Results 1 to 2 of 2

Thread: Missing Intake Valve Retaining nut

  1. #1

    Exclamation Missing Intake Valve Retaining nut

    The number 6 Intake valve is missing its retaining nut. My concern is where could it have gone? Could it fall into the oil pan and be sucked up? Could it be poised to jam a valve, score the cam, or something else? Should I pull the engine and find it or can I safely replace it comfortable that the nut is floating harmlessly somewhere without endangering anything? I think I know why it is missing. I recently adjusted the valves and the engine did not run well afterwards. I am re-adjusting the valves when I discovered the missing nut. My guess is that I did not tighten it properly and it backed off. Certainly accounts for the poor running since number 6 was not opening at all!
    1970 911S Targa

  2. #2
    Senior Member
    Join Date
    Oct 2002
    Suffolk, VA
    That could be a real mess. At least it is the intake side... if it were the exhaust side, the nut might have gone down one of the oil return tubes. I forget how large the oil return orifices are inside the intake valve cover. Good Luck.
    1970 911S Coupe (Burgundrot) (sold)
    1967 911 Coupe (Light Ivory) (mostly gone)
    1966 911 Coupe (Sand Beige) (sold)
    Van Diemen RF99 Formula Continental
    Citation F1000 on the way
    Van Diemen Hayabusa SCCA Formula S (sale pending)
    Other Early 911/912/914

Similar Threads

  1. 1 NOS 46mm sodium intake valve FS
    By 66S in forum For Sale: 911 Parts
    Replies: 0
    Last Post: 05-08-2011, 06:20 PM
  2. FS: NOS TRW Intake Valve 2.2 2.4 2.7L
    By jhora in forum For Sale: 911 Parts
    Replies: 1
    Last Post: 08-16-2007, 08:05 AM
  3. Intake Mag. Valve Covers For Sale
    By jcarpio in forum For Sale: 911 Parts
    Replies: 3
    Last Post: 02-03-2007, 04:12 PM
  4. 69 911S 911R 906 NOS OEM Intake Valve Set
    By WM711 in forum For Sale: 911 Parts
    Replies: 2
    Last Post: 11-21-2006, 02:16 PM
  5. WTB: Turbo Intake Valve Cover
    By dhopkins in forum For Sale: 911 Parts
    Replies: 1
    Last Post: 10-09-2005, 04:00 PM

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.