C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Vapor Canister

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Old May 22, 2008 | 01:15 PM
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I have a new emission vapor canister for my 71. There is a large tube on the bottom and several up top. There is a gas line on the frame with a yellow stripe on it. where do all the lines go ?
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Old May 22, 2008 | 01:56 PM
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Isn't there one on the bottom and two on top?
The bottom is a drain which you leave as is, the small steel vent line from the gas tank goes to the small input on the canister and the larger one on top gets a hose routed up to the carb.
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Old May 22, 2008 | 03:46 PM
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My 73 has 3 connections on the top. Carb, PCV & Tank. Tank is the middle connection. If I put my glasses on I can almost make out the writing on the can.
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Old May 22, 2008 | 04:50 PM
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East is right... your 71 should have 3 nipples on top for hoses...1 from gas tank, 1 from pvc and 1 from carb.
Regards,
Alan
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Old May 22, 2008 | 05:19 PM
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Where did you get a new cannister and how much was it?
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Old May 22, 2008 | 08:39 PM
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Thanks for the help. found it on ebay new GM and i won it for 50. mine was missing and the only hose left is the one on the frame with the yellow stripe. I must have to get T's for the others. where does the hose on the carb connnect to 454 / 365hp ?
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