Go Back  Offshoreonly.com > Technical > Electronics
Sending unit works...  out of the tank >

Sending unit works... out of the tank

Notices

Sending unit works... out of the tank

Thread Tools
 
Old 07-27-2020, 04:41 PM
  #1  
Registered
Thread Starter
 
Join Date: Jul 2020
Location: Lake Villa, IL
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default Sending unit works... out of the tank

Hello -

I have a new to me 04 Baja Outlaw 20. Love the boat but the fuel gauge is always pegged on "full".

went thru the standard checks - cleaned connections, wires look good, grounded the sending unit (stays on full), disconnect the sending wire (goes to empty), ran ground straight to battery (still on full). With the sending unit out of the tank and wired up - I move the arm and the gauge reads correctly. Put back in the tank and it pegs on Full again. Tank currently has about 5/8 of fuel.

I thought that unit was independent of anything else on the tank - not sure what could be causing that. Has anyone heard of something like this?
prairie chicken is offline  
Old 07-27-2020, 09:18 PM
  #2  
Registered
iTrader: (3)
 
Join Date: Oct 2007
Location: yorkville,il
Posts: 8,427
Received 87 Likes on 49 Posts
Default

i don,t have the answer but welcome aboard.lots of smart guys on here so someone will have helpful information.
mike tkach is offline  
Old 07-28-2020, 08:31 AM
  #3  
Registered
Thread Starter
 
Join Date: Jul 2020
Location: Lake Villa, IL
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by mike tkach
i don,t have the answer but welcome aboard.lots of smart guys on here so someone will have helpful information.
thanks Mike - i'm a first time boat owner and have had a great summer so far. I'm no stranger to working on things but this one has me stumped.
prairie chicken is offline  
Old 07-28-2020, 09:16 AM
  #4  
SB
Registered
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 13,546
Received 3,116 Likes on 1,403 Posts
Default

If you are convinced it’s not tge sending unit nor ground, did you see if the float ir arm is getting stuck against anything like the wall if the tank ?
SB is offline  
Old 07-28-2020, 09:36 AM
  #5  
Platinum Member
Platinum Member
iTrader: (6)
 
F-2 Speedy's Avatar
 
Join Date: May 2012
Location: Midwest & T-Rock
Posts: 10,418
Received 3,051 Likes on 1,357 Posts
Default

i think the sending unit is grounding out causing the gauge to peg, is there a gasket installed
F-2 Speedy is offline  
The following users liked this post:
OLDRAT (08-11-2020)
Old 07-28-2020, 09:39 AM
  #6  
SB
Registered
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 13,546
Received 3,116 Likes on 1,403 Posts
Default

How come the OP is the only one lucky enough to always have a full tank without refueling ?
SB is offline  
The following users liked this post:
OLDRAT (08-11-2020)
Old 07-28-2020, 10:48 AM
  #7  
Registered
Thread Starter
 
Join Date: Jul 2020
Location: Lake Villa, IL
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

lol SB... until it stops running. I did turn it around about 30 degrees each way and didn't feel any obstruction. the unit is at the rear of the tank with the arm pointing forward.

I agree Speedy - just no clue what it could be... it has a gasket and is in decent shape. A previous owner seemed to have cross threaded one of the mounting bolts and broke it off. Currently it is sitting just high enough to poke thru the mounting hole on the sender. Not sure if that would do anything but I left it as is. I've got it in the driveway this week will take a closer look at that over lunch.
prairie chicken is offline  
Old 07-28-2020, 11:02 AM
  #8  
Platinum Member
Platinum Member
iTrader: (6)
 
F-2 Speedy's Avatar
 
Join Date: May 2012
Location: Midwest & T-Rock
Posts: 10,418
Received 3,051 Likes on 1,357 Posts
Default

Originally Posted by prairie chicken
lol SB... until it stops running. I did turn it around about 30 degrees each way and didn't feel any obstruction. the unit is at the rear of the tank with the arm pointing forward.

I agree Speedy - just no clue what it could be... it has a gasket and is in decent shape. A previous owner seemed to have cross threaded one of the mounting bolts and broke it off. Currently it is sitting just high enough to poke thru the mounting hole on the sender. Not sure if that would do anything but I left it as is. I've got it in the driveway this week will take a closer look at that over lunch.
Id figure you from KS with a handle like that, lol... haven't been chicken hunting is years.....welcome to the board
F-2 Speedy is offline  
Old 07-28-2020, 11:36 AM
  #9  
Registered
Thread Starter
 
Join Date: Jul 2020
Location: Lake Villa, IL
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

lol yep - not many people in IL can relate.... Many years ago I stomped all over the plains playing baseball - went to school in Kearney, NE.
prairie chicken is offline  
Old 07-29-2020, 08:32 AM
  #10  
Registered
Thread Starter
 
Join Date: Jul 2020
Location: Lake Villa, IL
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Update -

I broke down and got a sender, it was cheap. I hate throwing parts at things but figured I'd give it a try. I also was able to get that broken fastener out.

Tested new sender and it did work out of the tank. put the arm in the tank enough that i could move it and it did move with the readings - IMO it read a little high on the gauge but I went ahead and installed (used the new screws with the sender that were shorter - somehow I was able to get the 5th one started and tight).

Progress - it is reading 7/8. The gas level is above 6" out of 10" depth at the sender opening. he boat is sitting with a little slope forward in the driveway so with more gas towards the front of the tank it should read a little high with the arm swinging forward.

Fixed? time till tell. I know i have more than 30 gal of fuel in there so am going to run it a while and monitor.

thanks...
prairie chicken is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.