Activated carbon filter - replaceable??
08-20-2002, 12:52 PM
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Activated carbon filter - replaceable??
Got the dreaded fuel smell in the luggage compartment. Did a search and noted reference to an activated carbon canister somewhere. Whereis this and is it replaceable and will it achieve anything????
08-21-2002, 08:24 AM
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John, this one deserves to be up at the top as I replaced my filler neck to get rid of that smell - now much improved but I still think I can smell something occasionally, or am I just a typically paranoid 964 owner?!
Does anyone know if there is a recommended replacement schedule for this mystery cannister?
<img src="graemlins/wave.gif" border="0" alt="[byebye]" />
Does anyone know if there is a recommended replacement schedule for this mystery cannister?
<img src="graemlins/wave.gif" border="0" alt="[byebye]" />
08-21-2002, 08:31 AM
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Okay guys. This is not a mystery cannister it is part of the fuel tank venting system. It is located under the LH fender, drivers side for LHD, pax for RHD. You need to remove the left front wheel and take off the centre and rear wheel arch covers. I have a great photo of this supplied to me by Jeff. I do no thave it handy. Jeff if you read this maybe you can post up that photo of the Turbo with the fender removed showing the fuel vent system. If I remember I will bring it with me tomorrow and post it up.
Beware. I have known these things to be rusted up.
The connections that is. However before doing this stuff change the fuel filler neck. The old ones cracked and should be replaced at the earliest oportunity. Please remember that the whole fuel system is in the luggage compartment. Check the seals on the fuel level sender as well. Check for leaks from the pump.
Ciao,
Adrian
911C4
PS: if your fuel vent system does not work, the DME should log a failure. In the USA this failure should bring on the check engine light. For the rest only a Hammer can find the problem.
Beware. I have known these things to be rusted up.
The connections that is. However before doing this stuff change the fuel filler neck. The old ones cracked and should be replaced at the earliest oportunity. Please remember that the whole fuel system is in the luggage compartment. Check the seals on the fuel level sender as well. Check for leaks from the pump.
Ciao,
Adrian
911C4
PS: if your fuel vent system does not work, the DME should log a failure. In the USA this failure should bring on the check engine light. For the rest only a Hammer can find the problem.
08-22-2002, 05:17 AM
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Dear John,
Here is the photo I promised. Please understand that Jeff Curtiss took this photo. I have cut this part out to save on file size but Jeff is the supplier of the image,
Ciao,
Adrian
911C4
Here is the photo I promised. Please understand that Jeff Curtiss took this photo. I have cut this part out to save on file size but Jeff is the supplier of the image,
Ciao,
Adrian
911C4
08-22-2002, 10:48 AM
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Any idea of part number/cost etc. Anyone replaced this & found success reducing fuel smell??
Why is Jeff Curtis' front tyre so bald!!
Why is Jeff Curtis' front tyre so bald!!
08-22-2002, 10:57 AM
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That is not Jeffs C2. It is a damaged Turbo. I have never heard of one of these cannisters being replaced in a 964.
Ciao,
Adrian
911C4
Ciao,
Adrian
911C4
08-22-2002, 11:41 AM
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Hi Adrian,
That's a great picture--of the receiver/dryer.
Am I missing something? I don't see anything that looks like a charcoal canister.
Thanks ....
That's a great picture--of the receiver/dryer.
Am I missing something? I don't see anything that looks like a charcoal canister.
Thanks ....
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08-22-2002, 01:20 PM
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The charcoal cannister is mounted just ahead of the left-rear wheel. Remove the plastic panel in the wheel well to get at it. The A/C hoses are there too.
I haven't heard of any replacement interval recommendations for these things. Their job is to store vapor from the fuel and expansion tanks. When conditions are right, the ECU opens a valve that allows the motor to draw air through the cannister and ingest the stored fuel vapors. The fuel vapors from the cannister actually richen the fuel mixture somewhat and the ECU is programmed to expect a slightly richer mixture when it opens the cannister valve.
-doug
I haven't heard of any replacement interval recommendations for these things. Their job is to store vapor from the fuel and expansion tanks. When conditions are right, the ECU opens a valve that allows the motor to draw air through the cannister and ingest the stored fuel vapors. The fuel vapors from the cannister actually richen the fuel mixture somewhat and the ECU is programmed to expect a slightly richer mixture when it opens the cannister valve.
-doug
