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914/4: 70 71 72 73 74 75 76 914/6: 70 71 72

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> Fuel Evaporative Control System-AKA Charcoal Canister, More information than anyone wants to know
Pat Garvey
post Aug 24 2011, 07:16 PM
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QUOTE(SirAndy @ Jun 30 2010, 10:37 AM) *

QUOTE(Pat Garvey @ Jun 29 2010, 05:52 PM) *
I suppose after that some " parked time" the pellets could clear of hydrocarbons, but would then absorb ambient moisture.

When i removed mine ('70 914-4), i opened it up to have a look inside. It was empty! (IMG:style_emoticons/default/huh.gif)

I guess after 30+ years, all the charcoal inside had turned to dust and was happily burned by my engine ...
(IMG:style_emoticons/default/popcorn[1].gif) Andy

That is so funny! But probably true. Think I'll open mine up & see what's in there!
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1970 Neun vierzehn
post Aug 26 2011, 09:24 PM
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Not all 914s had a charcoal canister. This, from an early '70/4......


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1970 Neun vierzehn
post Aug 28 2011, 06:00 PM
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the '70/4 is a 49 state car, built date 01/1970


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mountainroads
post Jun 19 2013, 02:26 PM
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This is a great thread. Can somebody please confirm if the same system was used on the -6 models? (I've looked, and I can't find a definitive answer.) Thanks.

- MR
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jrrhdmust
post Jan 10 2014, 12:13 PM
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so can someone tell me where to pick up new charcoal for the system?
Thanks
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Pat Garvey
post Jan 16 2014, 08:00 PM
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QUOTE(mountainroads @ Jun 19 2013, 03:26 PM) *

This is a great thread. Can somebody please confirm if the same system was used on the -6 models? (I've looked, and I can't find a definitive answer.) Thanks.

- MR

Nope.
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Pat Garvey
post Jan 16 2014, 08:01 PM
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QUOTE(jrrhdmust @ Jan 10 2014, 01:13 PM) *

so can someone tell me where to pick up new charcoal for the system?
Thanks

Me too!
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euro911
post Jan 16 2014, 09:43 PM
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(IMG:style_emoticons/default/popcorn[1].gif)

I don't run one on the BB, but I'm sure my wife's car needs the charcoal replaced
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1970 Neun vierzehn
post Jan 17 2014, 03:22 PM
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QUOTE(Pat Garvey @ Jan 16 2014, 06:01 PM) *

QUOTE(jrrhdmust @ Jan 10 2014, 01:13 PM) *

so can someone tell me where to pick up new charcoal for the system?
Thanks

Me too!


I don't think you need the charcoal Pat, since your car hasn't run in, what, 15 years? But if you really would like some charcoal, maybe your local WaWa might have some. (IMG:style_emoticons/default/poke.gif)


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Pat Garvey
post Jan 17 2014, 05:43 PM
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QUOTE(1970 Neun vierzehn @ Jan 17 2014, 04:22 PM) *

QUOTE(Pat Garvey @ Jan 16 2014, 06:01 PM) *

QUOTE(jrrhdmust @ Jan 10 2014, 01:13 PM) *

so can someone tell me where to pick up new charcoal for the system?
Thanks

Me too!


I don't think you need the charcoal Pat, since your car hasn't run in, what, 15 years? But if you really would like some charcoal, maybe your local WaWa might have some. (IMG:style_emoticons/default/poke.gif)

It's only been 7 years! I've told you a million times not to exaggerate. And, don't you dare denigrate my WAWA (not the George Harrison variety). (IMG:style_emoticons/default/KMA.gif)
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rhodyguy
post Jan 23 2014, 09:35 AM
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there's no need to spend what seems like a small fortune on a couple of pounds of pellets. i found them at amazon. be careful of the small line fitting while opening and closing the canister. with carbs and the stock rear firewall location there will be fitment issue. you'll need to drill a small hole closer to the centerline of the engine to accommodate a bolt (same size as the stock mounting stud) for the bracket.
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euro911
post Jan 23 2014, 01:59 PM
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Does it matter if it's installed at the fuel tank, or in the engine compartment?

Where's the better (most efficient) location?
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rhodyguy
post Jan 24 2014, 08:39 AM
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pretty sure the line locations and the lengths will dictate placement. on the 74' i'm working on, the small plastic line to the canister from the tank runs to the engine compartment thru the center tunnel (i think). its long enough to run to the stock rear firewall mounting point. the large line (single) from the port on the fan shroud (pass side) is in the engine compartment. the canister is the plastic version. trying to replicate the stock setup and to determine exactly how to use the carbs to draw off the vapors. i'll post some pictures later.

the canister, metal, on my 73' would be mounted on the fuel tank with the 2 long shroud lines running under the dr side rocker and a short small line to the nipple on the canister from the tank.
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euro911
post Jan 24 2014, 02:09 PM
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The 'BB' is a '75 and the small diameter hose is still there, so It would probably be best to find a good location in the engine bay (IMG:style_emoticons/default/idea.gif)
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Porsche930dude
post Feb 20 2014, 08:44 PM
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i just removed the canister from my 911sc since the hoses were shot and the removable end just about removed itself. probrobly empty by now im going to open it up and see. But im thinking is the canister there just for when the car is turned off and the fumes have a place to collect? because when its running it suckes the fumes in anyway and it doesnt get to the atmosphere. So by that theory i can bypass the canister and still plumb the lines to the intake and the fumes will just pool in the intake instead. potentially causing a big backfire when started perhaps. so would i be better off venting it to the atmosphere or leaving it plumbed to the intake. Im not real woried about smelling fumes but id rather not blow my airbox.
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Harpo
post Apr 13 2014, 05:59 PM
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Before I saw your post I was thinking the same thing. However you bring up a good point.

David
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Pat Garvey
post Apr 17 2014, 06:20 PM
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QUOTE(1970 Neun vierzehn @ Jan 17 2014, 03:22 PM) *

QUOTE(Pat Garvey @ Jan 16 2014, 06:01 PM) *

QUOTE(jrrhdmust @ Jan 10 2014, 01:13 PM) *

so can someone tell me where to pick up new charcoal for the system?
Thanks

Me too!


I don't think you need the charcoal Pat, since your car hasn't run in, what, 15 years? But if you really would like some charcoal, maybe your local WaWa might have some. (IMG:style_emoticons/default/poke.gif)

I'd like to set the record straight here it's only been 10 years. Naberhaus, you are sooo negative. Relax, take lessons from me. It's not WHEN it runs, it's HOW it runs. Rome wasn't built in a day.
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mepstein
post Apr 17 2014, 06:59 PM
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I just bought some on amazon. $10 for a 3lb bag. Hopefully the canister can be serviced on a '71
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euro911
post Apr 17 2014, 07:52 PM
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So it appears that almost any pet supply store should carry it (IMG:style_emoticons/default/smile.gif)

Will a 3lb bag do the trick?
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mepstein
post Apr 18 2014, 03:45 AM
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QUOTE(euro911 @ Apr 17 2014, 09:52 PM) *

So it appears that almost any pet supply store should carry it (IMG:style_emoticons/default/smile.gif)

Will a 3lb bag do the trick?


Yes. Saigon did his and measured 1.7lbs in the canister.

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