I spent the past weekend working with Bruce Schwab on his wood, foam and
carbon fiber Open 60, Ocean Planet.

In preparation for the Vendee Globe in November, he is paring as much
weight from the boat as possible, and one thought is changing the Yanmar
3GM diesel to raw water cooling, thereby eliminating the second pump,
the heat exchanger tank, etc.

The coolant tank/heat exchanger appear to be part and parcel of the
exhaust manifold, and will not come apart.

He has been told that it is not possible to get a raw water manifold in
the US, as they are only imported with fresh water cooling.

In other parts of the world this engine is raw water cooled, and so the
question posed, is: does anybody reading this group know someone in the
UK or Australia, or anywhere, for that matter, who would assist in
locating a source for this part.

Thanks,

Jonathan