Outer Limits 4x4 Board

Yesterday a few mates came over and just were mucking around and one of my mates was looking through my engine bay and we spotted a big cyclinder on the right side of the engine bay. its always been there ive just been to lazy to fiqure what it is. i looked through my haynes manual and it reckons its an early from of a cat convertor?


Ive found out through the mitsubishi section that it is a charcoal filter that it is

It's a charcoal canister, to catch fuel vapour from your fuel tank. While your engine is running it sucks a small amount of air through the canister, so the vapour is burnt.

I'd be surprised if it makes a measurable difference to your power, and it is illegal to remove it.

-Do any of you guys know if it will damage my engine if it take it off

thanks

Wont make any difference. It has to be there for rego due to emissoin laws. If you run straight LPG it cool to remove it.

I guess you can block the vacuum line if you really want.


Cheers

If it's a fuel injected vehicle it will probably contunually throw codes related to the emmission control not functioning correctly.

The carbon caniser is a benign piece of equipment thats only purpose is to trap vapours from the tank rather than vent them to the atmosphere when the vehicle is not running. There is a small solenoid that vents the contents of the carbon cannister into the engine inlet manifold when the engine is started.

There are no performance/economy gains to be made from removing it unless you are on straight LPG, when it is not needed. If underbonnet space is a problem, they can usually be readily moved, or a smaller canister fitted from another make/model.

Edit: looking at yours, obviously not EFI. Object at tail of the arrow is the solenoid by the look of it. IIRC some old cars use an engine vacuum operated solenoid, this looks like what you have

cool thanks

If it's a fuel injected vehicle it will probably contunually throw codes related to the emmission control not functioning correctly.

nah ive got a good ole carby


ok but i got one more question - if i just take the cansiter out and connect the two hoses will it be right in the long run(it starts up fine and runs fine).

also when i was looking at it yesterday the bottom part was blocked so i spose i ve been running with out it for a while.

Most charcoal cannisters usually double has tank breathers.
If removed, make sure tank has a way of venting off pressure build up (like hot fuel when parked in sun)
Also make sure tank can suck in air, to replace fuel used.
If not, it can get quite dangerous and/or damaging.
I have no idea of your truck, so is just general safety warning.

christover

NCpaj wrote:cool thanks

If it's a fuel injected vehicle it will probably contunually throw codes related to the emmission control not functioning correctly.

nah ive got a good ole carby


ok but i got one more question - if i just take the cansiter out and connect the two hoses will it be right in the long run(it starts up fine and runs fine).

also when i was looking at it yesterday the bottom part was blocked so i spose i ve been running with out it for a while.

Might be a one way valve in the bottom of it.

Is there a reason you NEED to remove it????

"If it works, don't 'fix' it"

PS. I don't presently have a cannister fitted, as it and all my spares have died and seized up.
So temporarily I just have a fuel filter on the end of the vent line, and blocked the vac line to carb.
Make sure vent line from tank is positioned in a way to avoid fuel spillage/syphoning in a flop or roll over.
Avoid venting fumes under bonnet, as wayward sparks could be a worry.

I'd leave it there, and/or replace it with a working one.

fuel vapour lock can imitate carby issues.

christover

Thanks for the replies.

Is there a reason you NEED to remove it????

well in our rush to figure what it was we cut it open , found heaps of charcoal and im trying to work out if i can kinda just sillicon it back together or if ill go to the wreakers and get another one (ill probably go to the wreakers)

make sure it allows air to go thru, blow in all its orrifices, see if it works

lol yeah.

ive tested that,its works. but now theres no charcoast in it. its just basically a empty cyclinder with an inlet and outlet.

NCpaj wrote:lol yeah.

ive tested that,its works. but now theres no charcoast in it. its just basically a empty cyclinder with an inlet and outlet.

Go to the wreckers, even new I don't think they would cost much. Shouldn't need to match the make/model, just make sure the hose sizes match and it's about the same size.

. i just put 2 in the bin last week. for 99c you could havegot them off ebay