Originally Posted by
andybond
Is the header tank pressuring?
Fill up the expansion vessel, literally just turn the key on the engine till it just fires up. Switc straight off. Open the expansion vessel
DO MOT DO THIS ON A WARM/HOT ENGINE
does it release pressure?
Retest but leave the cap uncovered. does it bubble like mad?
Are there any signs of oil in the water ( not water in oil ) ?
sorry for sounding dim...but expansion vessel?
It does indeed bubble like mad when cap is off.
And releases a lot of pressure if the cap is on. It is so hard to turn the cap to get it off. I have turn the cap little by little to avoid water burning my hand.
Theres a loud gurgling sound when that happens.................
No sign of oil in water at all.