Removing gas from an old sportfish while in the water?

jase34242

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Jun 3, 2023
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21
What's your goto method of removing gas from a boat (35ish feet, sport fish, gas motors) that's sitting in the water?

I actually bought a little pump specifically made for gas, and got the intake hose pretty far in to the gas filler line, but there's a 90 degree turn twice it seems, couldn't get it to where it needed to be to pull the fuel out..

My local guy will come get the gas and dispose of it for 2.15 a gallon. Gas is approx 2 years old and started up and ran engines fine about 6 months ago, has had the correct amount of stabil in it the entire time.

The reason for pulling the gas out is that before this boat leaves the dock again it's going to need to be pulled and running gear re-done, etc.. she is NOT moving under her own power again until being on the hard for a while..

If she randomly sinks one day I'd like to avoid paying the huge amount of fines for oil and gas in the water. Yes planning to pull the oil and trans fluid myself, while leaving a small amount of lubricant in each cylinder.. and knowing that I wont get 100% oil out of the motor is fine too.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Jul 23, 2011
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51,815
pull the inspection cover over the tank
pull the fuel sender and pump out thru the sender hole.
then you can clean out the tank thru the sender hole.

or you can pull the fuel out thru the fuel pickup tube
 

Lou C

Supreme Mariner
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Nov 10, 2002
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13,785
Might have to temporarily replace the anti siphon valve with a plain barbed fitting to get it to siphon.
 

redneck joe

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Mar 18, 2009
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When I bought a boat sitting four years with an 'empty' tank. I added a cheap inline fuel filter to grab the varnish turning loose. I bought ten of them, eight of which was were replaced first season. Replaced one more next 6 years I owned the boat. Replaced when it started running like crap. I put in a very easy to reach spot.
 

alldodge

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The reason for pulling the gas out is that before this boat leaves the dock again it's going to need to be pulled and running gear re-done, etc.. she is NOT moving under her own power again until being on the hard for a while..

If she randomly sinks one day I'd like to avoid paying the huge amount of fines for oil and gas in the water.
Guess I'm missing something
Why not wait for it to get on the hard and then do something with fluids.

Is it in danger of sinking now?
 

jase34242

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Jun 3, 2023
Messages
21
Guess I'm missing something
Why not wait for it to get on the hard and then do something with fluids.

Is it in danger of sinking now?
No, not in danger of sinking now any more than any other day. I'd just like to eliminate the liability of adding fuel to the mix if she goes does. I can prob handle the cost of getting her back floating and out of the water, but throw gas and oil into the mix and I'm bankrupt. She's a liveaboard for now.
 

DeepCMark58A

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Aug 17, 2015
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2,837
I would use the same hand pump and hose system I use to change out the transmission fluid in my boat. Might take you a while but no spark and cheap enough at Walmart.
 
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