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It should be noted that smoke inhalation and carbon monoxide are the reak killers in advance of the heat and flames. A Carbon Monoxide alarm in addition to the smoke detectors should be installed in all passenger cabins and closed spaces. I also added a temperature switch (adjustable) in the...

One of the possible causes of depth finder erratic behavior and random loss of correct depth is electronic noise interference with the return signal. In my case it was the battery charger system. Only caused interference at certain charge amps. Manifested as radio frequency spikes at the finder...

My twin 4-71's have 60,000 hours on them. First started in 1980. Commercial use mostly at about 1300 to 1400 rpm. Fuel consumption abot 3.5 gph each at 1400 rpm. While rated at 1800 rpm continuous duty 115hp. I am taking about 65 hp out of each engine at 1400rpm. 34 inch 4 blade propellers. 3:1...

You think the dsc "accidental" call was annoying, well i had to listen to some lady that was using the dsc as a call button to get her friend attention on another boat for a chat. This was in a simi remote part of the Bahamas, but at least a dozen other boats had to listen to the dsc alert...

Naw the 3-71 is better. The old duce has a fan belt driven fw pump and sw pump. The 3-71 has a blower end driven fw pump and cam end driven sw pump. Probably the 2nd best engine ever built next to the 4-71. I have a pair of 4-71's never had the heads off and still running commercially at 60,000...

Great thread here. Some really good setups posted for bilge pump systems. My 2 cents worth on bilge systems would be. Any boat over 25 feet and not foamed with positive flotation should have a minimum of 3 watertight compartments and preferably 5 compartments. The bilge pump system should...

Oil changes at 400 hours (6 gallons) and additive of Molybdenum disulfide additive for friction reduction. Operating at about 50% loading (1400 rpm) on the continuous rating (1800rpm). Non turbocharged.

A gas inboard NOOOO! NOT for a cruiser. Maintenance hogg and gas with a inside engine is a bomb. If you want fast and gas get a twinn outboard 4 cycle motors and a light weight, possibly a twinn hull cruiser. If you want a distance cruiser a single diesel naturally aspirated will give you 7...

Expect 17 hp per gallon (US) run those 6 cylinder Perkins at 1600 rpm. What is considered hull speed is 1.34 times the square root of the waterline length; this not an efficient speed. It is a maximum speed. Expect 1.15 times the square root of the waterline length as your cruising speed, in...