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Cutlass wagon fuel tank ???

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Old January 21st, 2016 | 02:59 PM
  #1  
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CQR
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From: Denver, CO.
Cutlass wagon fuel tank ???

Does anyone know the difference between the 70 and 71-2 fuel tanks on the A body wagon? Is it the pipe for the Evap canister?

Thanks
Old January 21st, 2016 | 06:16 PM
  #2  
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Gary
 
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From: Gillespie County Texas
Fuel tanks did not change in those years. There was a change to the gauge units, however.

The standard gauge unit in 1970 had a supply and return connection with a vented cap. 1970 wagons with the NA9 option had a different gauge unit with supply, return, and vent; these had a sealed cap. NA9 is the Evaporation Control System that was mandatory for wagons delivered in California.

In 1971 and 1972, all the gauge units were the NA9 type.

This is from memory on air conditioned cars. Non-AC cars may have had different gauge units without the return line, but they still differed starting in 1970 because of adding the Evap System vapor line.

I'm sure others will chime in if any of these details is incorrect.

Last edited by VC455; January 21st, 2016 at 06:19 PM.
Old January 22nd, 2016 | 04:20 AM
  #3  
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CQR
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The 72 I'm working on has a single line sender and the pipe for the Evap is actually coming out of the tank.
Old January 22nd, 2016 | 04:23 PM
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Gary
 
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From: Gillespie County Texas
My parts book shows 1970 SW and VC with two tank numbers, one standard and one with NA9. The 1971 and 1972 SW and VC had identical tank part numbers, different from the 1970 tanks.
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