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03-05-2021, 10:55 AM
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#1
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Newbie
City: San Clemente, CA
Join Date: Mar 2021
Posts: 3
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Equalize fuel level in Grand Banks Trawler
Does anyone know the fuel valve settings to equalize fuel in the tanks of a 1978 Grand Banks 36 Trawler?
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03-05-2021, 11:00 AM
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#2
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Senior Member
City: San francisco
Vessel Name: Pacific Star
Vessel Model: 1990 Grand Banks 32 #834
Join Date: Jun 2016
Posts: 202
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There should be a fuel line that just connects the two tanks and doesn't go anywhere else. May have an on/off valve on both ends. Open them both. Fuel level in both tanks will eventually equalize, though it may take awhile.
Oldersalt
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03-05-2021, 11:34 AM
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#3
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Guru
City: Gulf Islands
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 2,187
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Both of my tanks go to a valve board from a shut off at tank, there is a shutoff again for both and then it goes to filters. The cross flow has a tap between those two which allows constant equalising or feeding to opposite side engine.
If you post a picture of outlet from tank and your valve board may be able to see if yours is similar
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SteveK AKA Soo Valley
You only need one working engine.
That is why I have two.
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03-05-2021, 11:37 AM
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#4
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Guru
City: Gulf Islands
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 2,187
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Quote:
Originally Posted by Oldersalt
There should be a fuel line that just connects the two tanks and doesn't go anywhere else. May have an on/off valve on both ends. Open them both. Fuel level in both tanks will eventually equalize, though it may take awhile.
Oldersalt
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That is what I thought until having closer look. Now thinking about it the crossflow is raised at about 1/2 tank full. Does that mean gravity will no longer crossflow if both tanks are below that level. If done on purpose i like it as no need then and less sediment transfer would be possible
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SteveK AKA Soo Valley
You only need one working engine.
That is why I have two.
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03-05-2021, 02:37 PM
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#5
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Senior Member
City: Mahón, Menorca
Vessel Name: Halcyon
Vessel Model: 1973 Grand Banks 50
Join Date: Mar 2015
Posts: 228
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Below is a picture of the ER of my earlier boat, a 1979 GB Cl.
In the middle of the picture, below the generator are two diamond-shaped valves. If I recall correctly, one of these would direct the diesel from one or the other tank to the generator. The other did the same for the return to the tanks.
In between them, and hard to see in the picture, is a valve with a lever which could be opened to connect the two tanks and level them.
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Gilberto
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03-05-2021, 03:22 PM
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#6
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Guru
City: Narragansett Bay
Vessel Model: Grand Banks 36
Join Date: Sep 2016
Posts: 1,175
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Quote:
Originally Posted by Oldersalt
There should be a fuel line that just connects the two tanks and doesn't go anywhere else. May have an on/off valve on both ends. Open them both. Fuel level in both tanks will eventually equalize, though it may take awhile.
Oldersalt
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Mine is set up the same way. The cross over pulls from a valve at the bottom of each tank.
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Charlie0
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03-05-2021, 03:24 PM
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#7
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Guru
City: Gulf Islands
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 2,187
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Mine looks the same but is located on the side of SB tank about 1/2 way up
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SteveK AKA Soo Valley
You only need one working engine.
That is why I have two.
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03-05-2021, 03:29 PM
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#8
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Guru
City: Narragansett Bay
Vessel Model: Grand Banks 36
Join Date: Sep 2016
Posts: 1,175
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Quote:
Originally Posted by Soo-Valley
Mine looks the same but is located on the side of SB tank about 1/2 way up
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That seems odd? What about the port side?
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Charlie0
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03-05-2021, 06:02 PM
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#9
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Guru
City: Gulf Islands
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 2,187
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Quote:
Originally Posted by Cigatoo
That seems odd? What about the port side?
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Take yours and move it to face of SB 1/2up. Port comes over to it
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SteveK AKA Soo Valley
You only need one working engine.
That is why I have two.
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03-05-2021, 08:24 PM
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#10
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Guru
City: Saint Petersburg
Vessel Name: Weebles
Vessel Model: 1970 Willard 36 Trawler
Join Date: Mar 2019
Posts: 2,534
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Why? If to trim a list and your boat is not trimmed correctly in the first place, opening the crossover valve will likely make the list worse.
Peter
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M/V Weebles
1970 Willard 36 Sedan Trawler
Current Location: Ensenada MX
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