Where did the air go? - SailNet Community
 
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post #1 of 9 Old 06-30-2015 Thread Starter
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Where did the air go?

Replaced the diesel fuel line between the tank and the filter. That is all I did, didn't bleed the line, didn't prefill the line. No precautions taken to eliminate the air in the line. That was about 2.5 hours of run time ago. So where did the air go? Shouldn't the air have been sucked up into the engine by now starving it for fuel? Filter bowl is full. Runs fine.

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post #2 of 9 Old 06-30-2015
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Re: Where did the air go?

Self-bleeding?
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post #3 of 9 Old 06-30-2015 Thread Starter
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Re: Where did the air go?

Self bleeding? It's a Yanmar 2gmf20. Would there be some sort of fitting/device on the fuel filter?

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post #4 of 9 Old 06-30-2015
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Re: Where did the air go?

It's likely in your fuel filter, but it may have emulsified and burned off.

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post #5 of 9 Old 06-30-2015
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Re: Where did the air go?

Air will work it's way out by its self. I regularly service heavy equipment. Just keep the pedal to the floor after changing the filters. Most of the time they smooth out after about 10 seconds. Then occasionally you gotta bled them.

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post #6 of 9 Old 06-30-2015
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Re: Where did the air go?

A finite quantity of air can be digested under the right conditions. It's much worse if you've got a leak in your fuel lines and an unlimited amount of new air getting in.
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post #7 of 9 Old 06-30-2015 Thread Starter
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Re: Where did the air go?

Here I've been under the impression any air would stop the engine.
Thanks all for clearing this up.

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post #8 of 9 Old 07-01-2015
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Re: Where did the air go?

That far up the system, it may be in the top of your primary or it can trickle through the lines and go out the return lines. I wouldn't worry after running for that long.
I can often change the primary w/o bleeding the system, though more rarely the secondary on the Perkins.

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post #9 of 9 Old 07-02-2015
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Re: Where did the air go?

Probably back to the tank via the return line. You got lucky.
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