Delete charcoal canister

[dmcindiana]

I?m thinking of deleting the charcoal canister. Primarily I?d like to know what to do with the two hoses that don?t have to do with venting the fuel tank. Connect them together? Cap them?

I already understand that the fuel vent must be left open and directed away from the engine. It?s the two remaining hoses I?m concerned about.

This is all partially due to my getting a new power antenna in there. The original had been removed long ago. There is no way the charcoal canister is fitting back in there. I do not understand at all how the two could have coexisted in there.

Thanks, everyone!

[dmcindiana]

Ok, after a little digging, connecting them together makes no sense. The throttle edge tap will begin a vacuum signal above idle, and it wouldn't make any sense to put that signal onto the crankcase ventilation system.

I would think just plugging the throttle edge hose would be fine, because there doesn't seem to be any function for that tap other than opening the canister diaphragm. But what about the crankcase hose? Okay to just plug?

[David T]

Ok, after a little digging, connecting them together makes no sense. The throttle edge tap will begin a vacuum signal above idle, and it wouldn't make any sense to put that signal onto the crankcase ventilation system.

I would think just plugging the throttle edge hose would be fine, because there doesn't seem to be any function for that tap other than opening the canister diaphragm. But what about the crankcase hose? Okay to just plug?

You should try not to delete the canister, it has no effect on performance and there is plenty of room for the power antennae.

[Rich]

+1 on David T's recommendation.

Don't remove it and plug/shunt all its hoses. That will keep the fuel tank from venting when the fuel warms up. That, in turn, will overpressurize the tank which can cause problems at the tank or at its connections.
Don't remove it and leave the end of any hose from the tank open. That will let gas fumes escape at least when the fuel warms up and probably even when just sitting. Smelly and possibly dangerous.

The canister's there to collect the inevitable gas fumes from the fuel system and later recycle them to the engine when the engine runs. Let it do that.

As David T. said, there are no downsides to that system.


You should try not to delete the canister, it has no effect on performance and there is plenty of room for the power antennae.

[dmcindiana]

Right on, guys, appreciate it.