Ok, I thought all was good. I was refilling the coolant after my clutch install. I filled the reservoir as much as it would take, then started... let it run... opened the purge valve... burped some air. Refilled reservoir, did it again... oops... let the reservoir run dry. When it was dry, heard and saw steam from the right backside (drivers perspective) of the engine. I refilled the reservoir, and burped again. No more leaky. I drove it to my Honda shoppe for a alignment, and no leaky getting it there. They had it on the lift, and was running it... they saw the same little leaky. I saw the reservoir was empty again. I filled it... ran it again, and no apparent leaks.

Ive drove it now for a couple hundred miles. Some of it fairly aggressive and most of it at 80mph. Absolutely no leaks.

is there some odd condition somewhere when air is introduced from a dry reservoir that would cause this? I mean, there aren't any leaks. Except when the reservoir goes dry from the system purging air. No phantom coolant level drops either.

 

When you filled it, did you run the heater as well? There could be air in the heater core. I think technically there is a second bleeder screw around there that no one uses. Beyond that, or it leaking into your engine, I have no other suggestions.

 

Sounds like you have a leak

do presure test with tool from autozone rental

follow Bentley instructions on bleeding or tis

heater core is always open on these cars