djamps

iTrader: (1)

Since installing the GTM (PWR) radiator a month or so ago I got a few observations...

Level in overflow doesn't seem to rise when engine is hot...only thing I notice is it always seems lower than the last time.

Twice I filled it up to the middle but both times it went back down to about 1/4 full within a few hundred miles or a few days worth of driving.

Do I have air in the system slowly bleeding out or maybe something worse?

rcdash

iTrader: (18)

The system is self bleeding, so likely just air. Get the spill proof funnel if you want to get it all out at once.

350z006

iTrader: (79)

Or a slight leak...my overflow empties out every week and I re-fill it, it only leaks when being driven...I definitely have a leak somewhere around either the thermostat or other coolant piping around that area (and I can smell it too), but I haven't had a chance to fix it due to my supercharger bracket being in the way...

djamps

iTrader: (1)

I did find a leak due to a loose overflow bung under the radiator cap and tightened it... but it wasn't leaking much and it still went down after that. I checked it this morning and the overflow was bone dry so I filled it up again.... hoping it's just air, I'll update the thread once I find out more.

- bigc -

iTrader: (18)

if your overflow was bone dry then you're sucking air back into your coolant system. bleed that bish with the lisle spill-free funnel!