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joey dee 08-10-2007 10:05 PM

gas vent problem/382
 
has anyone had any problem with the fuel vent on a 382?, my boat is never overfilled, or filled over three quarters, but the vents seem to spill some fuel ,and is discoloring the painted graphics. anybody have some suggestions?

MOBILEMERCMAN 08-10-2007 11:00 PM

Joey dee- seems to me there are only three possibilities, one the tank is full or, two the vent isn't at the highest point in the tank as it sits in the boat ,or three there is a loop of some sort in the vent hose. Sorry, I am not familiar with the 382 fuel tank. My 2 cents.
Jim

t500hps 08-10-2007 11:03 PM

Occasionally I have that problem with my 382...I think there is a loop in the vent hose that can hold fuel. When the air tries to escape during a fill-up, the fuel in the vent hose is "blown" out the side of the boat. Thankfully is is rare on my boat, hope you get it figured out.

J.B. Marshall 08-11-2007 06:35 AM

I have something similar when I fuel up. When I fuel at a marina with one of the big mammoth nozzles I always have fuel spill out of my vent and it is a pain in the a$$ and pisses me off, but when I go to the fuel station by trailer and use the regular fueling nozzle it never does it and I fuel at full speed.

I have checked the hoses from my tank and found no excess loops that would cause this. When running I never seem to spill out fuel.

Audiofn 08-12-2007 09:32 PM

There is sapposed to be a loope in the vent line. I think that it is coast guard regulation?

I do recall this problem being discussed in the past and I seem to recall some one having a fix for it... May try and do some searching...

mopower 08-12-2007 09:42 PM

If I fill my 272 and park it in the driveway , when the fuel expands from heat it backs up the vent hose. Why ? Because the vent is in the rear of the tank and that is lower than the front of the tank where the air bubble is. My only fix is fill up on the way out OR unhook from the truck and lower the bow so the air bubble in the tank is in the back and it will vent properly. My last boat had the vent hose run to the front of the tank and NEVER a problem.

PhantomChaos 08-13-2007 07:10 PM

You gas tank should never be full......you should be out running it!!!!! :)

Never had that problem before......only when topped off.

382 newbie 08-19-2007 08:57 AM

Gas vents
 
05 382 I had the same issue. I cut and shortened the 2 vent hoses. I removed about 12" of hose and reattached to the fittings. They were too long and held liquid. They must be sloping down to the fuel tank to allow gas to drain out of the vent into the tank. Any dip or low spot in the line will hold gas and not allow vapor to pass. It was a pain fueling especially after running in rough water, click stop, spill, click stop, spill. Now it fuels at high speed with no belching.

C_Spray 08-20-2007 07:40 AM


Originally Posted by 382 newbie (Post 2239835)
05 382 I had the same issue. I cut and shortened the 2 vent hoses. I removed about 12" of hose and reattached to the fittings. They were too long and held liquid. They must be sloping down to the fuel tank to allow gas to drain out of the vent into the tank. Any dip or low spot in the line will hold gas and not allow vapor to pass. It was a pain fueling especially after running in rough water, click stop, spill, click stop, spill. Now it fuels at high speed with no belching.

I have just discovered this same issue on my 382 and will be shortening the hoses over the winter. I can't believe that they could squeeze an extra 12" in there, though. I assume that you cut the excess off at the fuel tank end? The hullside fittings are not easy to get to....

J.B. Marshall 08-20-2007 06:51 PM


Originally Posted by 382 newbie (Post 2239835)
05 382 I had the same issue. I cut and shortened the 2 vent hoses. I removed about 12" of hose and reattached to the fittings. They were too long and held liquid. They must be sloping down to the fuel tank to allow gas to drain out of the vent into the tank. Any dip or low spot in the line will hold gas and not allow vapor to pass. It was a pain fueling especially after running in rough water, click stop, spill, click stop, spill. Now it fuels at high speed with no belching.


Exactly... Why would they make it that way from the factory??

trips2win 08-20-2007 07:41 PM

i would check with the factory before cutting the trap out of the vent line it is probable there for reason like keeping gas fumes from always venting ?

382 newbie 09-09-2007 03:01 PM

I think the tank is plumbed before the top deck is installed. The side panel that the fire extinguisher is mounted on comes out with 3 screws. This gives you all kinds of room to shorten these hoses. I took the clamps off just under the check valves. I have not had any belching fuel since. It is a 20 minute fix.

blue thunder 10-01-2007 05:49 PM

I was running in heavy seas this weekend and ended up getting salt water in my fuel tank. Had to get towed. Best I can figure the water got forced into the vent. I believe it is important to route the vent hose up higher than the bulk head fitting before sloping down towards the tank. This will prevent water being allowed in the vent. Kind of line a bilge pump hose routing. That is probably what the factory was trying to accomplish with the xtra 12" hose.

382 newbie 10-11-2007 08:12 AM

Wow it musta been rough to do that. There are two check valves in the vent lines close to the hull fitting that should prevent water from entering. Does your boat have them ?


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