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1994/1995 Charcoal Canister

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Old Nov 14, 2023 | 11:50 AM
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Default 1994/1995 Charcoal Canister

I have a 1994 V8 with non-AEL emissions. The charcoal canister was cracked last year and I had a really hard time finding anything to replace it with. The canister is a bit different from later D1s as the valve that opens the pathway is integral on the canister body. The canister also does not have any ability to open it and replace the charcoal bag etc.

I've since blocked off the engine vacuum, but I'm now smelling gas all the time and am hoping to remedy. Any experience out there with direct replacements or with aftermarket canisters?

Thanks!

 
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Old Nov 14, 2023 | 01:32 PM
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If you don't need to have the cannister functioning to pass an emissions test, you can omit it. The reason you smell gas is because your fuel tank is not venting properly since you blocked oftf the vacuum but left the tank vent line open to vent the fumes under the hood. If you block off both, the tank will become pressurized by fumes or it will get depressurized by fuel consumption and your pump will have to push fuel against a vacuum forming in the tank.

I don't have a '95, but my '98 has a little rectangular valve module. An oversimplified explanation of how it works is the manifold vacuum is regulated by this valve such that tank pressure is relieved by manifold vacuum as necessary. I kept the valve and ditched the cannister (because I needed room for the onboard air compressor). I used some tubing to bypass the cannister. I bet you can figure it out for the '95.

A crude solution would be to drill a small vent hole in the gas cap and keep the vacuum port blocked off. Also block off the vent line under the hood. Then the fumes will go out the fuel filler door instead of under the hood where they will accumulate.
 

Last edited by nathanb; Nov 14, 2023 at 01:37 PM.
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Old Nov 16, 2023 | 09:13 PM
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Thanks for the reply and the fuel cap vent idea. I suspect there might be aftermarket caps that can do this as well.
I guess before resorting to that I'm wondering if anyone has found an aftermarket option for a replacement canister / if there is a source for the originals I'm missing?
 
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Old Nov 16, 2023 | 11:33 PM
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Try Will Tillery. Land Rover New and Used Parts and Accessories ? RoverGuy Land Rover Parts and Accessories
He probably has what you need (used).
 
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Old Nov 17, 2023 | 07:23 AM
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Thanks that's a good call. If I manage to find a new product solution I will post the results.
 
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Old Nov 17, 2023 | 09:59 AM
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Patching the damage with plastic repair epoxy is a possible temporary (or permanent) solution. It has worked for my front grill and other parts. Some sort of mesh screen or fabric can be imbedded into the epoxy for added strength.

One of my original canisters has a Ford GM symbol on it. Maybe search a few GM models (e.g. 1992 Silverado) from that time frame.
 

Last edited by JohnZo; Nov 17, 2023 at 07:40 PM. Reason: GM vs Ford
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