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clean out of long un-used aux. fuel tank and other fuel tank

GAS engine, transmission and generator repair and maintenance discussion forum.
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glazingguru
Scurvy Dog
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Vessel Info: 1995 Carver 355 Aft Cabin
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clean out of long un-used aux. fuel tank and other fuel tank

Postby glazingguru » July 15th, 2014, 9:55 am

Hi,
I think I saw this subject once before, and possibly a great solution, but can't find it.
I have a 1995 355 Aft Cabin with gas engines. I have owned the boat for a year. The previous owner never used the aux. tank and in fear, I have not either. Is there a fairly simple way to clean out any debris that might be there so that I can use the tank?
Also, can anyone tell me exactly how the aux tank works? as in, will the fuel be used automatically from the aux tank before the fuel in the main tanks is used?
Also, can someone explain how the syncronizer works? there is a guage and a switch.

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Lyndon670
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Re: clean out of long un-used aux. fuel tank and other fuel

Postby Lyndon670 » July 16th, 2014, 7:50 pm

Are you speaking of the one in the swim platform?
Lyndon,
2000 Carver 506
FOXY JOE
Volvo 7.4TAMD
Queens Cove Marina
Georgian Bay, Ontario
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glazingguru
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Re: clean out of long un-used aux. fuel tank and other fuel

Postby glazingguru » July 17th, 2014, 8:05 am

yes. In the swim platform. 68 gallon aux. tank
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Lyndon670
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Volvo TAMD74EDC
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Re: clean out of long un-used aux. fuel tank and other fuel

Postby Lyndon670 » July 17th, 2014, 1:50 pm

You may want to check the tank first. Those aft tanks were known to leak in many occurrences. Might be why the P.O. didn't use it. It's very common, I have helped repair 2 in the last 5 years. If you google it, you should see some results re leaks.
Lyndon,
2000 Carver 506
FOXY JOE
Volvo 7.4TAMD
Queens Cove Marina
Georgian Bay, Ontario
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Topic author
glazingguru
Scurvy Dog
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Posts: 25
Joined: July 30th, 2013, 9:27 pm
Vessel Info: 1995 Carver 355 Aft Cabin
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Re: clean out of long un-used aux. fuel tank and other fuel

Postby glazingguru » July 17th, 2014, 4:29 pm

okay, how would I "Check it"
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Lyndon670
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Vessel Info: 2000 Carver 506
Volvo TAMD74EDC
Location: Georgian Bay
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Re: clean out of long un-used aux. fuel tank and other fuel

Postby Lyndon670 » July 17th, 2014, 11:06 pm

Checking it needs to be done on the hard. You need to cut a couple of inspection holes in the underneath of the platform. With a small amount of fuel in the tank (less than a gallon), you should be able to smell the fuel via the inspection holes after an hour or so. The leaks aren't typical leaks, but are "weld weaps". While you are doing this, lift all the floorboards in the aft stateroom and lift the mattress and the access ports under the bed.

You might think this is too much work, but trust me - the other way to find out they leak is to turn the valve in the engine room, fill them and loose all your fuel in the aft tank, and virtually never get the smell if gas out of your back stateroom again.
Lyndon,
2000 Carver 506
FOXY JOE
Volvo 7.4TAMD
Queens Cove Marina
Georgian Bay, Ontario

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