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The mkiv Supra Owners Club

Charcoal canister


SupraD06

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Hiya all, just wondering if anyone can shed some light on the hoses going to the charcoal canister? I want to swap the hoses for some blue hose ive purchased, and just wanted to know a few things. First off are they all filled with fluid? And can i just swap them without having to mess around bleeding air out the system etc

 

Any info would be great.

 

Cheers

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Hahaha, don't let Hodge see your charcoal canister.....I popped my bonnet at his house and his OCD took him by force......he ripped mine out on the spot!!! I dont get any smells etc in my car, just be sure to bend the remaining metal pipe away under the car and you'll be good to go! Gives you more engine bay to polish. :)

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As far as I can tell the petrol tank vents excees vapor pressure through the charcoal canister.

 

In order to do the job properly the vent pipe from the tank needs to remain vented to the atmosphere. Blocking it just allows a serious amount of vapour to build up in your fuel tank between refills, not a good idea.

 

The only safe way to do this is to connect a proper motorsport approved vent to the pipe, either in the engine bay or back at the tank.

 

This will stop petrol from escaping the tank should you be unlucky enough to roll the car in an accident.

 

To simply leave the pipe open is asking for trouble if you ask me.

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As far as I can tell the petrol tank vents excees vapor pressure through the charcoal canister.

 

In order to do the job properly the vent pipe from the tank needs to remain vented to the atmosphere. Blocking it just allows a serious amount of vapour to build up in your fuel tank between refills, not a good idea.

 

The only safe way to do this is to connect a proper motorsport approved vent to the pipe, either in the engine bay or back at the tank.

 

This will stop petrol from escaping the tank should you be unlucky enough to roll the car in an accident.

 

To simply leave the pipe open is asking for trouble if you ask me.

 

I suspect that there is a rollover valve integrated into the tank or the purge line somewhere. It would be very unusual for it to be in the canister. Problem is the Toyota schematic for the purge system doesn't show a rollover valve at all. Might be worth looking on EPC to check where it is.

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I suspect that there is a rollover valve integrated into the tank or the purge line somewhere. It would be very unusual for it to be in the canister. Problem is the Toyota schematic for the purge system doesn't show a rollover valve at all. Might be worth looking on EPC to check where it is.

 

I found "check valve (for main fuel tank)" on Toyodiy.com, part# 90917-10079.

 

It's situated directly under the charcoal canister. Might that be it?

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