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Fuel Sender / Gauge Issue

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=47791
Printed Date: November-15-2024 at 9:28am


Topic: Fuel Sender / Gauge Issue
Posted By: 91NaughtyQ
Subject: Fuel Sender / Gauge Issue
Date Posted: July-23-2019 at 4:26pm
I know there has been many posts about the subject, but I couldn't find an answer so posting now-

The issue I am having is that the gauge reads empty once at half a tank. I have visually inspected tank level.   I don't want to just order a new sender if there may be something I can check and or fix. Any thoughts?

Thanks,
Gary

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1991 Ski Nautique
(Previous)1984 Ski Nautique 2001



Replies:
Posted By: 8122pbrainard
Date Posted: July-23-2019 at 5:45pm
Gary,
Without pulling the sender, the only things you can check/do are:

Clean all connections that may be causing extra resistance.
Make sure the tank sender is grounded well with no resistance to the block.
Check to see I you get the 12 volts nominal to the gauge.

I have a feeling there's an issue with the sender.

-------------
/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: KENO
Date Posted: July-23-2019 at 6:14pm
Originally posted by 91NaughtyQ 91NaughtyQ wrote:

I know there has been many posts about the subject, but I couldn't find an answer so posting now-

The issue I am having is that the gauge reads empty once at half a tank. I have visually inspected tank level.   I don't want to just order a new sender if there may be something I can check and or fix. Any thoughts?

Thanks,
Gary


Did this just start happening or has it been like this for a long time?


Posted By: 1993R
Date Posted: July-23-2019 at 6:19pm
I had the same issue and replaced the sender with one of the new electric ones.
It helped a little but I still hade the same issue.
Now only 1.4 tank off
It ended up being my contacts in the dash.
Once I cleaned them it was fixed.
Also lowered my temps by a few degrees


Posted By: 91NaughtyQ
Date Posted: July-23-2019 at 6:37pm
Originally posted by KENO KENO wrote:

Originally posted by 91NaughtyQ 91NaughtyQ wrote:

I know there has been many posts about the subject, but I couldn't find an answer so posting now-

The issue I am having is that the gauge reads empty once at half a tank. I have visually inspected tank level.   I don't want to just order a new sender if there may be something I can check and or fix. Any thoughts?

Thanks,
Gary


Did this just start happening or has it been like this for a long time?


It has been this way for a while, but I didn't realize it. I just thought I was burning through a lot of gas. It dawned on me when I was on E (I usually never go below between 1/4 - 1/2) and went to fill it up and it only took 16 gallons.

Thanks,

Gary

-------------
1991 Ski Nautique
(Previous)1984 Ski Nautique 2001


Posted By: 91NaughtyQ
Date Posted: July-23-2019 at 6:40pm
Originally posted by 1993R 1993R wrote:

I had the same issue and replaced the sender with one of the new electric ones.
It helped a little but I still hade the same issue.
Now only 1.4 tank off
It ended up being my contacts in the dash.
Once I cleaned them it was fixed.
Also lowered my temps by a few degrees


I completely rewired the dash 2 weeks ago, (fixed my temp issue and a host of others as well) so that isn't it. I did a quick test (ski dim tech had me do it) and the sender is bad. Ordered a new one today. I will post an update once installed and I go below 1/2 tank.

-------------
1991 Ski Nautique
(Previous)1984 Ski Nautique 2001


Posted By: 8122pbrainard
Date Posted: July-23-2019 at 6:46pm
Originally posted by 91NaughtyQ 91NaughtyQ wrote:

   I did a quick test (ski dim tech had me do it) and the sender is bad. .

Gary,
Did he have you ground the sender wire to see if the gauge pegged?

-------------
/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: KENO
Date Posted: July-23-2019 at 6:51pm
I imagine he had you ground the sender and watch the gauge peg at FULL. (edit Pete was a little faster on that question)   

You probably have the floating arm type sender and often with a little patience you can tweak (AKA bend) the wire arm that the float is on to get reasonably accurate readings from FULL to EMPTY.

You might have to do that with the hew one too if you bought the same type .

If you got one of the electronic WEMA type, they're generally better as long as the tube is right for the tank depth.

You can search for WEMA on here for info.



Posted By: 91NaughtyQ
Date Posted: July-23-2019 at 6:59pm
Originally posted by 8122pbrainard 8122pbrainard wrote:

Originally posted by 91NaughtyQ 91NaughtyQ wrote:

   I did a quick test (ski dim tech had me do it) and the sender is bad. .

Gary,
Did he have you ground the sender wire to see if the gauge pegged?


Yes

-------------
1991 Ski Nautique
(Previous)1984 Ski Nautique 2001


Posted By: 91NaughtyQ
Date Posted: July-23-2019 at 7:01pm
Keno - That is correct and yes it is the old float and arm type. I bought one of the new stainless ones with the rod to the correct length and the float rides up and down on that.


https://www.skidim.com/prodinfo.asp?number=WEMSSS-10" rel="nofollow - Ski Dim Part

Gary

-------------
1991 Ski Nautique
(Previous)1984 Ski Nautique 2001


Posted By: 8122pbrainard
Date Posted: July-23-2019 at 7:04pm
Originally posted by 91NaughtyQ 91NaughtyQ wrote:

Originally posted by 8122pbrainard 8122pbrainard wrote:

Originally posted by 91NaughtyQ 91NaughtyQ wrote:

   I did a quick test (ski dim tech had me do it) and the sender is bad. .

Gary,
Did he have you ground the sender wire to see if the gauge pegged?


Yes

That's simply a very quick test and not at all conclusive. It basically tests the gauge and not resistance in the wiring from bad connections nor the sender.

Get the VOM out and:
Originally posted by 8122pbrainard 8122pbrainard wrote:

Gary,
Without pulling the sender, the only things you can check/do are:

Clean all connections that may be causing extra resistance.
Make sure the tank sender is grounded well with no resistance to the block.
Check to see I you get the 12 volts nominal to the gauge.

I have a feeling there's an issue with the sender.


-------------
/diaries/details.asp?ID=1622" rel="nofollow -

54 Atom

/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique

64 X55 Dunphy

Keep it original, Pete
<


Posted By: 91NaughtyQ
Date Posted: July-29-2019 at 12:34am
New sender fixed the issue. Thanks for all the input guys.

-------------
1991 Ski Nautique
(Previous)1984 Ski Nautique 2001



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