New CORRECT fuel line

1fishbone

Chief Petty Officer
Joined
Nov 9, 2010
Messages
476
I'm un-clear on this NEW fuel line.

New to me 20' Proline CC, 1998 115 Johnson, center console with an under deck 36 gallon tank, the PO was using an external marine tank under the console claiming the 36gallon under deck tank was contaminated.

First, I removed the fuel line from the boat (a real Mickey Mouse setup)
going to a 12 gallon external tank under the console..about a foot of hose connected to the tank connector has 'slight' exposure to the sun (it's under the console, but no door) the end was soft, seemed like it was 'swollen'.
Printed on the hose, USCG SAE J1527 Type A1 5/16" 1992 Maylasia.

OK, it's 18 years old and not worth cutting off the bad section and re-using as fuel line, but good for cutting up to protect wires from chaffing, use pieces as snood slides etc.

I read on this forum to use TYPE A1 marine hose.
http://www.iboats.com/Shields-Fire-...77811160--**********.455942170--view_id.45038

Now the question:
Does this NEW hose break down over time?
Plan on doing this again in "X" years?

Or, is the NEW J1527 Type A1 hose better?

Thanks

PS
Even though it ran good on the water hose, I also plan to re-build the carbs/fuel pump, and replace all engine hoses too.
I already emptied the in-board tank...7+ gallons of water, 15+ gallons of dark fuel.
 

64osby

Admiral
Joined
Jul 28, 2009
Messages
6,826
Re: New CORRECT fuel line

I'm no expert, but when it gets hard and brittle or soft and mushy, its time to replace it. That could be any where from 1 to 30 years depending on how the Chinese made it.

the PO was using an external marine tank under the console claiming the 36gallon under deck tank was contaminated. .........
7+ gallons of water, 15+ gallons of dark fuel.

Thats about a 2 to 1 mix, sounds a little rich.;):D
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,313
Re: New CORRECT fuel line

The useful life of a fuel hose as recognized by the industry is 6-7 years. Exposure to heat, sun light, etc. can shorten this time significantly. If a hose is not soft and pliable, it's time to change it. No matter how old it may be.
 
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