Universal M25 Fuel Hoses

[Dick Spangler]

Due to ongoing air-in-fuel problems, I am planning to rebuild the fuel delivery system on Tillandsia. Currently, there are 1/4" ID hoses installed. Since the Universal Service Manual indicates that the fuel inlet hose is 5/16" ID I'm thinking that I should replace all the 1/4" lines with 5/16" lines. Any opinions/observations would be greatly appreciated.

Thanks

[Steve Laume]

I was a bit confused when I went to replace a fuel line this spring. I seemed to remember using 1/4" as that is what was on the boat when I took over. The confusion was caused by the manual that said they were 5/16". If you had very long runs to and from the fuel tank and the engine the larger line might be a good idea.

I have the M20 engine and it has always run flawlessly with the 1/4" lines. It certainly couldn't hurt a thing to go up a 16th but it is probably unnecessary. You will have to change all of the hose barb fittings along with the hose, Steve.

[barfwinkle]

be sure and check to see if the nipples will take 5/16" fuel line (been there done that).

And if you are interested in moving up to 5/16" and looking for a deal see

http://www.capedory.org/board/viewtopic.php?t=27240

Fair winds and good luck