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

New WP, new bolts with the red sealant and the original dowel pins.


In the process of cleaning the old red sealant from the 9 bolt holes and oil at one hole.

After carefully resurfacing the mating cyl block, installed the new WP.

Time to carry out the ...

Tags: vacuum leak check, water pump

Categories

TB/WP/Valve Service , Engine/Tyre

The 20 years old WP.


It was not seized yet but the bearing was tired and not smooth.

It is normal to see trace of seepage but with this old design, the leaked coolant was actually landing inside the TB cover which is not good.


Later, Honda modified the design of WP and TB lower cover for this very reason.



...

Tags: water pump

Categories

TB/WP/Valve Service , Engine/Tyre

It was also noticed on the WP as well as on the TB tensioner.

The colour and the material looked to be the same one as the melted potting from the CRK/CYL sensor which is normal on all of NSX but can’t remember seeing so much debris on the cam pulleys.


WP and tensioner will be replaced with the new one and will try to clean the cam ...

Tags: timing belt, water pump

Categories

TB/WP/Valve Service , Engine/Tyre

Before backing off the valve clearance adjuster and removing the TB, checked the valve clearance on some of the cylinders.


They were either at the max limit or just above so seems like it was not adjusted properly last time.


#4 cyl was at the limit so it will be interesting to see how it will improve the deviation in compression data after the service.

As seen ...

Tags: water pump

Categories

TB/WP/Valve Service , Engine/Tyre

Started to clean the cam holders.


Due to the blowby gas and about 1 year old engine oil, the sticky black oil sludge was quite stubborn even for this low mileage NSX.


Decided to soak them in the cleaner fluid for longer period.


Quite normal for any engines with combination of short distance driving and when the engine oil is nearly 1 year old so nothing to worry.


...

Updated 23-04-2011 at 11:10 PM by Kaz-kzukNA1

Tags: cam holder, water pump

Categories

TB/WP/Valve Service , Engine/Tyre , Cooling