Cooling

Vacuum leak check of the cooling system.

When this NSX arrived at my place, the coolant level was already at the MIN so it was leaking from somewhere and as mentioned yesterday, it was very likely to be around the hose fitting of the heater core bleeder plug.
So, left the system under vacuum for 45min to see any further leakage.



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Tags: crank pulley, fuel filter, vacuum fill, vacuum leak check

Categories

Engine/Tyre , Cooling , Fuel and Emissions

The most time consuming ones at the oil cooler area.
Just two hoses yet you will need to allow about 2Hrs for them.
Removing the old red sealant from the bolt thread.





Cleaned ...

Tags: eng oil, oil cooler, oil filter

Categories

Engine/Tyre , Cooling

Based on the green/white powder like debris, I'm now 100% convinced that the coolant was leaking from this fitting.
The photo was taken after I cleaned it but there were markings on the side of the blower motor fan case as well as on the battery top surface.

Not sure how it can happen as the coolant hose was not replaced in the past so possibly ...

Tags: coolant hose, coolant pipe, water valve

Categories

Engine/Tyre , Cooling , Heater, A/C

Nothing new or special here.
Just remove the old coolant hoses and replace them with the new ones.




Even for this low mileage, fairly late model NSX, the corrosion at the cooing sys pipes already started so
it was a very good decision to carry out the cooling sys refresh this time.
Saves the time and cost for the owner. ...

Tags: coolant hose, cooling sys, thermostat

Categories

Cooling

On several occasions, I had to work on NSX with aftermarket coolant header tank (or Expansion tank) and also asked from many owners regarding the use of aftermarket one.


Although they look nice, I saw several issues such as cap not secure enough, leaking coolant due to crack at the welding, design issue with tank expanding under pressure, etc.


As far as I know, I have never seen an aftermarket header tank ...

Updated 22-07-2014 at 10:15 AM by Kaz-kzukNA1 (Updated the font)

Tags: coolant tank, cooling sys, expansion tank, header tank

Categories

Cooling , Parts