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

Probably, this is one of the dirtiest TH body that I dealt with in the recent years yet the idle rpm was fairly steady.

The idle adjust screw and the port were covered in thick sticky carbon so not much point in cleaning them without removing the screw.
I’ll just replace it with a new screw.







In order to show how dirty it is, I washed part of the area.







As reported earlier, VVIS butterfly screws are still there and as far as I can see or hear,
none of the them were loose or making rattling noise so should be fine for some time.

Quite surprised to see lots of oil at the VVIS chamber plate so at some point, please remove the intake manifold and clean it.
At the same time, please consider sending the INJ to ASNU certified place for INJ cleaning.









The port for the EACV and fast idle valve were also looked to be covered in blowby so probably the small meshed filter is very dirty.
Ideally, replace it when dealing with the intake manifold.










This AT gbox was serviced and rebuilt in the past.
Unfortunately, at some point, the connectors were damaged and no longer have the bracket holder section.
I don’t like the connectors moving with the wires touching against the gbox surface so decided to tyrap them to the bracket.










As seen on many NSX, heavy corrosion at the eng bay coolant pipes…..
I don’t want pushing my finger through it so I’ll probably remove just a bit….

The thermostat housing was also corroded.
Must clean it well to get good sealing.