keynsham1
Active Member
Whilst waiting for a carburettor balancing tool to arrive and so having nothing to do on my car, I decided to strip down a spare charcoal canister I have. Both the ones on my car leak carbon granules from the bottom which I am sure is wrong! The top of the canister is swaged on but was surprisingly easy to remove by tapping a small screwdriver around the lip:
On both the canisters, vapour enters through the side of the canister. The top connects to the airbox, or is free to air, and the bottom connects to the inlet manifold. Vapour is absorbed by the charcoal, and when the engine is running, fresh air is sucked through the charcoal to remove the absorbed fuel. Ther is a lot of charcoal granules in there, now also on my shed floor!
There are two circular discs which I assume the charcoal is supposed to sit between. Both were sitting at an angle when I took it apart and letting charcoal past but that might have been due to me bashing the canister to remove the top!!:
The side inlet pipe has a filter on so that charcoal cannot come out of it. The bottom just has the exit hole for vapour to be pulled through by the inlet vacuum.
What I don't understand though is that the holes in the discs are much bigger than the charcoal particle size so it can drop through and out of the bottom pipe. When I reassemble it I an going to use new charcoal (Readily available as it is used in fish tank filters!) and a finer mesh to retain the charcoal. My only concern now is swaging the lip back when I reassemble it without making it look a mess.
Watch this space!!!
On both the canisters, vapour enters through the side of the canister. The top connects to the airbox, or is free to air, and the bottom connects to the inlet manifold. Vapour is absorbed by the charcoal, and when the engine is running, fresh air is sucked through the charcoal to remove the absorbed fuel. Ther is a lot of charcoal granules in there, now also on my shed floor!
There are two circular discs which I assume the charcoal is supposed to sit between. Both were sitting at an angle when I took it apart and letting charcoal past but that might have been due to me bashing the canister to remove the top!!:
The side inlet pipe has a filter on so that charcoal cannot come out of it. The bottom just has the exit hole for vapour to be pulled through by the inlet vacuum.
What I don't understand though is that the holes in the discs are much bigger than the charcoal particle size so it can drop through and out of the bottom pipe. When I reassemble it I an going to use new charcoal (Readily available as it is used in fish tank filters!) and a finer mesh to retain the charcoal. My only concern now is swaging the lip back when I reassemble it without making it look a mess.
Watch this space!!!
