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Well... if it's not a hot idle air valve, it sure looks like one, and it has a late-60s Rochester ID number. DK where you'd put it since the threaded carb ports are usually taken up by PCV valves or power brakes.
You would be amazed at some of the factory fixes they came up with.
Never seen one. I have had the following years of Oldsmobiles. '66, '68,'69,'70,'71 (3), '73, '76, '77, and two '79's, one a V6 Cutlass, and the other a '79 Toro. What does it say below the part #? Carb or carburetor? Would the "5" in the part number indicate the year?
Last edited by 1969w3155; April 16th, 2021 at 02:35 PM.
It's a hot idle compensator. The bimetallic strip opens up to let more air in when the underhood air is hot and less dense. As Koda correctly points out, in later years this was built into the carb. QJets put it on the back. 2GCs put it in the top of the air horn.
In a fit of funky 60s adver-spelling, that word is CARB AIRATOR, so I'm not blaming BackGame from not reading it. Aerator is actually a word, on the other hand.
So I suppose one could get this, daisy chain it to a vacuum port, and have this function on an earlier 4 barrel.
April 16th, 2021, 01:49 PM
