Charcoal canisters and engine swaps.

[darwink1]

Just hoping to see what others have done with their charcoal canisters when swapping a different motor into their 60's.

I bought mine swapped (350 sbc) with the canister still hooked up but flopping around loose in the ps fire wall. Its driving me nuts and Id like to either get rid of the thing or bypass it.

I understand that the canister vents the tank and prevents excessive pressure from building and that removing it can result in fuel odors etc. but has anyone just capped the hose coming from the tank with a diff breather type dealie? I have read that plugging it altogether will result in high tank pressures but have seen no feedback from ppl that have done it. Ive searched and heard this mentioned once or twice but cannot find a thread that describes exactly what to do.

If it helps any, the only line still hooked up on mine is the one from the ps fire wall. At least one other line is open to the atmosphere and the electrical connectors are still hooked up to the canister itself (gonna trace where that goes next days off).

Thanks in advance.

D

 

[lehiguy]

Is your motor carbed or TBI or something else?

 

[Wolfpack92flying]

I am very interested in this as well as I am buttoning up my LT1 swap and have the same issue.

 

[Elbert]

I simply ran a rubber hose from the hard line at the firewall....then over to my drivers side fenderwell ...inside the engine compartment. THe rubber hose is just open at the end. Its either vaccume hose or fuel line...just something we had. I've never smelled gas fumes or anything.

My truck is not emissions legal for various other reasons...

I have bought one of those roll-over valves to put in the end of the hose but I've not doen that yet and I'm not sure that its needed as this orginates from the large emissions component in the passenger side rear fender well.

With all of that said....the hardline is basically vented freely to the dirvers side fender well. I've never smelled gas or had raw gas come out of this hose. I don't have the yota charcoal canistor or a GM charcoal canister in my truck, or variou other emissions components that are part of the vortec engine OEM setup.

 

[orangefj45]

If you already have the charcoal canister in there then why not mount it properly. Let it do it's job, not like you're loosing any performance by having it hooked up.

Georg

 

[Elbert]

for my tuck the canister is long gone.....it went away with teh I-6 engine.

I agree that the venting portion has no negative on peformacne.

 

[darwink1]

The motor is a fuel injected ram jet 350 crate and the reason for getting rid of the canister is room. With my new air box sitting right above where the canister is ac lines may be a tight fit. With the canister gone Id have a bit more room to f around.

So just disco the canister, take it out, then run a longer hose from the ps firewall to wherever and cap it with a diff breather type fitting? Sounds simple enough.

Thanks for the replies guys.

D

 

[orangefj45]

It's an fj60. There's more than enough room for a charcoal canister.

 

[darwink1]

Nope!

D

 

[ntsqd]

Not even behind the headlight and under the battery?

Not just because KA says that I have to have one, but I want one for fumes and vapor control (whether I can smell them or not).

 

[orangefj45]

Nope!

D

Please!

I call BS!;p

That tells me that either you're not trying or you just don't want the charcoal canister in there.

Post a pic. Id love to see it just as much as I love a challenge.

Georg

 

[Kanatii]

After 25+ years is there any charcoal left in there or is it just a can full of gunky powder now? Never cut one open to look...

 

[darwink1]

Well.... Its kinda late for pictures, I took it out this morning after getting home from work. It was taking up WAY too much valuable space and Im sticking to that.

I did take note of how it was hooked up though and can pop it back in if I smell fuel. The one line at the bottom of the canister wasnt hooked up to anything. The top has 3 lines, two in a silver ring and one beside the ring. The line beside the ring was plugged with a bolt, the one next to it was hooked up to a fuel line that runs down the firewall under the ac lines, and the one next to that one wasnt hooked up to anything. The last line that originates at the ps firewall was hooked up to the sensor looking dealie attached to the canister. The sensor dealie was still plugged into the original wiring harness for the emissions and the whatnot.

Damn thing weighs 10 pounds but looks brand new for being 27 years old.

D

 

[orangefj45]

Got your pm.

But you haven't posted a pic so......

Sounds like you have the factory Toyota charcoal canister in there. Is that correct? You should be running the gm canister for the engine you've got in there.

Georg

 

[darwink1]

In post 13 I kind of tried to explain what was hooked up. Of all the lines originating from the canister only one (of the 3 on top) was hooked up to an old fuel line that runs down the firewall (on the ps side of the engine). The only other line that was connected originated on the firewall by the ps fender and was connected to the "sensor" mounted to the canister. So of the 4 lines running in/out of the canister only 1 was hooked up. Didnt smell any fuel while disconnecting the lines and the canister itself didnt smell like fuel at all.

Then again it hasnt been driven since november.

D