Go Back  Offshoreonly.com > Technical > General Q & A
Hardin Marine Fuel Sender >

Hardin Marine Fuel Sender

Notices

Hardin Marine Fuel Sender

Old 05-25-2013, 12:41 AM
  #1  
Registered
Thread Starter
 
Join Date: Feb 2013
Posts: 1,123
Received 197 Likes on 115 Posts
Default Hardin Marine Fuel Sender

Fuel level indicator has been reading at or near empty since I bought the boat. Prev owner said he had replaced the sender but it didn't fix the gauge readings.

Received and installed my Hardin Marine solid state fuel sender today. Made my tank depth measurement and cut it so it clears the bottom by 1 inch.
Hooked up the 2 wires and tried to calibrate the "Empty" capacitance with sender out of tank.

Instructions say to apply power and gauge needle should cycle from E to F a few times and stop on E.
Gauge would only go up to abt 1/4 and then drop to well below E (only made 1 cycle).

Discovered I have one of the few 0-90 ohm SW gauges made. Hardin sender is only compatible with 33-240 ohm gauges.

Bought and installed a Gaffrig 33-240 ohm gauge.

Tried the "Empty" cal again and needle only climbs to just below 1/2 tank then drops to just above E (only made 1 cycle again).
Shut off ign and placed probe in container full of gas. Ign back on, and needle only goes to just below 1/2 tank.

Sender is an "Auto Cal" version and has no adjustment screws.

Re-connected the original float type sender and I get good readings at empty and full, but in between, sender is intermittent. I does seem to prove the gauge and wiring are OK however.

Tried calling Hardin but they were already gone for the holiday weekend.

Spoke to rep at CP Performance, but he had no clue.

Anyone run into this problem before?

Last edited by zz28zz; 05-25-2013 at 12:44 AM.
zz28zz is offline  
Old 05-25-2013, 01:20 AM
  #2  
Registered
Gold Member
Platinum Member
 
Join Date: Sep 2003
Location: Bishop,CA
Posts: 382
Likes: 0
Received 0 Likes on 0 Posts
Default

Yup......with Gaffrig gauge and sender. Never did get the new style sender to work. Sent it back to Gaffrig a couple of times and they had me do the calibration deal a bunch of times. It would work on a trip for a while then we would stop somewhere and when we start up to go again it would not work. I could not depend on it. I put the old float type back in and it works fine. Wasted my money on what I thought was the latest stuff and would be better.
blefever 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 - Do Not Sell or Share My Personal Information

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.