rover k series, charcoal filter

[timb2117]

Hi, just nearing the end of my 2005 1800 k series refresh/ restoration, and got time to become vain!-  

Charcoal canister is big ugly and old....any ideas for getting rid of it? (there is a sensor on top) - we don't have MOT's but i'd hate to foul up the ecu settings....

Or where do I source a fresh inner/ assembly as I am sure it will be cactus after 16 years.

Thanks for any help.

Tim

[SM25T]

Can't it be removed fairly easily ?

[SM25T]

I just searched BC for charcoal. Came up with many, including this one ...https://www.lotus7.club/forum/techtalk/removing-charcoal-canister-k-sries

[Wrightpayne]

I took mine off and fitted a sytec non return  valve by the filler cap. Couple of rivets to drill out to remove the bracket. Wires just taped up out of the way. Job done.

[revilla]

ECU won't care. Mapping will be fine. It's not a sensor on the top, it's an ECU-controlled valve to open and close the canister.

[timb2117]

Brilliant thanks SM25 it should be an easy lightening fix :)

[Terry Field]

Tim,

Apologies for a bit of a highjack, but I am just finding my way around my '99 K series. At least now I know what the charcoal cannister is for!

So a couple of questions if I may.

What are the benefits / downsides of removing it, and

How often should it be renewed / replaced, and how can you tell?

Thanks

 

Terry

 

 

[revilla]

It's job is to absorb fuel vapours from the fuel tank, rather then having them escape into the atmosphere. Its only there to reduce this form of emissions. The ECU opens the valve and purges it, allowing air to be drawn through and into the intake system where it's burned under conditions where any degradation of the engine's running won't be noticeable. There's no performance benefit to having it, and I doubt much in terms of performance penalty of it fails.

[Wrightpayne]

Having removed the cannister and fitted a sytec non return valve (99% sure the right way around) I find there is a lot of pressure build up in the tank. This is enough to cause a big whoosh when the filler cap is removed.

Just wondered if this is normal or whether my non-return valve is 'blowing off' at too high a pressure? Just a bit concerned it might be causing too much back pressure on the fuel return line?

Ian

[revilla]

I found the same when I did the mod. I also queried it on here at the time and the consensus was that it was normal. It doesn't seem to have caused a problem. In this hot weather, just be ready to catch the filler cap when you unlock it!

[Wrightpayne]

Seems to be more pronounced in the hotter weather!

Last winter when I took the engine out there was enough pressure left in the tank to cause a not insignificant fuel leak via the feed pipe (I always plug the return!). Enough to have me panicking - we have an integral garage with access off the hall! Opened doors and mopped up with kitchen roll!

Additional step for engine removal is 'Remove fuel cap to relieve residual tank pressure'.

Ian