I've just done a complete head overhaul and got it all back together, fitted new water pump while i was there and i've refilled the coolant, anyway basicially i filled it up slowly to let all the water get through the system after a full clear out. But the issue now is after getting her running it's lost/water level has dropped about 1L of coolant. This wasn't a fast drop but the car hasn't been properly on a run as it's off the road till april. Is it just the coolant re-filling the water jacket/rad/heater matrix? I can't see any external leaks, at worst i've somehow fecked the headgasket and it's burning water? but is this possible? I'm sure i fitted it all correctly but you never know, can't elliminate anything at this point? I did save most of the coolant from when i took the car apart, but did loose some, i'd say i saved 5L and so far topped up with 2.5L The exhaust is a bit smokey but this hasn't been running for 4 months and just had head etc cleaned out and not been run at temp/under load so no time to clear it all out. Anyway I'm going to give it a proper inspection and keep an eye on the level for now hopefully nothing to serious, at worst another strip and re-fit.