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

After looking at the state of the TH body, decided to clean the IAT sensor.
Good idea….
Cleaned and re-installed with the new o-ring.










The AT spec crank pulley.
Normally, AT one has better endurance against the counter weight separation resulting in possible engine damage with bent valves.

However, with this AT NSX, the separation was just about starting.
Probably never replaced at the time of every TB service.









By the way, when I removed the crank pulley, I found this….

Normally, I would be happy cleaning the area for the owner but there seemed to be lots of oil dripping from somewhere above and
unless I can confirm whether it's still seeping the oil or these were the left over from the previous services,
there is no point in spending my time and the budget as it will end up in the same condition later.


Hope the owner will consider my Eng Refresh in the future so that I can take the Eng off the car and just wash it thoroughly.








As mentioned, it is recommended to take compression data once a year.

Already sent the data to the owner and very strong data although quite normal for our NSX engine.

I covered more than 152K miles over the last 22 years and still almost the same as this low total mile engine data.
The same procedure, starter spec, equipment, altitude and similar eng temperature and possibly the eng oil viscosity so good comparison.






Re-installed all six IG coils with silicone grease around the coil head and at the tube.
Thin coat applied at the entrance of the tube where it meets the spark plug insulator body.









As seen on many NSX, the A/C idle pulley adjuster was bent by over tightening the tensioner.
Although I have new ones in stock, with this level of damage, I can straighten it without leaving marking by using the Knipex pliers.