73 Stingray Corvette 350 cubic inch

5

Asked by Jan 08, 2015 at 09:27 PM about the 1973 Chevrolet Corvette Coupe

Question type: Maintenance & Repair

In the back of the engine, there's a very
small tube coming from what looks to be the
dash of the car. It leads into the engine
where it enters a gold cone, this gold cone
bolts onto the engine. Inside of this gold
cone, there's what looks to be a nut. This nut
is round with no edges. It holds the tube
from leaving the cone. It looks as though
there's oil inside this pencil size diameter of
a tube. I have no idea what it is, but I have
seen to have cut the tube. I'm able to put it
back because I cut the tube right above the
cone. But I can not get the "nut" off the
broken part of the tube, and I can't get the
okay part to stay in place without the "nut"
please help!

5 Answers

5

No answer, need help!

18,855

It sounds like a manual choke, if I'm not mistaken 1973 was the last year for these before switching to electric chokes. A picture would really help in identifying it. If you could specify where on the engine this is found - carburetor, intake manifold, valve cover, exhaust manifold, etc.? (the only other thing I could think of that is "conical" on the intake manifold might be a crankcase vent tube)

120

..... Possibly the tube that runs to a true oil pressure gauge..... If not repaired , guess you'll have a nice puddle of oil in tha' floor or all over the back of the engine......... You didn't say whether or not this car has a factory oil pressure gauge or aftermarket unit ..... ???? .... Good luck.....

18,855

ahh, missed the part about the oil line running to the dash... would certainly seem to be for a mechanical oil pressure gauge.

11,855

Pull the tube out of the cone, and start the engine Does you oil gauge work? If so, that's not what it is, unless you have an after market gauge. Can you follow the tube from inside the cabin and see where it goes? A mechanical choke is run either manually buy using a pull wire, (Not use since early 50s) or by a spring connected to the carburetor, same for an electrical choke that will have a red and a black wire connected to a round small box on the carburetor. If it is hooked to the intake, it may be a vacuum gauge line. In this case, a picture is worth 685 words.

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