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We used a product called Tuff Coat. It’s a rubberized paint with non-skid particles. We applied it about 7-8 years ago. It was wonderful! Stopped the leaks immediately. But I think we’ll have to recoat this year. I see some hairline cracks developing where the old grout lines are. Great stuff...

We used our Baja Filter religiously for 3,000 hours on our single engine (FL 120) Defever 41 while out cruising. Never had a fuel problem. They are wonderful. West Marine used to sell them but no more. I don't know if they are available any longer. There are imitators out there. They may be ok...

I guess one does not get to be our age without developing some healthy scepticism. The second place I took the injectors to was American Diesel in Kilmarnock. I figured they should know.

That would be a "no" to both questions Ralph. But two separate entities pronounced the injectors ok.

What do you think the injection pump could do to cause this condition? I mean what could fail?

The story I heard was that Arthur designed the 43 and later the 44 to be single screw. He found there was no market for them and adapted them to run twins. There was one single screw DF44 built a few years ago and shipped to the Chesapeake. Before it was delivered to the owner it caught fire...

We had a single screw 1982 DF 41 which we cruised from San Francisco to New York, did the Loop and then went as far east as Tortola. Very good cruising boat. I hope you don't have twins. It really is better with some stabilization. We installed flopped stoppers on her and they made a big...

Note that the piston I have shown has about 4500 hours on it.

I don't know for sure but I would think the exhaust elbow would be cooler than the side of the engine block at the #6 cylinder. Sounds intriguing though.

Piston crown.

A picture of the piston crown is below (I hope). There's little doubt that heat caused the initial failure. I have not had the injector pump tested. Is it possible that a faulty injector pump could spray too much fuel so that it washed away the oil lining the cylinder wall? I will have the...

I took the injectors to American Diesel and they tested them. Both the pop test and spray pattern were ok. Injectors did not go back In the same hole.

I'll try again to send the picture.

I hope this picture comes through.

We used a new head gasket when reassembling the engine. Mechanic checked various tolerances and nothing caught his attention.

One day after an afternoon out motoring on our 1979 Defever 43 we pulled into the slip and I got ready to shut down the engines. I noticed a knock in the port engine. I checked the injectors at a local shop and they were ok. No indication of coolant loss, and water was exiting the exhaust...

The correct color is Rustoleum Regal Red. It's available at Lowes, I bought some yesterday.