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Thread: Fuel tank breather setup for 1969

  1. 06-29-2015, 05:46 AM #1
    endo911rs
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    Fuel tank breather setup for 1969

    I'm looking for the correct fuel tank venting setup for a 1969 911. Any photos or description would be a huge help.

    It sounds like the terminal vent house dumps out behind the drivers bumperette.

    Am I also correct that there is no charcoal canister in 1969?

    Does the brake fluid reservoir vent line connect into the fuel vent drain tube or does it exit the chassis separately and if so, where?

    This photo is from a 1971 911T I believe and is not correct for 1969 but might be of good reference for someone.
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    '67 911S
    '69 911S
    '70 911ST
    '73 911T Targa Signal Yellow
    '78 911SC backdate EFI 3.4 turbo
    '11 Spyder
    Early S#1097, R-gruppe #
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  2. 06-29-2015, 05:55 AM #2
    beh911
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    Quote Originally Posted by endo911rs View Post
    I'm looking for the correct fuel tank venting setup for a 1969 911. Any photos or description would be a huge help.

    It sounds like the terminal vent house dumps out behind the drivers bumperette.

    Correct.

    Am I also correct that there is no charcoal canister in 1969?

    Correct

    Does the brake fluid reservoir vent line connect into the fuel vent drain tube or does it exit the chassis separately and if so, where?

    Yes it connects to the vent drain tube at the plastic "y" connector shown above in your picture.

    This photo is from a 1971 911T I believe and is not correct for 1969 but might be of good reference for someone.
    For 69, the system is very simple. One line from the tank to the vent box under the cowl, a second line from the vent box to the "y" connector, and then a continuation of the vent line to behind the washer pump/reservoir overboard
    1969 S Coupe #761
    Early S Registry #1624
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  3. 06-29-2015, 06:58 AM #3
    endo911rs
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    Where does the small end of the "Y" go? It looks like it points up towards the brake reservoir...
    '67 911S
    '69 911S
    '70 911ST
    '73 911T Targa Signal Yellow
    '78 911SC backdate EFI 3.4 turbo
    '11 Spyder
    Early S#1097, R-gruppe #
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  4. 06-29-2015, 07:35 AM #4
    beh911
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    Small end of the Y takes the brake reservoir overflow line.

    Another thread:

    http://www.early911sregistry.org/for...ilation-System
    1969 S Coupe #761
    Early S Registry #1624
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  5. 06-29-2015, 09:23 PM #5
    endo911rs
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    Great, that makes it easy! I'll post a photo when I get it completed.
    '67 911S
    '69 911S
    '70 911ST
    '73 911T Targa Signal Yellow
    '78 911SC backdate EFI 3.4 turbo
    '11 Spyder
    Early S#1097, R-gruppe #
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  6. 06-30-2015, 06:11 PM #6
    rdelmendo
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    Not sure if this is 100% correct, but this is how my '69 turned out after cleaning up and replacing the tubing.
    Name: image.jpg Views: 392 Size: 66.5 KB
    My tubing only had one of the "Y" connectors as shown in your first post. Beh's post shows the rest.
    Cheers,

    Ron

    1961 356 Roadster Outlaw
    1969 911E ROW Coupe ‘Orangina’
    1968 911 SWT Burgundy Red project
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  7. 07-02-2015, 02:59 PM #7
    rdelmendo
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    This is what came out of my '69.
    Name: image.jpg Views: 300 Size: 103.1 KB
    Cheers,

    Ron

    1961 356 Roadster Outlaw
    1969 911E ROW Coupe ‘Orangina’
    1968 911 SWT Burgundy Red project
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  8. 07-11-2015, 05:56 PM #8
    Richy
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    Screws for the filler neck hose clamps should face the trunk compartment .
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  9. 07-11-2015, 06:04 PM #9
    endo911rs
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    I was just installing those! should the screw be on the top or bottom?
    '67 911S
    '69 911S
    '70 911ST
    '73 911T Targa Signal Yellow
    '78 911SC backdate EFI 3.4 turbo
    '11 Spyder
    Early S#1097, R-gruppe #
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  10. 07-12-2015, 03:46 PM #10
    Richy
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    The screws are oriented correctly - slots facing up , but the clamps should be pivoted on their axis so the screw body is on the trunk compartment side of the hose .
    I think Porsche did not want the screws interfering with the hoses and wiring , and it's easier .
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