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 Fuel gauge/sending unit problem ?
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Author Previous Topic: 2000 Carver Voyager 37 Topic Next Topic: Help with 1985 3607  

ken emigh

RO# 25623

Posted - Sep 21 2015 :  07:25:59  Show Profile  Reply with Quote
1996 carver 380
Single fuel gauge for both tanks.
Toggle switch on dash:
Switch is centered.
Move switch to right for starboard tank.
Move switch to left for port tank.
When I move switch to right to check level of starboard tank it reads what I assume is correct level.
When I move switch to left to check port tank it reads a quarter of tank less in difference from starboard tank.
This problem began at the beginning of the season.
Since owning the boat I have always put equal amounts of fuel in each tank when fueling.
There are no leaks!
So my question is,
is the sending most likely bad or could it be the contacts on the switch itself or both?
Thanks in advance.

96KEN

Homeport: Grand Blanc MI

Audrey II

RO# 30499



Posted - Sep 21 2015 :  07:57:40  Show Profile  Reply with Quote
I have to ask this obvious question, you said "Since owning the boat I have always put equal amounts of fuel in each tank when fueling." Are you saying you simply put the same amount in each tank or are you filling both tanks? It is common for engines to not burn the exact amount of fuel and over time the difference in the tanks would grow. The second obvious question is do you have a generator that pulls from one of the tanks. If the answer to the first questions is yes then try going to the fuel dock and filling both tanks and then checking the gauge.

Dave

“Time you enjoyed wasting is not wasted time.” – T.S. Elliotcommon.
-----------------------------------------------------------

1996 440 Trojan Express

Homeport: Haverstraw, NY Go to Top of Page

ken emigh

RO# 25623

Posted - Sep 21 2015 :  08:49:20  Show Profile  Reply with Quote
No I do not have a generator.
Since owning the boat I have put equal amounts in.
I have flo scan so I know what I'm usually burning.
As I said this problem began at the beginning of the season.
I have owned the boat for 4/5 years.


96KEN

Homeport: Grand Blanc MI Go to Top of Page

pdecat

RO# 842



Posted - Sep 21 2015 :  09:06:41  Show Profile  Reply with Quote
Fill the tamks then see. It is possible someone took some fuel.

Bruce



Homeport: Gulf Coast FL Go to Top of Page

ken emigh

RO# 25623

Posted - Sep 21 2015 :  17:31:38  Show Profile  Reply with Quote
Possible but not likely. The port tank reads less fuel than the starboard side.
Last fall when boat was put up they were equally empty.
When I fueled this spring that is when I started having the fuel level reading problem.


96KEN

Homeport: Grand Blanc MI Go to Top of Page

Audrey II

RO# 30499



Posted - Sep 21 2015 :  22:29:38  Show Profile  Reply with Quote
Fill the tanks and then you will know for sure!

Dave

“Time you enjoyed wasting is not wasted time.” – T.S. Elliotcommon.
-----------------------------------------------------------

1996 440 Trojan Express

Homeport: Haverstraw, NY Go to Top of Page

cmariner32

RO# 7269

Posted - Sep 21 2015 :  23:41:45  Show Profile  Reply with Quote
I have an older Carver Santego 380 and my Crusaders do burn at different rates due to the counter rotation of the one engine which for some reason does not burn at the same rate as the normal rotation. Like others have suggested, top off both tanks to see if there is truly a difference in tank readings and run through a tank(s) of gas to determine whether there is a difference in fuel burn-I think you will discover there is. Other things to consider-one prop out of true...sender unit going bad-a definte possible due to age...engine tune....carb (Rochester needing reubuilt) timing off....etc. Just my two cents.

The only thing that works on an old boat.....is the Owner.

Edited by - cmariner32 on Sep 21 2015 23:47:08

Homeport: Clearwater/St. Pete Florida Go to Top of Page

pdecat

RO# 842



Posted - Sep 22 2015 :  10:11:41  Show Profile  Reply with Quote
Easy way to test is to gradually fill tanks taking readings at each increment of added fuel

Bruce



Edited by - pdecat on Sep 22 2015 10:12:24

Homeport: Gulf Coast FL Go to Top of Page

Bob J

RO# 181

Posted - Sep 22 2015 :  14:16:48  Show Profile  Reply with Quote
Could swap wires on gauges & see what results. Probably quickest way to determine if it's engines, senders or gauges.
BOB J


Bob J

Homeport: Waretown, NJ Go to Top of Page
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