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  Gas tank vent hose for 18' OR

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Author Topic:   Gas tank vent hose for 18' OR
commodore posted 02-14-2002 01:37 PM ET (US)   Profile for commodore   Send Email to commodore  
The end of the rubber hose that connects to the forward end of the tank is deteriorated. There is an inspection plate there (beneath the cooler) and another plate just aft of the helm, but I would like to replace the hose with new without removing the floor panel above the tank. Has anyone ever attempted this? Our idea was to connect the old and new hose with a double barb fitting, then gently pull the old through the aft inspection plate, hoping that the new would follow without snagging. I know that there are metal straps transversely over the tanks. hope there is enough room for the hose to pass under. Any input?

Thanks

maverick posted 02-14-2002 08:15 PM ET (US)     Profile for maverick  Send Email to maverick     
Hi, C - I replaced the hoses on my 85 18.6; but I pulled the floor up. If I was you, I'd check the fill hose, too - my fill hose looked okay initially, but I had already decided to replace everything, regardless, as I did a complete refit...good thing I did as the underside (out of sight) part of the large filler hose had deteriorated badly, and future leakage was imminent. The bad spot was at the 90 degree spot and I would not have seen it had I not removed the hose. If you wish, I can send you a photo of the inside of my boat with the floor out (please email me your email address). Maverick cwweigle@hotmail.com

maverick posted 02-14-2002 08:23 PM ET (US)     Profile for maverick  Send Email to maverick     
Found your email address - I emailed you a couple different things - a photo and a drawing. After looking at my photo, it looks possible that you could pull it thru as you described - take a look. Mav
maverick posted 02-16-2002 10:11 AM ET (US)     Profile for maverick  Send Email to maverick     
Commodore - did you get the info I sent? Mav
commodore posted 02-16-2002 03:16 PM ET (US)     Profile for commodore  Send Email to commodore     
Yes, thanks! I'll let you know if I am successful.
Boilerman posted 02-16-2002 05:52 PM ET (US)     Profile for Boilerman  Send Email to Boilerman     
Replaced my vent hose last season on '86 18' outrage. Didn't pull floor, used inspection plate under cooler & fuel tank. Extremely difficult. New vent hose is thicker by 1/4" - 3/8" O.D. I wanted to use existing vent as pull wire, but my brother pulled it out. We used an electrician's snake, lots of soap, & clamped the new hose between two 2x4's to somewhat flatten it out temporarily, it comes back to round pretty fast so work quickly. It took about couple of hours. We couldn't fit spring around new hose, so I left a larger radius loop @ vent fitting with lots of cable ties. I do remember tearing the hose a couple of times with snake before finishing. Good luck!
commodore posted 02-16-2002 05:58 PM ET (US)     Profile for commodore  Send Email to commodore     
Thanks! Looks like I'm in for some fun. Did your old hose show signs of fuel leakage where it attaches to the tank? Mine does. BTW, can you tell me the correct ID" hose to buy, and how many feet did it take to do the job?

Thanks Again!

maverick posted 02-16-2002 07:29 PM ET (US)     Profile for maverick  Send Email to maverick     
I don't recall the exact size, but I used USCG approved hose - "USCG approved" will be stamped in red on the hose. Mav
Boilerman posted 02-17-2002 05:10 PM ET (US)     Profile for Boilerman  Send Email to Boilerman     
Commodore, yes My vent line was in bad shape. After purchasing boat last year & filling tank for first time I noticed a strong fuel odor. Pulled Port side fuel fill & vent cover, fill line was replaced in 1998, but vent was '86 & appeared to be dry rotted. Purchased approximately 10' - 12' of 5/8" I.D. unaflex USCG type A1 hose. Odor is gone. Good luck!
lhg posted 02-22-2002 02:18 AM ET (US)     Profile for lhg    
If one's Whaler is pre 1989, the three or four fuel related hoses should all be replaced. In '89 they started using the alcohol resistant hose, but before that, they weren't, and will go bad as the alcohol in the gas leaches the chemicals out of the hoses, causing them to get mushy when fuel is present or dry out and get brittle when dry.

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