Charcoal canister, do all 914s have them? |
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Charcoal canister, do all 914s have them? |
malcolm2 |
Jan 8 2012, 09:48 PM
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#1
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I decided to spruce up my fan housing during my rebuild. I noticed what looked like a copper tube sticking out of the side. Well I guess it used to stick out. But someone cut it off nice and flush. It deformed a bit and half way closed up the approx 3/8" dia hole. I did some research and found that that pipe would lead to the charcoal canister. Well mine did not come with a charcoal canister. There is no evidence that one was ever mounted either.
'75 1.8 liter with L-jet injection. Engine was dead when I bought it, so I have never seen it run. Hence the question, did they all have the canister? Thanks, Clark |
Mike Bellis |
Jan 8 2012, 11:11 PM
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#2
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None |
Yours did...
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Strudelwagon |
Jan 8 2012, 11:25 PM
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#3
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Member Group: Members Posts: 411 Joined: 11-October 08 From: interior, British Columbia Member No.: 9,633 Region Association: Canada |
Ya, Yours probably had one long ago. It was likely mounted in the engine bay like these ones (2.0 pictured)
Here Or Maybe here? |
charliew |
Jan 9 2012, 01:21 AM
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#4
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
Bugs had them I know in 72 and my 75 has one. Thats how they trapped the tank fumes and it purged the tank after the motor warmed up. The vaccum hose went to a heat operated valve that open when the motor warmed up. On the 72 bug the valve was on the aircleaner. I don't know where it is on the 75. I hadn't thought about it before.
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flipb |
Jan 9 2012, 07:55 AM
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#5
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Senior Member Group: Members Posts: 1,728 Joined: 2-September 09 From: Fairfax, VA Member No.: 10,752 Region Association: MidAtlantic Region |
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My '74 2.0 (survivor, not restored) produces fairly strong fuel odors. I've replaced the fuel lines (rubber) and added Mikey914's new rubber seal under the gas cap. Would it reduce the odors if I emptied the charcoal canister and refilled it? What would I fill it with? (where do I get the right kind of activated charcoal?) |
EdwardBlume |
Jan 9 2012, 08:00 AM
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#6
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California |
I got most of my gas smell off the top gasket on the fuel tank which you replaced.
You just don't hear about replacing the charcoal canister which leads me to think it doesn't go away too fast. I would think persistent gas fumes would be tank still, residual, or a vacuum link leak... |
JeffBowlsby |
Jan 9 2012, 11:43 AM
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#7
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914 Wiring Harnesses Group: Members Posts: 8,533 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
The activated charcoal was designed to be replaced after 50K miles or so. The later plastic canisters are easily opened up and activated charcoal pellets can be had online...maybe aquarium stores if you need it locally.
The charcoal just absorbs fuel odors. Attached image(s) |
Dave_Darling |
Jan 9 2012, 11:47 AM
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#8
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
AFAIK, all US-spec 914s were supposed to have the charcoal canister setup.
I did get a phone call at work (my NASA job!!) many years back from a guy who had a 1970 (?) that did not. The documentation for the car said it had it, but there was no evidence of the lines ever being there. Our conclusion was that it may have originally been intended as a body shell for a non-US car but was changed over at some point during production. Either that, or Klaus and Franz at the factory had one too many beers at lunch that day and forgot to put the parts in. --DD |
malcolm2 |
Jan 9 2012, 01:55 PM
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#9
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
did they all have the canister? With some help from Jeff, I add more to answering my question... http://bowlsby.net/914/Classic/Emissions.htm So now I need to find one, and also make sure I have parts for all the hoses that enter and exit the canister. Thanks to all, Clark |
jim_hoyland |
Jan 9 2012, 05:12 PM
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#10
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Get that VIN ? Group: Members Posts: 9,319 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
My '75 1.8 L-Jet originally had the charcoal canister mounted to the battery hold down bolt. Some later models had the canister mounted to the rear of the engine bay. The rear mounted cars have a permanent stud dot the mounting.
Early cars have a special bracket for mounting over the gas tank. When you look at the brackets, the difference is apparent. The charcoal canisters are easily obtained, post a WTB in the classifieds. |
zonedoubt |
Jan 9 2012, 06:52 PM
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#11
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Canadian Member Group: Members Posts: 668 Joined: 14-May 03 From: Vancouver, BC Member No.: 696 Region Association: Canada |
activated charcoal pellets can be had online...maybe aquarium stores if you need it locally. If you refill it, don't use the aquarium stuff since it's for removing impurities from water. You want something for vapours, try your local hydroponics shop. (IMG:style_emoticons/default/smoke.gif) |
maxwelj |
Jan 10 2012, 11:09 AM
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#12
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rebuilt member Group: Benefactors Posts: 278 Joined: 8-January 04 From: Owasso, OK Member No.: 1,532 Region Association: None |
my 70 -6 did not ever have one. Can't speak for the 4s
Jack |
914Mels |
Jan 11 2012, 03:50 PM
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#13
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Member Group: Members Posts: 357 Joined: 20-June 11 From: Santee Member No.: 13,221 Region Association: Southern California |
The evaporative system with canister was a California requirement in 1970. It wasn't till 1971 that it was required in all 50 states. I don't know if Porsche put the equipment on all it's '70 cars or not.
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sixerdon |
Jan 11 2012, 10:05 PM
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#14
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Member Group: Members Posts: 466 Joined: 23-May 03 From: Dartmouth, MA Member No.: 731 |
The question, "did they all have a canister?" The answer is, no.......not all. The majority of /6's did not have them. Only those built for the CA market. The rest of the 49 states and world did not have them. Also, I believe the /4's sold though out the rest of world (ROW) also did not have them.
Read more here; http://www.914world.com/bbs2/index.php?sho...08524&st=20 There is at least one early MY '70 that did not have a canister......maybe more. Don |
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