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

Eng Refresh, Health Check, etc 27

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As reported earlier, once again, fighting with the excessive amount of black liquid gasket inside/outside of the valve covers. It was used all the way around the cover gasket and even at the IG coil holes.


I was afraid of peeling off the red coating so after removing most of the thick ones, decided to leave the ones bonded deeply into the shrunk finish coating material.




Cleaned isnide of the valve cover really well. There were lots of debris aound the TB area so the tension was bit loose in the past. Not too bad with the blowby gas and probably one of the most clean one for this mileage.

Installed the new cover/hole/sub gaskets on both valve covers.

You only need to use small amount of liquid gasket to hold the rubber in place.
Also, no need to use liquid gasket at the mating surface to the cyl head if degreased properly.




Once again, dealing with the liquid gasket so just the end result.
Valve cover installed at both banks. New IG coil cover at the rear bank as well.






Before/after

I'm quite sure the owner prefers without the eyesore excessive liquid gasket or the oil seepage.









Comments

  1. nikey22's Avatar
    Is there any benefit to removing the shield from underneath the valve covers and cleaning inside that? - They are both held on by 14 bolts. (1st picture)
  2. Kaz-kzukNA1's Avatar
    If you are comfortable dealing with the magnesium and doing DIY, then cleaning behind the breather plate won't harm.

    To me, it's too risky and not cost effective.
    You need to carefully lift the plate held by the liquid gasket without damaging the valve cover internal structure (it's magnesium so you could crack it easily), clean the area behind the plate (really sticky blowby gunk so time consuming), remove all residue of previous liquid gasket, degrease thoroughly, reapply liquid gasket and then install the plate.


    By the time doing the above, I know it would be much more cost effective to buy new one as not only you get clean valve cover inside including the area behind the breather plate, you will also get nice fresh red or black valve cover shrunk finish coating outside as well.

    Or, if you have the facility, remove the plate carefully, use proper chemical considering magnesium, soak the entire valve cover to dissolve all gunk inside, peel off all old coating to expose bare magnesium, apply new coating, bake in the oven, degrease, apply liquid gasket and then install the plate.


    Kaz