Hi All,

I've got a water leak at the back of engine.

When the engine is shut off when hot, a hiss is audible from the rear of engine. Water is dripping from bottom of exhaust manifold, but does not appear to be running down back of engine. Looking up I can see coolant marks on the bottom of the head overhang, but on the exhaust manifold side, not the head-gaskett side.

There is no mixing of oil & coolant, and the engine is running really well (no smoke / steam in exhaust or any other bad signs).

The lack of water on the back of the block makes me think the leak is above the head gasket. The metal water line to the turbo appears to be intact. Therefore the only thing this could be is a cracked head I'm thinking.

Is it worth trying out some coolant additive to eak this out a bit?

Thanks in advance for any advice / opinions.

Cheers

Chris