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

As the TB Rear cover was missing the rubber seal, lots of oil/debris were observed around the area.


Due to the damage to the Front valve cover seal, some sort of chemical managed to get inside the TB area and changed the colour of almost half of the TB Front cover.


It will be cleaned thoroughly during the process.

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Tags: blowby gas, tb cover

Categories

TB/WP/Valve Service , Engine/Tyre

Now I understood why there were so much oil around the engine head as well as some of the spark plug body.


Almost all of the fixing nuts for the valve covers were not tight enough especially the ones under the IGN Coil covers.


They were just finger tight.


Probably, the valve cover gaskets, seals and the round disc seals under the nuts were not replaced during the last TB service and thus, couldn’t get proper ...

Tags: tb cover, valve cover

Categories

TB/WP/Valve Service , Engine/Tyre

Three hoses under the centre floor section are done.


Moving onto the engine bay.

As seen on other NSX, part of the rubber seal at the Thermostat was already deteriorated and gone missing.


Replaced it with the new spec.

...

Tags: coolant hose, thermostat

Categories

Engine/Tyre , Cooling

While dealing with the TB/WP/Valve service, it is easier to work on the cooling system in parallel so started replacing the coolant hoses.


This NSX is RHD, NA2, DBW, MT model so 21 hoses in total.


During the winter when I work on the cooling system, I normally place the hoses on the oil heater to keep them warm to assist the installation.

...

Tags: coolant hose

Categories

Engine/Tyre , Cooling