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

Brake OH, Cooling Sys, etc 17

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The temperature dropped significantly over the recent days especially in the evening so
before it gets too cold making the coolant hoses stiff,
wanted to finish the most time consuming task.

The 2 coolant hoses at the oil cooler.





As in my recent blog, initially, I was not planning to clean the area behind the crank pulley.
It was like this and still leaking the oil somewhere from the top that
there was no point in cleaning it thoroughly to the level I normally do.

However, I was not comfortable with the area close to the oil cooler base where
I could contaminate the new figure of ‘8’ o-ring while re-installing the oil cooler as
I have to be very quick dealing with the liquid gasket around the upper two bolts.

Cleaned part of the area to this level.







The mating surface at the oil cooler and eng block had to be cleaned quite well using
the ceramic scraper as there were lots of debris from oxidation.









By the way, at this stage, looked to be fine but the top hat of the oil cooler will be getting closer
to the point where I don't feel comfortable without replacing it.

Already few UK based NSX showed oil seepage and even significant oil leakage from there.








Removing the old red sealant from the eng block behind the oil pump housing.








No time taking any photos while dealing with the liquid gasket so just the end result.
2 new coolant hoses and oil cooler installed with new o-ring.

If you have never done this before, please allow at least 2 - 3Hrs just for these 2 hoses from the point removing the wheel.














Categories
Cooling

Comments

  1. greenberet's Avatar
    It's amazing that the top of the oil cooler is made of an alloy that falls into the "stainless" steel range. My HKS muffler was also made of "stainless" steel but that didn't prevent the outer skin from rusting through. It obviously wasn't made of a 316 / A4 grade stainless.