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Unless you can find one NOS a wrecking yard is gonna be your best bet. One from any full-size GM car from that time should fit. Cutlass/ A-body MAY interchange but I wouldn't bet the rent money on it.
I'd never heard of a Fuel Standpipe Assembly. There's no mention of this in my '73 Chassis Service Manual, but I looked in the '72 manual, and, sure enough, there it is.
Here's a bit better image of it. This is most certainly a junkyard item. The next page of the manual says that this was not used on station wagons, suggesting that it WAS used on every other '72 Olds model. That ought to make it not too difficult to find one.
It's an emissions thing, designed to recover fuel vapor that evaporates off the tank. Vapor condenses back to liquid fuel inside this thing and the liquid goes back to the tank thru the opening in center vent tube.
It's easy enough to bypass but with this high-volatile mess that passes for fuel now I'd be inclined to keep it in place instead of bypassing it and going to an open vent system. You might get a few extra miles out of a tankful instead of your expensive gasoline just going into the air and creating global warming ad nauseam.
Great thing is these things were mounted in the trunk so are usually in decent shape- provided you find a car that has one. Used 70-72, and as we all know not many of those left in yards.
The standpipe assembly uses a very thick orange colored gummy gasket between it and the body. That material is not used anywhere else on any car I've done.
August 24th, 2016, 03:46 AM
