I was excited I got my rebuilt vf46 back from JMP about a week ago. Got it all installed and went to burp the system. No weird noises, no smoke, no leaks, I was happy.
I noticed aluminum flakes floating up into the funnel from the turbo reservoir. I am thinking maybe the water pump?? I did check with JMP and he confirmed nothing to do with the turbo.
The coolant has been replaced at least 5 times over 100k miles. I have never used leak stop, but did use the Subaru conditioner last time, but not this time.