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08-29-2005, 10:47 PM
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#1 |
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Registered User
Join Date: Aug 2004
Location: Idaho
Posts: 640
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Fuel sender removal?
I've gone through the FAQs and the Google Search. How do you remove the sender unit from the gas tank? Do you have to have a special tool or can you remove it by other means?
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08-29-2005, 11:08 PM
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#2 |
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Senior Member
  
Join Date: Jan 2005
Location: CA
Posts: 5,981
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It's held in by a weird lock ring with tabs sticking off of it. I just use a large flat blade screwdriver and a hammer to tap on the tabs to drive the lock ring counterclockwise. You usually have to alternate tabs to keep the ring spinning. It only has to rotate maybe a quarter of a turn before it will pop free.
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08-29-2005, 11:18 PM
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#3 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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yeah what he said/ it's sealed to the tank with an oring and it's best to get a new one when reinstalling the sender unit
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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08-29-2005, 11:35 PM
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#4 |
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It's a catastrophic success.
 
Join Date: Jan 2003
Location: Oklahoma
Posts: 2,077
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This is the ring part that moves.
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08-30-2005, 12:18 AM
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#5 |
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Registered User
Join Date: Nov 2004
Location: Moore, Oklahoma
Posts: 129
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Is this what you have to replace if your fuel gauge is stuck on Empty? Other than fuel that is ha ha.
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08-30-2005, 12:55 AM
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#6 |
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Registered User
Join Date: Aug 2004
Location: Idaho
Posts: 640
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Awesome, thanks guys. Got it off. I've fixed my gauge on my '66 GMC before by removing the sender and noticing the wire on the sender was broken. I was hoping that was the case on this '70 sender, but everything checks out OK. I checked continuity between the sender box and the top where it attaches to the wire. But when I put my key into "on" position the gauge went all the way down like it should, then way up past Full and just sits there now. Moving the float does nothing.
Any ideas? What's the best way to determine if the gauge or the sender is the culprit? |
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08-30-2005, 05:11 AM
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#7 |
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Registered User
Join Date: Nov 2004
Location: "Under Montana skies."
Posts: 1,836
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Check the ohms on the sender with the float down and all the way up. Should go from near zero to 90 ohms resistence. Dont ask me if anything needs grounding.
__________________
'71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup. |
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08-30-2005, 11:58 AM
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#8 |
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It's a catastrophic success.
Join Date: Jan 2003
Location: Oklahoma
Posts: 2,077
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The sending unit is a variable resister to ground. If your needle is moving chances are your gauge is good. To check your sender with the wire removed ohm between the wire connection and the base metal, move the float up and down to change the reading 0-90 if nothing happens then you have an open circuit. Replace sender.
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08-30-2005, 12:36 PM
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#9 |
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67-72 Addict!
Join Date: Feb 2002
Location: The TAX State!
Posts: 7,856
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When you take the ring off and reinstall you should use a block of wood to tap on instead of the screwdriver to prevent any chance of a spark.
__________________
Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads |
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