered 1600mm excluding the two banjos (20 degrees side bent and 20 degrees diagonally). I would say 1500 mm should be better considering the braided lines should not be bent sharply. At a second thought I would install a tray in addition to the two grommets and the zip tie under the frame...
  6. Claudiu

    Not Happy! 3rd brake bleed required.

  7. Claudiu

    Not Happy! 3rd brake bleed required.

    The hard line is hanging in the air being bolted only on the top on a bracket on the vapor canister. The lower part is crimped on the braided hose about 10 cm (4in) above the swing arm. The braided line is clamped on the swing arm. The rigid line does have a Z shape which I assume is supposed to...
  8. Claudiu

    Not Happy! 3rd brake bleed required.

    There is now only one braided line from the modulator to the caliper. I would have loved to remove the original line intact to pressure test it at the joints but I had to cut it to take it off. I only removed the tank and the side panels. I still suspect the joint between swing arm’s braided...
  9. Claudiu

    Not Happy! 3rd brake bleed required.

    I replaced the rear brake line with a one piece hose made to order by HEL performance. With this opportunity I replaced all aluminium washers with new ones. Compound metal/rubber washers on ABS banjos and freshly annealed copper washers on the rear caliper. The brake hose was ordered a little...
  10. Claudiu

    Not Happy! 3rd brake bleed required.

    Soo… 72 hours ago I bled the brake using a full 0.5 liter fluid bottle and pulled out two one inch air bubbles and three inches of foam. Good for one day, faded a little the second, lost it completely before a crossroad today. It drank a quarter inch from the master cylinder reservoir. This...
  11. Claudiu

    Not Happy! 3rd brake bleed required.

    I realize written communication appears harsh, I am actually very happy to have this conversation and produce evidence and records which may help others. I used to work in automotive quality and I understand how important is to have good data at hand but here we are a group of enthusiasts...
  12. Claudiu

    Not Happy! 3rd brake bleed required.

    It seems it is not necessary. The same caliper is used on front brakes of Ducati Supersport 950, Panigale 899 and Hypermotard, etc. Also by Aprilia and CanAm Spider. Brembo part number 20B691**. Some BMW R1200GS. And among many others on Triumph Street Triple R.
  13. Claudiu

    Not Happy! 3rd brake bleed required.

    I think the matter is a little complicated. It may be a combination of design and manufacturing issues. I have no longer access to a metrology lab to check flatness, roughness, perpendicularity, etc and I don't have the manufacturing drawings anyway. What I can do for now is to replace the brake...
  14. Claudiu

    Not Happy! 3rd brake bleed required.

    Thank you for all the details. I am not familiar with DOT but I was involved with TS16949 and VDA 6. I expect process capability to be maintained that means testing a product at least every batch and have a sampling procedure in place for testing inside the batch. This is common practice for car...
  15. Claudiu

    Not Happy! 3rd brake bleed required.

    Indeed the mystery is very deep. But using racing brake fluid with 594 F boiling point didn't change anything, at that temperature all plastic components and cables around should have melted but are ok. My bike consumes some fluid and I purge the air on a regular basis. The nipple is a one-way...
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