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

Not much to report while re-connecting all the fittings and placing the parts back in place especially when it started raining resulting in moisture in the air.....




As reported earlier, I was quite surprised to see very clear used oil from the compressor without the metal flake despite the fact that there was slow puncture at the evaporator.
Probably disabling the compressor at very early stage helped a lot.






And it was the same result when I flushed the system.
I was expecting dark brown/black debris coming out from the pipes but all of the pipes were just so clean.

The only dark material came out was when I flushed the 2 condensers in one go as the fitting was seized so I didn’t want to force it.
Not easy to see in this photo but you can see 3 x black cloud like thingy floating at the surface.
Looked as if it was moisture contaminated with some debris and not like hard materials.






I also noticed tiny amount of metal flake when I flushed the suction/low side of the pipe.

It’s the longest single pipe under the floor towards the compressor and it’s after the expansion valve and the evapo.

Quite surprised that tiny metal flake can pass through that narrow exp valve tube and port. The size of metal flake was that tiny...


Normally, it would block the valve causing issue or resulting in very high feed/high side pressure but on my evapo,
the leakage was at the low pressure side at the exit so it’s after the valve….




Anyway, I’m glad I flushed all of the pipes and condensors that I’m ready to re-connect everything together.
While reconnecting, it started raining so the humidity got too high that I decided to stop there and will carry on again on Monday......


Hope there is no leakage although quite often with a/c system, you only find the tiny leakage when you apply
positive pressure and not while vacuum leak testing it.


Kaz