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914World.com _ 914World Garage _ Can this charcoal filter be refilled?

Posted by: advman89 Apr 26 2021, 02:09 PM

Before I go destroying something...I watched Ian's video on refilling and this one doesn't appear to want pry open...

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Posted by: bdstone914 Apr 26 2021, 03:30 PM

Not easily. The later plastic type have an end cap that snaps on.

Posted by: advman89 Apr 26 2021, 03:46 PM

yeah...there is a spot weld on one side. grrrrrrr.

Posted by: type47fan Apr 26 2021, 04:47 PM

QUOTE(advman89 @ Apr 26 2021, 01:09 PM) *

Before I go destroying something...I watched Ian's video on refilling and this one doesn't appear to want pry open...

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Hi,

I've got an extra, clean re-fillable charcoal canister (113 201 813 B) that you can have for $25.00 +shipping.

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Link to a filling procedure:

http://www.914world.com/bbs2/index.php?showtopic=347951&st=40&p=2886468&#entry2886468

Thanks,

Wayne
type47fan

Posted by: 914sgofast2 Apr 26 2021, 06:14 PM

QUOTE(advman89 @ Apr 26 2021, 01:09 PM) *

Before I go destroying something...I watched Ian's video on refilling and this one doesn't appear to want pry open...

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You can't pry open the metal charcoal canisters.

But you can drill a 3/4" hole in one end; remove the old charcoal; and then re-fill it with new activated charcoal as used in fish aquariums. You then put a standard 3/4" plumbing pipe plug in the hole you drilled. There is a thread here somewhere, and maybe even a video on YouTube on how to do it by drilling a hole and refilling the charcoal canister with new charcoal. Might even be a thread in the Samba's VW 411/412 or Bug section on how to do it. All the early 1970's VW cars used the same or a similar metal body charcoal canister to what was used in our Porsche 914's before they all went to plastic canisters.

Posted by: bbrock Apr 26 2021, 08:56 PM

Don't do anything with it until you have read this!!!! http://www.914world.com/bbs2/index.php?s=&showtopic=307290&view=findpost&p=2807286

I tried the drill trick described on the Samba and darn near ruined my canister. I then figured out how to open it up, replace the charcoal, and reseal, but it is not an easy job. Read the link above and you will see why I think the Samba trick is a bad idea and how I was able to overcome it with a LOT of work. I'm not making a recommendation one way or another. I'm just sharing my experience.

Posted by: mepstein Apr 26 2021, 09:05 PM

I don't have the patience or skill of bbrock. I'm also lazy. I used a 1.5" hole saw to open a hole on the bottom, dumped out charcoal, refilled it and sealed it back up with a piece of duct tape. Once it's mounted on the gas tank, the duct tape isn't visible. !0-15 minutes.

Posted by: bbrock Apr 26 2021, 09:20 PM

QUOTE(mepstein @ Apr 26 2021, 08:05 PM) *

I don't have the patience or skill of bbrock. I'm also lazy. I used a 1.5" hole saw to open a hole on the bottom, dumped out charcoal, refilled it and sealed it back up with a piece of duct tape. Once it's mounted on the gas tank, the duct tape isn't visible. !0-15 minutes.


Curious how you dealt with the sandwich of spring loaded screens and filters. That was the only problem I had with the drill method, but it was a big one. I guess with a 1.5" hole, you could probably get the springs and sandwich re-positioned before refill?

Posted by: mepstein Apr 26 2021, 09:38 PM

QUOTE(bbrock @ Apr 26 2021, 11:20 PM) *

QUOTE(mepstein @ Apr 26 2021, 08:05 PM) *

I don't have the patience or skill of bbrock. I'm also lazy. I used a 1.5" hole saw to open a hole on the bottom, dumped out charcoal, refilled it and sealed it back up with a piece of duct tape. Once it's mounted on the gas tank, the duct tape isn't visible. !0-15 minutes.


Curious how you dealt with the sandwich of spring loaded screens and filters. That was the only problem I had with the drill method, but it was a big one. I guess with a 1.5" hole, you could probably get the springs and sandwich re-positioned before refill?

Yes. I don't remember the exact size of the hole saw but I was able to hold the internal pieces in place long enough to get it mostly filled and then packed some more in. I might have used something to wedge the parts in place. It was a while ago. I was thinking the next time I would use a hole saw the same size as the rubber disks that close off the holes in the front trunk.

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