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Old 01-02-2010, 02:37 PM
Bushwacker Bushwacker is offline
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Join Date: Feb 2007
Location: N. Palm Beach, Fl.
Posts: 2,456
Default Re: Fuel line replacement

Quote:
Ok, I've got all the old fuel out & it's time to replace the lines. I read an old post which I can't seem to find, it had a specific fuel line from goodyear that per the poster was a bit higher in price but could stand up to ethanol. I'd rather spend a little now than a lot later. The engine hasn't seen ethanol (yet) so I'd like to make sure the new lines are resistant to ethanol if thats even possible. Also I will be replacing the fuel/water separator, is there one that's better that the rest. I've also read about in-line 10 micron filters, any recommendations there?
Thanks in advance,
Ryan
Here's a link to Goodyear's web site

I suspect the SAE J1527 hose is the one you're thinking about. Any hose stamped SAE 30R6 would resist ethanol and be acceptable for vent line or tank to filter/engine line. SAE 30R9 is better, and can be used in FI systems, up to 100 psi working pressure per the chart in their literature.

As far as fuel filter/water separators, I've had good luck with the 10 micron Racor type with the plastic bowl, which is ok if you're running an outboard (Have to use a metal bowl on an inboard or I/O.) They make cartridges for 2, 10, and 30 micron sizes. That plastic bowl contains a drain valve, which is handy for checking for water or phase separation. Be sure to use a good fuel stabilizer like Stabil; otherwise E-10 fuel can start to degrade in as little as 2-3 weeks! Also, if you get enough water in the fuel to combine with all the ethanol (called phase separation) you can lose as much as 3 points in octane, so buying 90 octane fuel could be considered cheap insurance! Otherwise the 87 octane fuel you bought could end up as 84 octane fuel at the engine, which I think is the biggest danger with ethanol fuel!
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