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Old 10-22-2010, 10:47 PM   #15
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Like you already know, you can't fix it with the tank full. Extend the generator slide out. Cut off tie straps for the vent hose to the fill hose. Remove the spring clamps with pliers on both ends. I just slit the old hose with a knife at the (parallel)fittings to get it off easy. It should be 5/8 fuel vent hose which you could get at Carquest or Napa or a hydraulic hose shop. Get new worm gear hose clamps. When you tie strap the new hose on, be careful, there is gentle rise up from the fuel tank. Make sure there are no dips in the vent hose or it won't work and will bubble up from the fill hose. If you have two fills on yours, each would need a vent hose.

2007 Apex MDTS (425 hp) #75723
2007 Toyota 4-Runner
2014 Ram Laramie 3500
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Old 10-22-2010, 11:08 PM   #16
Join Date: Nov 2008
Posts: 48
Thanks EMike and Kraig. Seems like we've got ourselves a project when we get back to San Diego (currently in Wyoming). And...looks like my husband has nominated me to be the contortionist. Without looking at the problem (it's too dark and cold right now), my first worry is if I need the hook to remove the hose from the nipple, is it going to be a nasty job to connect the new hose? Regardless, I'm sure I'll be back here for help when we get going on this. Thanks again. Susie

John and Susie Balistrieri
San Diego, CA
2004 Alpine Coach 36' MDDS; 2013 Honda CR-V
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Old 10-23-2010, 01:17 AM   #17
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Make sure you replace it with hose thats ok to use with diesel. It usually costs 3 times what gas hoses cost and often have to go to Napa or a Marine place to get it.
-Paul R. Haller-
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Old 10-23-2010, 11:32 PM   #18
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You can do it ok. I never used a hook to remove the old hose. I alwys used sharp knife to cut the hose off the nipple. As far as putting on the new vent hose, it isn't that heavy. It goes on easier if you spray a little WD 40 or silcone spray on the the nipple and in the end of the hose first.
2007 Apex MDTS (425 hp) #75723
2007 Toyota 4-Runner
2014 Ram Laramie 3500
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Old 10-24-2010, 12:15 AM   #19
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Location: Vancouver, WA
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All-is this something that is now affecting the 04 coaches, or are all the years affected? I have not done the inspection, and the unit is only 4 years old from manufacturer, so I'm wondering if I should worry. Is this another issue where WRV bought poor quality material, like the genset exhaust bracket material? Or was it that they used up old hose in 04 and the rest of us are ok?
Monty & Janet - 2007 Alpine APEX 40 MDTS
S/N - 75715 - Retired - Master Certified RV Tech
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Old 10-24-2010, 12:59 AM   #20
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Location: Long Beach, CA
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I was having the same problem with mine and had decided to replace the vent hose. I dripped all the time. I went to do the work and was surprised at the great condition of the hose. So I decided to give the fuel cap another try.

This is my third. And miracles of miracles, the problem completely went away. No drips, even full to the brim. When I compared the new cap to the almost new cap, I realized the manufacturer had put the gasket on upside down. No wonder it leaked! Now it is reversed and saved as a backup. My 3 year old problem is finally gone.

Hope yours is that easy. Mine was giving me fits. Now, all is right with the world.

2003 Alpine 40FDTS (400HP)
Long Beach, CA
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