2002 GU 3L - coolant disappearing over last 10 years...every mechanic failed to find it and couldn't fix the very lumpy start.
Turned out coolant was leaking into a cylinder (damaged head) and the liquid had to be blown out the back before it would settle...obviously not enough to make it bust something. $13K repair quoted including a replacement secondhand head and overbore.
What would it be worth with the dud motor? Entire car is in very good condition other than that...about 25OK kms I think (I don't have access to it).