I just got a call from the shop telling me my new carb is installed and ready to go but the car is flooding because it has a bad charcoal canister. I really don't want to sell out more cash so can I just reroute the lines going into the canister and bypass it? If so what needs to be routed where and what needs to be capped off. Thanks guys
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Help Bypassing Charcoal Canister
Started by mycotopian, Jul 03 2008 04:17 PM
8 replies to this topic
#1
Posted 03 July 2008 - 04:17 PM
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#2
Posted 03 July 2008 - 08:08 PM
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Cap the vacuum line's running to the motor/carb, and put a long piece of tubing on the tank vent on the firewall and tuck it down the firewall into the subframe. And just ditch the canister.
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#3
Posted 03 July 2008 - 09:44 PM
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QUOTE (DEIVIONCRX @ Jul 3 2008, 08:08 PM) <{POST_SNAPBACK}>
Cap the vacuum line's running to the motor/carb, and put a long piece of tubing on the tank vent on the firewall and tuck it down the firewall into the subframe. And just ditch the canister.
Done! Thanks for the info.
Do these things always sound like they are detting when they are cold?
#4
Posted 04 July 2008 - 02:51 AM
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O_o, My question is... how does a bad canister cause a carb to flood?
The breather is at the top of the tank so it's not sucking fuel direct from the tank.
I think the canister itself is designed to be emptied by drawing the fuel up out of the canister by atomizing it off the charcoal and into the air being drawn in by the carb.
Are you sure it's not just that you had effectively had a vacuum leak due to a failed vacuum valve that controls when carb can draw from the canister?
Or am I confusing how the canister works?
The breather is at the top of the tank so it's not sucking fuel direct from the tank.
I think the canister itself is designed to be emptied by drawing the fuel up out of the canister by atomizing it off the charcoal and into the air being drawn in by the carb.
Are you sure it's not just that you had effectively had a vacuum leak due to a failed vacuum valve that controls when carb can draw from the canister?
Or am I confusing how the canister works?
#5
Posted 04 July 2008 - 05:10 AM
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Almost all of the charcoal canisters are saturated with fuel by now. Just part of the age.
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#6
Posted 04 July 2008 - 08:12 AM
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QUOTE (EuphoricBlue @ Jul 4 2008, 02:51 AM) <{POST_SNAPBACK}>
How does a bad canister cause a carb to flood?
Or am I confusing how the canister works?
Or am I confusing how the canister works?
I believe his carb was flooding. That is why he just put on a new carb. This is why I believe his canister is full of gas not the other way around.
I think you have the right idea how the canister works.
Jeff
#7
Posted 04 July 2008 - 10:24 AM
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QUOTE (1985 CRX SI @ Jul 4 2008, 08:12 AM) <{POST_SNAPBACK}>
I believe his carb was flooding. That is why he just put on a new carb. This is why I believe his canister is full of gas not the other way around.
I think you have the right idea how the canister works.
Jeff
I think you have the right idea how the canister works.
Jeff
That is correct. More than likely the carb was the primary culprit.
#8
Posted 04 July 2008 - 02:29 PM
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I would doubt that it's the canister too. Nothing against the guys that worked on your car, but mechanics that really know what they're doing on a carbureted car are a dying breed.
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DarkHand
#9
Posted 04 July 2008 - 03:06 PM
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QUOTE (1985 CRX SI @ Jul 4 2008, 06:12 AM) <{POST_SNAPBACK}>
I believe his carb was flooding. That is why he just put on a new carb. This is why I believe his canister is full of gas not the other way around.
I think you have the right idea how the canister works.
Jeff
I think you have the right idea how the canister works.
Jeff
Ah, ok. Thank you, that makes a bit more sense.
If this is the case I'd recommend not discarding the canister. If your area has smog, it's an offence. Even if it doesn't it's still nice to be friendly to the environment
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My advice would be to just make sure the vacuum valve mechanism is functioning properly, hook it back up, and just go for a good long cruise out of town down the highway (steady 60-70mph is what we are after here) to empty out any excessive fuel buildup in the charcoal canister.
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