@fast 99 So I took delivery of my new charcoal canister at the end of last week. My main issue with the old canister was when it would get over 80F, and I had one or both tanks full or near full I'd get fuel smell. Sometimes in the truck, but mostly I'd just smell it outside the truck. Well we are in the 90's a couple days this week, today and tomorrow, with Thursday and Friday in the upper 80's. This morning I had two empty tanks, so at lunch I went about installing the new canister. I decided to replace all the vacuum lines and purge line from the canister as the old ones were
@Redfish looking like hammered goat chit. Actually they weren't that bad, I just kind of felt like if I was doing the canister I should do the lines too. The drive home tonight, with two full tanks there was no smell at all of gas. A couple of pictures.
First picture below: The canister. This is 5 or 6 port canister depending on how you set it up. That black knob looking thing at the top middle of the picture is vent. It can be left like it is and used as a 5 port canister, or that little black knob will pop off, under it is a 3/8" connection, which can be connected to some factory air cleaner housings. My air cleaner housing is equipped for that so I popped the cap off. Because the former owner replaced the Q-jet with an Edelbrock I don't have a bowl vent line, so on that tee of ports in the midway on the canister I simply plugged that port off with a rubber cap. More on how to make a charcoal function correctly without the factory controls will be at the bottom.
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Here it is installed below:
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Ran the lines up to the manifold in the factory way. I need to get a larger wiring loom so I can have all the vacuum lines nestled in it.
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Over view below:
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My last comment, I often see where guys will change carburetors, or the factory thermostatic vacuum switches quit working and guys just ditch the canister or leave it in there but with most of the lines disconnect rendering it non-functional. It's really simple to hook up a 5 or even 6 line canister regardless of the carb or what has been changed. Vapor line from gas tank hooks to port marked vapor on canister. The port marked manifold vacuum gets connected to any manifold vacuum source, I've had it teed into the manifold source on the carburetor. The port marked bowl vent, gets hooked to the carburetors bowl vent, if there is no port for a bowl vent line on the carb simply plug it off on the canister. If the air cleaner housing has a 3/8" connection sticking out the drivers side, then pop the cap off the port marked air and run a line between the two. If there is no port on the air cleaner housing simply leave the cap in place on the canister. We have one port left marked control. The control port controls when the canister purges. Simply put any time vacuum is applied to the control port the canister will purge. It purges though the line marked PCV, a fringe benefit to this is the fuel vapor being sucked though the PCV line helps to keep the line clear. From the factory the control line went to one of the thermostatic vacuum switches so that the canister would not purge until the engine was warmed up. Some trucks had a delay valve to in the line as well so you'd have to be a cruise for a few seconds before purge would occur. Since the PO took off most of the vacuum controls on my truck I've simply had the control line teed into the ported vacuum on the carburetor. That's how I had the old canister set up and the new one is like this as well. It's just a simplified purge set up to tee in like that.
Well guys I didn't realize how much I would write, is it worth while for me to make this to be thread of it's own?
