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Old 27-07-2014, 15:40   #1
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Drain diesel system for "storage"?

Boat is on the hard in the tropics. Today I will run the Yanmar 4JH2E with the fuel line cut off to burn off the fuel, so that we don't have such a mess in 3 days time when the injectors are removed and a compression test performed. It will be a month or two before I get back to doing the rest of the engine work. Any downside to leaving the fuel system drained during that brief "storage" period?

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Old 27-07-2014, 16:20   #2
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Re: Drain diesel system for "storage"?

Hmmm, a couple of months, the tropics? You might get some rust in there. I would be a little worried. The engine fuel filter metal parts will corrode, maybe something inside the fuel pump.

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Old 27-07-2014, 16:29   #3
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Re: Drain diesel system for "storage"?

I would crank the engine after the injector cleaning - before you reinstall them until fuel comes out the injector lines. You can bag the lines with zilpocs to catch spillage.

It may be ok to leave the fuel system dry but you don't have to so avoid the uncertainty.
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Old 27-07-2014, 17:21   #4
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Re: Drain diesel system for "storage"?

It'll be fine.Just don't leave with injectors out to cylinders.
I'd wait till you return with fuel system intact and not run out now.
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Old 28-07-2014, 09:10   #5
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Re: Drain diesel system for "storage"?

Unless you have the tanks so filled that the diesel is creeping up the fuel vent lines, consider sealing those vents to avoid moisture creeping into the tanks. There are some desiccant methods I've seen advertised that do this between the vent skin fitting and the vent line...haven't used them myself, however.
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