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Thread Tools | Display Modes |
08-29-2004, 01:01 PM
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#1 |
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Registered User
Join Date: Jan 2002
Location: Rhome, TX
Posts: 209
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Old gas gauge and new sending unit not in sync
I replaced the fuel tank from behind the seat with one under the bed, the new sending unit will not work with the existing gauge. I believe it has something to do with the resistance of the new sending unit. Does anyone know how to regulate the amount of resistance. I know the resistance of the old sending unit is 90ohms the new one appears to be up to 2000ohms. Does this sound right? I believe that a capacitor can be used to reduce the ohms to 90 but how do you select the right one.
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1968 C10 LWB 327 bored 40 over, RHS heads, KB pistons, Eagle rods, Edlebrock carb & intake 1968 C10 flatbed 307 w/ 4 spd manual (dads old ride) 1936 1/2 tn pickup, 400sb 350 turbo (partially restored) 1949 1/2 tn, needs complete restore (future project) 1969 Chevy impala 4 dr no post (wifes future car) 2010 GMC Serria 4x4 crew, leveling kit |
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08-29-2004, 01:20 PM
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#2 |
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Registered User
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 1,534
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You will need to find the correct sending unit. Don't even think about using a capacitor in your fuel gauge circuit. Caps build and hold a charge and could potentially cause a disaster. What fuel tank setup are you using? Is it a Blazer/Jimmy tank?
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'72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.   
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08-29-2004, 01:30 PM
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#3 |
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Registered User
Join Date: Jan 2002
Location: Rhome, TX
Posts: 209
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Yes, I bought the poly tank kit and the sending unit from the same place. Were do I find the correct sending unit to fit that tank?
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1968 C10 LWB 327 bored 40 over, RHS heads, KB pistons, Eagle rods, Edlebrock carb & intake 1968 C10 flatbed 307 w/ 4 spd manual (dads old ride) 1936 1/2 tn pickup, 400sb 350 turbo (partially restored) 1949 1/2 tn, needs complete restore (future project) 1969 Chevy impala 4 dr no post (wifes future car) 2010 GMC Serria 4x4 crew, leveling kit |
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08-29-2004, 01:36 PM
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#4 |
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Registered User
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 1,534
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Check with the vendors associated with this board. I personally have not done this mod., still have the old "behind the seat" smelly slosher.
__________________
'72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.
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08-29-2004, 01:38 PM
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#5 |
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Registered User
Join Date: Jan 2002
Location: Rhome, TX
Posts: 209
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Thanks, I will check with the vendor I purchased it from.
__________________
1968 C10 LWB 327 bored 40 over, RHS heads, KB pistons, Eagle rods, Edlebrock carb & intake 1968 C10 flatbed 307 w/ 4 spd manual (dads old ride) 1936 1/2 tn pickup, 400sb 350 turbo (partially restored) 1949 1/2 tn, needs complete restore (future project) 1969 Chevy impala 4 dr no post (wifes future car) 2010 GMC Serria 4x4 crew, leveling kit |
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08-29-2004, 01:53 PM
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#6 |
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Merciless Butcher
Join Date: Oct 2003
Location: CC Nevada
Posts: 1,447
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You would probably want a resistor instead of a capacitor
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