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

Eng Refresh 15

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In the process of removing the intake manifold.
Removed the TH body.
This NSX is DBW model so fairly easy.

You can see the VVIS plate at the far end and interesting to see
some markings left inside the chamber possibly from the factory.





Back of the TH body.

Very dirty with lots of black gunk around the wall.
The idle air port is also full of black oil mist.
After seeing this, I think I must wash them off.





Removed the intake manifold.

The horizontal pipe that is running inside the V-bank is the one that
I wanted to inspect urgently to decide whether I have to place the
order or not as it is on back order and will cause further delay to
other owners in the queue.




From different angle.






The expensive special green gasket.

I can't take any risks and as the manual states, the one on each bank has to
be replaced.

From the amount of oil left there, looks like there are lots of
blowby gas oil mist trapped inside the VVIS chamber.

I’ll need to clean it any way as I’ll be inspecting the screw of VVIS plate later.





The famous intake valve guide that can crack for unknown reason
mainly on C32B engine but already, there are several failure reports
on C30A engine as well.

This is #4 cyl and one of the valve is showing more oil deposit
than the other one.

Will clean the port as well.







The intake manifold.

I don’t want to turn it over to remove the VVIS chamber base yet
as I want to keep the fuel inside the INJ as much as possible.

The base is magnesium so needs to be careful.
Will work on it next week.




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