Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: rear fuse panel

  1. #1
    Senior Member
    Join Date
    Jun 2011
    Location
    Bellingham, WA
    Posts
    170

    rear fuse panel

    I have a 72 911T. The sticker on the cover of the engine fuse cover is missing. from top to bottom, what is the fuse amperage and what does each fuse control. FWIW, I have the single stage rear defogger if that makes a difference

  2. #2
    member #1515
    Join Date
    Mar 2009
    Location
    San Antonio, Texas
    Posts
    3,967
    I don't believe there was a sticker, the fuse info is embedded on the inside of the cover if memory serves me right.
    David

    '73 S Targa #0830 2.7 MFI rebuilt to RS specs

  3. #3
    Senior Member NorthernThrux's Avatar
    Join Date
    Jun 2012
    Location
    London, Ontario, Canada
    Posts
    2,224
    If mounted correctly, the engine fusebox should be in the order of position 3,2,1 from top to bottom.

    Position 3 should have a black/red wire and a red wire on either side. It is an 25 Amp fuse. The red (a thicker red wire than the same side one that goes to fuse position 1) comes from the starter motor and is always live. The red/black goes to rear window defogger relay.
    Position 2 should have a red/white on one side. The other side is bridged to position 1. It is an 8 amp fuse. The red/white goes to the cold start valve relay (for MFI) and the speed relay for the anti-backfire function for MFI.
    Position 1 should have a red wire coming to it and nothing leaving. This is a 5 amp fuse (if anything is actually installed) and is supplied by switched power from the ignition switch via the 10 fuse panel in the frunk. Not sure what accessory it is used for. I've usually seen no fuse in this position.

    Ravi
    Early 911S Registry # 2395
    1973 Porsche 911S in ivory white 5sp MT
    2015 Porsche Macan S in agate grey 7sp PDK

  4. #4
    Senior Member
    Join Date
    Jun 2003
    Location
    Toronto
    Posts
    362
    Position 1 is for the Sportomatic switch, terminated with a blue/yellow wire on 70/71’s.

  5. #5
    Quote Originally Posted by 72t4tom View Post
    I have a 72 911T. The sticker on the cover of the engine fuse cover is missing. from top to bottom, what is the fuse amperage and what does each fuse control. FWIW, I have the single stage rear defogger if that makes a difference
    Here it is
    Attached Images Attached Images  
    Clyde Boyer



    1972 2.5ST Coupe LHD Replica 5 speed.
    1972 2.4T/E Coupe LHD US 5 speed 69,000 miles from new
    1973 2.4E Coupe RHD Aussie 5 speed
    2007 C4S Coupe RHD Aussie 6 speed.






    Early S Registry Member #294
    First Aussie R Gruppe Member #366
    TYP 901 Register Inc #6

  6. #6
    Senior Member NorthernThrux's Avatar
    Join Date
    Jun 2012
    Location
    London, Ontario, Canada
    Posts
    2,224
    Actually, I don't believe there was a cover for the engine fuses in 72/73. The big plastic cover with the two knurled knobs over the whole rear console was all that was provided. I think I asked about this once in my build thread.

    Ravi
    Early 911S Registry # 2395
    1973 Porsche 911S in ivory white 5sp MT
    2015 Porsche Macan S in agate grey 7sp PDK

  7. #7
    Yes and that was stuck on the inside of the plastic cover but suspect it didn't stay there for long as only ever seen one original which is what my copy was made from
    Clyde Boyer



    1972 2.5ST Coupe LHD Replica 5 speed.
    1972 2.4T/E Coupe LHD US 5 speed 69,000 miles from new
    1973 2.4E Coupe RHD Aussie 5 speed
    2007 C4S Coupe RHD Aussie 6 speed.






    Early S Registry Member #294
    First Aussie R Gruppe Member #366
    TYP 901 Register Inc #6

  8. #8
    Senior Member NZVW's Avatar
    Join Date
    Feb 2017
    Location
    Auckland NZ
    Posts
    1,658
    Clyde,

    I wonder how many of us have run off to check
    Mark

  9. #9
    Plenty I suspect but unlikely that anyone has found one intact!!!
    Clyde Boyer



    1972 2.5ST Coupe LHD Replica 5 speed.
    1972 2.4T/E Coupe LHD US 5 speed 69,000 miles from new
    1973 2.4E Coupe RHD Aussie 5 speed
    2007 C4S Coupe RHD Aussie 6 speed.






    Early S Registry Member #294
    First Aussie R Gruppe Member #366
    TYP 901 Register Inc #6

  10. #10
    Quote Originally Posted by NorthernThrux View Post
    Actually, I don't believe there was a cover for the engine fuses in 72/73. The big plastic cover with the two knurled knobs over the whole rear console was all that was provided. I think I asked about this once in my build thread.

    Ravi
    When was your S built Ravi?
    Clyde Boyer



    1972 2.5ST Coupe LHD Replica 5 speed.
    1972 2.4T/E Coupe LHD US 5 speed 69,000 miles from new
    1973 2.4E Coupe RHD Aussie 5 speed
    2007 C4S Coupe RHD Aussie 6 speed.






    Early S Registry Member #294
    First Aussie R Gruppe Member #366
    TYP 901 Register Inc #6

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Message Board Disclaimer and Terms of Use
This is a public forum. Messages posted here can be viewed by the public. The Early 911S Registry is not responsible for messages posted in its online forums, and any message will express the views of the author and not the Early 911S Registry. Use of online forums shall constitute the agreement of the user not to post anything of religious or political content, false and defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, or otherwise to violate the law and the further agreement of the user to be solely responsible for and hold the Early 911S Registry harmless in the event of any claim based on their message. Any viewer who finds a message objectionable should contact us immediately by email. The Early 911S Registry has the ability to remove objectionable messages and we will make every effort to do so, within a reasonable time frame, if we determine that removal is necessary.