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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 29

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EACV cleaned to this level and new filter installed.

The FIV (Fast Idle Valve).
Was very dirty but cleaned to this level.
You can go further and disassemble the white socket and the bypass valve plunger at the middle but I don't want ending up with 'out of spec' fast idle rpm so just cleaned as much as possible and leave them as they are.

Again, they were in really poor appearance but didn't want any debris trapped inside so carefully polished the outer surface.
Ready for the installation and installed.

TH body was cleaned in the past but small accumulation of gunk so small cleaning carried out.

Same story at the back but still can see the end of the idle air adjust screw so not going to remove it and just basic cleaning using INJ/carburettor cleaner.

New coolant hoses and hose clamps installed.