I think there was a discussion some time back about dispensing with the charcoal canister – just remove it and join it’s input and output pipes.
Any thoughts/recommendations on the pros and cons of doing this?
Do it 
Linky
Saves a bag of sugar in weight and doesn’t make any difference to the engine, emissions or MOT.
Wrong assumption; although it won’t affect the rather rudimentary emissions check, evapourative emissions without the canister in place are quite significant. Fuel evaporates fromthe tank, is scavenged into the activated charcoal. When the engine is run up, tghe canister is purged. There shouldn’t be any major accumulation of fuel in the charcoal, unless you have a serious problem with the fuel tank over-pressurising.
I can’t see any meaningful benefit for road users in removing the canister entirely (if anything, it will increase fuel consumption). Certainly, there is an aesthetic angle, if you stare at engines all day, but many have relocated the canister to the space above the front wing liner, or have fitted the more compact NB version. An average car will lose about 5-6 liters of fuel via evapourative losses per year. Prior to installation of evaporative loss devices on vehicles, unburnt fuel evaporating from fuel tanks was the major source of hydrocarbons in the atmosphere in city areas (leading to smog).
Removing the canister will not affect your emissions in a measurable way, but it will increase your emissions. It goes without saying if you do this, you should not plug the lines up.
I once decatted a MX5; wish I hadn’t, because it went overnight from being a relatively young feeling car, to one feeling much older (stank of fuel, like an old |Triumph), and my back bumper kept getting blackened.
Moving it seems a good idea, if you don’t like the look of it:
If weight loss is the justification, then it should be the bit you toss, after the passenger seat.
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Hi, im interested in doing an engine tidy, the thought of opening the Bonet to a nice clean engine bay with just an engine in it is a big goal for me, but I want to do it right!
If you had to do it, how would you go about it?
Things like the screen wash are easy to move, a cold air intake (correctly positioned) free’s up a lot of space too, its hard finding the right advice, would you or anyone your know have good knowledge of how to?
Thanks!
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