Michael Cowdrey Posted August 10, 2019 Share Posted August 10, 2019 I am a commercial fisherman with a 650 horsepower E7 in my boat. This motor was built by McDevitt Trucking in New Hampshire. I have a fouled up fuel line that needs to be replaced but they have not produced this motor in a while and do not have these fuel lines available. These are not standard Mack parts because of the water cooled manifold the fuel lines are bent differently to fit the application. Does anyone know a shop that will build a custom line? Quote Link to comment Share on other sites More sharing options...
AZB755V8 Posted August 10, 2019 Share Posted August 10, 2019 Columbus Diesel in Ohio can make just about any fuel line. It will be straight and you will have to bend it. The main issue is the new line is the same length and diameter as the one that needs to be made over. Just look them up on the net. 1 Quote Link to comment Share on other sites More sharing options...
JoeH Posted August 10, 2019 Share Posted August 10, 2019 Maybe have all 6 made up to ensure they're the same length. Quote Link to comment Share on other sites More sharing options...
hurstscrambler Posted August 10, 2019 Share Posted August 10, 2019 Maybe Boston Fuel Injection in Charlestown, MA. If you are in New England. Andy Quote Link to comment Share on other sites More sharing options...
fjh Posted August 11, 2019 Share Posted August 11, 2019 I’m surprised there pulling 650 out of that! 1 Quote Link to comment Share on other sites More sharing options...
Mack Technician Posted August 11, 2019 Share Posted August 11, 2019 Yeah, that’s gotta be bending the block and bouncing the heads? Quote Link to comment Share on other sites More sharing options...
AZB755V8 Posted August 11, 2019 Share Posted August 11, 2019 1 hour ago, Mack Technician said: Yeah, that’s gotta be bending the block and bouncing the heads? If it was a truck application it would probable not last long at the hand or foot of a company driver. Being in a boat is an entirely different working environment. The engine has great cooling to start with. There is loading the engine for long periods of time reducing shock and cycle loading, etc. The Mack E9 was rated at 900hp for marine use and had problems at 610hp in a truck. If the loading is slow and steady as used in a boat the engine can live a long life. Of course time between rebuilds are shorter than a truck engine but it is a matter of safety. No one wants an engine failure 250 miles out to sea and good preventative maintenance is paramount. If an E7 is still in a boat at 750hp it has been doing it for a long time already. If the builder was Jack McDevitt that has a lot of restored Mack's and a dealership the engine was done right. 1 1 Quote Link to comment Share on other sites More sharing options...
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