Hi folks,

I suspect my charcoal canister is causing my gas tank to build up a vacuum.  When I take off the gas cap it sucks in. 

I took off one hose from the top of the canister.  The smaller one, and the tank no longer builds up a vacuum.

So, has anyone ever replaced a canister? 
The replacements don’t seem to be exact fits so that will be a bit more challenging then I planned on. 

Anyone have a recommendation for exact or closest fit? 
Also any way to test mine?

I can push air through by mouth.  It is easier to push out then pull in.  But when I push air in water comes out the bottom.

Any collective wisdom on this canister?

Anyone have a new original to sell me as that would be so much easier to install.

Eric Caron 
85 GL Auto 

Mine