1979 V-22 Outrage—Slow Fueling

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
Spc337
Posts: 10
Joined: Thu Aug 10, 2017 4:44 am

1979 V-22 Outrage—Slow Fueling

Postby Spc337 » Thu Jul 12, 2018 6:35 pm

I've recently purchased a 1979 V-22 Outrage in very good condition. Our maiden voyage was great, everything was smooth as expected. My one concern is the fuel filler seems like it has a blockage as it can only accept a trickle.

I've checked the vent line and it seems clear. Now I know the usual suspicion is the tank and hoses, but both were professionally replaced: the tank in 2007 and hoses in 2016. Looking at the hoses behind the starboard cover and they seem great (Marine Fuel Hose on the Filler and Goodyear rubber on the vent line). I can hear, via the starboard outside vent cap, the fuel entering the tank slowly.

Before I have to get too extreme, what steps can I take to diagnose the problem to isolate the cause?

Would someone scope the filler hose to see if there is a kink or some other obstruction below the deck?

Should I blow air through the vent line to make sure it is escaping—but given I hear fuel, I'm sure that is clear.

I did blow on [the vent line], and [found it] had zero resistance.

Any thoughts?
Boston Whaler 1979 V-22 Outrage

jimh
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Location: Michigan, Lower Peninsula
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Re: 1979 V-22 Outrage—Slow Fueling

Postby jimh » Thu Jul 12, 2018 7:01 pm

What is the static trim on the boat when you are trying to add fuel to the fuel tank via the on-deck fuel filler port?

What are the date marks on all fuel hoses?

Do the hoses clearly state they are alcohol resistant?

Do the hoses clearly state their USCG rating designation as A1, A2, B1, or B2?

Acseatsri
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Re: 1979 V-22 Outrage—Slow Fueling

Postby Acseatsri » Thu Jul 12, 2018 7:58 pm

Since the tank was replaced in 2007 and the hoses in 2016, I would venture a guess that the fill hose is too long and either the slope isn't constant or there's a belly in the line. If there's a kink, it's too sharp of a bend where it goes under the deck. Consider adding a 90 degree elbow at the bend.

Spc337
Posts: 10
Joined: Thu Aug 10, 2017 4:44 am

Re: 1979 V-22 Outrage—Slow Fueling

Postby Spc337 » Fri Jul 13, 2018 12:34 am

jimh wrote:What is the static trim on the boat when you are trying to add fuel to the fuel tank via the on-deck fuel filler port?

What are the date marks on all fuel hoses?

Do the hoses clearly state they are alcohol resistant?

Do the hoses clearly state their USCG rating designation as A1, A2, B1, or B2?


Marine A2 - compatible with Alcohol blended fuels. I didn't see the date but I believe it is less than 2 years old and looks in good shape. Even the bend doesn't look kinked.

I was filling the boat while on the trailer so a slight incline but suspect the same as if in the water.
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Boston Whaler 1979 V-22 Outrage

jimh
Posts: 4780
Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula
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Re: 1979 V-22 Outrage—Slow Fueling

Postby jimh » Fri Jul 13, 2018 9:03 am

ROGER on “slight incline”—but what way?

For proper fuel flow into the tank the trim on the boat must be down by the stern.

If the trim is down by the bow then fuel remains in the forward part of the tank and tends to block the vent line and slow the flow of new fuel.

Spc337
Posts: 10
Joined: Thu Aug 10, 2017 4:44 am

Re: 1979 V-22 Outrage—Slow Fueling

Postby Spc337 » Fri Jul 13, 2018 5:20 pm

I could understand how that could happen. On the trailer it looks to be stern down. However, my tank has maybe 20 gals currently so it would have to be an extreme trim forward to interfere in my opinion. If this was happen towards the end of the fill, I would see how this could happen.
Boston Whaler 1979 V-22 Outrage