Extend fuel lines - SailNet Community
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post #1 of 4 Old 12-06-2012 Thread Starter
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Extend fuel lines

I am thinking about moving my primary fuel filter (Racor 500 type). The current location really makes it difficult to drain off water from the bowl or replace the filter. I canít even imagine trying to do it in big seas when in a MUST be done situation. The fuel lines are not long enough to make it to the new proposed location. Is it possible to extend fuel lines (how?) or should I replace both the incoming and outgoing lines?
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post #2 of 4 Old 12-06-2012
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Re: Extend fuel lines

Make sure your pump has the power to pump the fuel up (if it is higher) - then just simply replace the hose with diesel rated hose (A1 if I remember right) of the same size. You can 'extend' the hose with a double barbed end fitting, or barb to threaded to threaded to barb arrangement - frankly new hose is more cost effective.

It will take some wriggling and pulling to get the hose off the barbed end after pulling the hose clamp, but it is do-able.

When putting it back on do not use teflon tape or other sealant than can degrade and clog your filters and injectors, put it back together the same way it is now. If the hose is taking any turns etc. when routed to the new location make sure you have used tie wraps or other hose holders and keep the hose from moving around and chaffing.
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post #3 of 4 Old 12-06-2012
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Re: Extend fuel lines

Chuckles is right - fuel lines are no place to try to save a buck. Even if you did extend them with nipples, you've added 4 more "joints" that can leak and/or allow air in.

Spend the $2.

I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
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post #4 of 4 Old 12-06-2012
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Re: Extend fuel lines

Actually it's closer to $2 a foot of hose, depending on what the inner diameter is.

And just to be sure you get it right, it is the inner diameter you need to be concerned with.

Just one more comment -
If the filter is going to be significantly higher and the existing pump can not handle the head (lift) - you can replace the pump or augment it with a higher capacity pump. You can find MANY diesel rated pumps at your favorite auto parts store for under 50 bucks; or you can go to a marine dealer and spend a couple hundred for the word 'marine'.

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