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Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

Eng Refresh Stage 2 - 13

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3 Comments
by
Kaz-kzukNA1
, 25-01-2012 at 10:32 PM (2257 Views)




Time to replace the WP.
The existing WP already started to show the rust on the impeller.
I always replace WP whenever working on the TB so it was replaced 60K miles ago.
This time, it took me 9yrs to cover this mileage and the coolant was replaced again after the last TB service when I replaced all of the coolant hoses.

May need to think about the coolant maintenance interval.








As always, remove the old sealant from the thread of WP area and re-condition the mating surface.









New WP.
Of course, there is no rust.









New WP installed.










For R&D purpose, we’ve done several things on the Oil pump and as there was no sign of wear, the oil seal will be reused.

Updated 01-06-2012 at 10:35 PM by Kaz-kzukNA1

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Engine Refresh Stage 2

Comments

  1. Senninha's Avatar
    Hi, Kaz.

    Colour coded bolts? Is this something you do on dis-assembly, or maybe re-assembly so you know you've completed the torque process?

    Hours of cleaning but its looking good ...

    regards, Paul
  2. avcrx's Avatar
    Hi Kaz,

    This is exactly something I always wanted to ask...

    regards

    Alan
  3. Kaz-kzukNA1's Avatar
    Hi, Paul and Alan.

    As you have guessed right, the markings are for the torque check purpose.

    At the Honda factory, for the critical components, they use special socket which has marking dye inside so that when the torque wrench was used together with this socket, the specific colour marker will be applied automatically to the bolt head and nut.
    This will help on the inspection process.

    As a human being, no matter how many times you have carried out the same procedure, you can make mistake. Therefore, I don’t trust my memory of which bolt/nut being torqued to the spec.
    Hence, it will take more time but I just mark them so that I can visually check them during the inspection process.

    Kaz