EVAP Canister removal

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megatronz0r

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I have a 1988 RCSB with a carbed 400 sbc. I was thinking of removing the the canister since it really doesn't do anything now. Ive read that it would be wise to keep a valve of some sort to prevent pressure building up in the gas tank. Right as of now i don't have time or the patience to drop the gas tank and run a valve along the fill tube into the bed fender. I was thinking of adding the valve into the engine compartment mounting it to the radiator core support. Is there any dangers to this or any other downsides?
 

PlayingWithTBI

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I have a 1988 RCSB with a carbed 400 sbc. I was thinking of removing the the canister since it really doesn't do anything now.
There isn't a Canister Purge Valve in the 88, just a vacuum line hooked to it from the TB.
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PlayingWithTBI

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I’m just referring to this canister
And that canister is in the bottom right of the upper schematic.

Edit: the canister is filled with charcoal to help reduce the odor of gas, just leave it connected to the line going to the gas tank. YMMV

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Schurkey

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What's going to happen when you install a valve...and the valve closes? Think about this.

Removing the canister is nuts.

What you should be doing is connecting the canister to a vacuum source, (which may be ported, or may be manifold vacuum) so it works as designed. Think like an engineer instead of like a high-school kid.
 

Caman96

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I agree with all of the above advice. In your other thread, you say your trucks been Frankensteined. Seems like it doesn’t need anymore of that.
 
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