1967 Lemans fuel sending unit - Pontiac GTO Forum
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post #1 of 5 (permalink) Old 01-05-2012, 05:51 AM Thread Starter
 
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1967 Lemans fuel sending unit

Hi Everyone!
I have a 1967 lemans 326, 2bbl non air convertible.
I'm in the process of replacing my fuel tank and sending unit. I was looking at the old sending unit currently on the car and i see that it's the type with a 3/8 gas line & a 1/4 inch return line. The 1/4 inch line is plugged (not connected to anything). I believe the tank was replaced years ago with a tank from a GTO that's why it has the 1/4 return line.
I'm thinking of installing a new fuel sending unit with just the 3/8 outlet. Does anyone have any thoughts on this? If i install a new sending unit with a 1/4 inch return can i just plugg it with a rubber cap?
Thanks,
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post #2 of 5 (permalink) Old 01-05-2012, 05:10 PM
 
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either way is fine.
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post #3 of 5 (permalink) Old 01-05-2012, 07:58 PM
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The 1/4" return line was used to return vapors to the gas tank on cars that had A/C. If you use the return line I believe you will need a fuel pump that has two hose connections as well. I would get a sending unit with only the 3/8 connection.

JMHO

Randy


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post #4 of 5 (permalink) Old 01-05-2012, 09:26 PM
 
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Adding the return line will also stop vapor lock on hot days, it's a nice upgrade if you already have the sending unit.

Burning rubber since 1982!!
My photobucket, lots of dif car pics.
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post #5 of 5 (permalink) Old 01-09-2012, 02:09 PM
 
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Excuse me for jumping in on this thread, but I finally was able to drop my tank and replace the sending unit. Holy crap was the sock done. Completly black and could almost crumble away by touching it.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, LeMans & GTO Projects, Barn Finds & Restoration Discussions

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