Hi , about 4 months ago i had my head gasgets done , ive noticed that the water in the expansion bottle bubbles after a small amount of boosting < not ragging it > . when i get home i pop the bonnet and check , its normally bubbling a bit , when the fans cut in it stops bubbling and sits still , is this normal ? the car does not get hot temp gauge never rises , it just squirts a bit out of top of bottle under boost i guess , its used a small amount of water since its been done , or am i being paranoid . thanks chris
