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Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background

Health Check, Annual Service 04

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In the process of replacing the CL Hyd system.
Just black fluid in the reservoir.
It's the debris from the aluminium cyl wall and deteriorated rubber cup....

Looks like someone just kept topping up the fluid when the level dropped.
Fluid doesn’t just disappear so should have checked where it has leaked.








Cleaned the reservoir to this level and new master cyl installed.







New Slave cyl and new hose with the new fixing bolts.






Very important to apply Urea grease at the fork saddle.






New slave cyl with dust boot installed.







Unlike the brake master cyl, the CL one is single piston design and
since the reservoir is at much higher position, no need to bench bleed first.

After priming the master cyl briefly by squashing and shaking the
reservoir tube many times, just pressure bleed it to push out
any dirty old fluid in the hyd line.

Kept the system under pressure for leak check around the hard line fitting,
reservoir tube, etc.


Once done, just used the manual bleed mode using the hand for
5 pedal strokes and checked the pedal feeling, play and the height.




Shift cable back in place and done.













Testing the drainage at the boot section.

Originally, I was told that it was the right side that was blocked.

From what I can see, the drainage at the outward section was fine
at both side but the one towards the middle was blocked at the
left side and partially blocked at the right side.

Will remove the tail light assy and clean the area.





Unfortunately, the oil cooler that started to leak oil is on back order and
it won’t be available until the end of September in Japan.
Honda UK is also on back order but they replied back that it will be
available at around 06/Sep so not too bad apart from the price.

Just waiting for the US side to check the availability and
the delivery schedule.


Looks like this NSX is going to stay at my place for a while and
I need to free up the lift for the next Engine Refresh
starting from next week......

Challenge continues..........


Kaz




Comments

  1. ozon02's Avatar
    Hi,
    could you tell me how far(in mm-metric) moves piston in slave cylinder during engagement clutch.
    Regards
    Mario
  2. Kaz-kzukNA1's Avatar
    Hi, Mario.
    I saw your post in Technical Forum but I'm afraid there was not enough information and I could see it tuning into long Q&A session before even getting to the point of your question/issue so decided not to respond until enough information shows up.

    You really need to tell some background story of your issue (suddenly happened, happened after doing something, etc) and at least the followings;
    OEM CL or aftermareket. If aftermarket, push/pull type.
    Single disc or twin type.
    OEM Hyd sys (pedal/master/slave/hose/damper) or aftermarket. You must tell whether you are using Type-R CL pedal (RHD only) and/or damper-less joint or not.
    Pedal adjustment

    You better place the above info in the thread you started in Technical forum as I'm quite sure, there will be more information required.


    Kaz