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Go Back   SailNet Community > On Board > Gear & Maintenance > Fuel line clogged?
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Topic Review (Newest First)
05-15-2008 12:04 AM
davidpm I just pulled another fuel line. It too was very hard to blow through by mouth. The inner diameter of the line must be smaller than it appears.
So I put it all back together and it seems ok
05-14-2008 06:17 PM
davidpm
Quote:
Originally Posted by erps View Post
It's not likely that one of the high pressure fuel lines got clogged. Fuel goes through one or two filters before getting there, a very sensitive pump and the pressure is really, really high. Lower fuel flow on that one line could indicate there is still air in the system working its way out. Is that particular line kinked/damaged?

I had an universal XP-25 on a previous boat and I don't remember having to crack injector lines to bleed the system. Matter of fact, there were some who advocated leaving one of the bleeder knobs openned all the time, so it was a self bleeding system.
This is m-25 maybe a different engine. Only have one bleeder screw on pump.
Yes I agree that it seems unlikely that a high pressure fuel line could get clogged. But at the same time I was surprised at how it was to blow through the line with the line removed. I'll try the breath test on another line. If its not the same something has to be up.
There is a little ceramic type material that has rubbed off in one place but that is about it.
05-14-2008 04:56 PM
erps It's not likely that one of the high pressure fuel lines got clogged. Fuel goes through one or two filters before getting there, a very sensitive pump and the pressure is really, really high. Lower fuel flow on that one line could indicate there is still air in the system working its way out. Is that particular line kinked/damaged?

I had an universal XP-25 on a previous boat and I don't remember having to crack injector lines to bleed the system. Matter of fact, there were some who advocated leaving one of the bleeder knobs openned all the time, so it was a self bleeding system.
05-14-2008 04:46 PM
davidpm
Fuel line clogged?

We have a universal m-25.
I noticed that when bleading air by loosening the cap on the fuel injectors that one injector seemed to have much less fuel going to it than the other two.
I took off the pipe that delivers the fuel from the pump to the injector, it is only about 10" long on this engine.
I notice that if I blow in one end I get only a little air out the other end.

I'l try another pipe for comparison but is it likely that a simple short pipe can get clogged?
Is blowing on it a good test?

 
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