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

In the meantime, just keep removing the parts and cleaning, cleaning, cleaning......





All four cam shafts removed and rocker arms exposed.

Still not cleaned the cam shafts yet so not inspected in detail but the coating looked evenly worn with no deep scratch markings. Very good and once again, it's the proof that it's better to drive the car regularly with long distance journey than parking the car for weeks, months or even years.

Will take the photo later as I would like to take additional photos for the NSX Prime as well.
One owner managed to bent several valves by loosing the dowel pin pressed inside the cam pulley after installing it at the cam shaft. I don't think it's possible to loose it if installed properly due to the shape of sloped cutout on the cam shaft where the pin sits but wanted to take some measurements and photos.

As always, lots of black contaminated oil trapped at the pockets.





As seen on many NSX and very likely to be the same on your NSX.
The seeped oil from the rear valve cover managed to run behind the cover plate.
Still, the TB is well protected even under this condition and in my view, NSX TB is one of the most well protected design among the Honda cars.





WP looked very clean but already making rattling noise. Didn't bother taking another video was it was exactly the same as the last one I took.
Another reason why you should replace WP at the time of every TB service regardless of your annual mileage.
You can't inspect the impeller without removing the WP.




As reported earlier, the area behind the crank pulley was super dirty.
Used scraper, etc and finally the black debris, melted potting, etc came off and metal surface started to show up.

There was no trace of leakage from the crank oil seal but considering the mileage, I think I'll replace it.
The thrust movement of the crank shaft felt as if within the window but slightly larger than other C32B engine.








Wow, the potting at the CRK/CYL sensor was already melted and missing from part of the sensor housing. We can see the back side of the case.
I'll definitely replace it to be on the safe side as I know it's very rare but several failures were reported after the potting was completely gone and exposed the sensor unit.
Probably it will cause excessive vibration or resonance shaking the sensor heads.