2 replies to this topic

[Bell-nose]

Hi,

 

What does anyone know about the emissions canister under the front nearside wing on the MPI? 

 

Is it safe to weld near it?

Apparently it has charcoal in it, is there a maintenance procedure for it?

 

Thanks,

 

 

[jamesmpi]

Evaporative emission canister
The evaporative emission (EVAP) canister is situated beneath the LH inner wing valance, and contains charcoal which absorbs and stores fuel from the fuel tank when the engine is not running. When the engine is running the vapour is purged from the canister into the engine and burned.
The EVAP canister is purged when the EVAP canister purge valve is opened. Manifold depression draws fresh air into the canister through the charcoal, which releases fuel vapour into the inlet manifold.

[eero]

It stores fuel vapor coming from the crankcase, through the breather, until the engine is hot enough, then the purge valve opens, and the fumes are redirected back into the inlet.

 

So i'd say it would be wise to remove it before welding.

 

EDIT: as for maintanence, Rover manual says nothing about it, Haynes manual says to replace it when visibly damaged. So I guess it's a rather care free component for once.

Edited by eero, 18 September 2013 - 05:27 PM.