Re: [bolger] Re: MICRO TRAWLER
- Sir,Thanks for your below comments.For engine,I am agree with you.I am from one of the Mediterrenaen countries,standards are notso high.So Indoor engine installation will not be a big problem for standards.Offcourse it is necessary fo security.I think to installone Diesel,air cooled engine.Offcourse ventilation and air intake standards will be applied.Generally,what we are doing in hot summer time.When the engine heat is up,we take off the Engine cover for more air ventilation and more air intake.Besides,half of the engine will be overthe rear deck.So it will be easy to do an operation like this.In order to eliminate fuel vapors,I can install the fuel tank at the open cockpit,at therear side.I really thank you very much for your kind comments.I will take into consideration during the building of MT.Pls find attached another two pictures,builded without the sleeping quarters area.It seems beatiful.Nezih----- Original Message -----From: michaelnotiganSent: Sunday, November 11, 2012 3:42 AMSubject: [bolger] Re: MICRO TRAWLER
The Microtrawler Grebe was a nice build project documented at Duckworks Magazine. She started life as a standard MT but the owner cut back the sleeping quarters area to open up that space on deck for the grand kids to roam about. The third photo looks like a variation of the Berkeley Eastman Can-Du EZ mini-tug, albeit with a western style slanted fwd windshield. I really see an inboard engine creating more design issues that an outboard mounted engine eliminates, but in the end, it is your own interpretation of the design that counts. As long as all installed engine systems are per standards established by the ABYC and are safe, go for it! As you are probably aware, US Coast Guard and ABYC standards for inboard mounted engines will call for proper engine compartment ventilation, spark arrested air intakes and proper fuel line routing and mounting standards to be followed. Enclosing a gasoline powered engine in an enclosed space creates certain hazards that must be taken into consideration! Fuel vapors collecting in that space and an errant spark can result in tragic circumstances and should not be taken lightly. I like that slanted forward windshield. That style came from the US west coast fishing vessels, where the slanted windshield was found to better shed water. Should be an interesting build, Nezih!
- True Doug, Ford FE gas truck engines had larger diameter crankshafts and cam profiles designed more for low RPM torque, compared to the equivalent car engines. Some GMC truck gassers even had exhaust valve rotators and stellite valve seats, anticipating heavier engine load demands.Your Isuzu may have had oil starvation issues if the oilpan capacity was not increased and the pickup lowered. I have a marinized 1956 Packard V8 with the oilpan capacity increased from 5 quarts to 4 gallons and an integral oil cooler built in. Most working boats of 25-30 feet and up have gone diesel but that may not be a practical option for the MT being discussed. 4 cycle outboards have been around for several years now and have a good track record even in small commercial fishboats that get hard use.