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

Thread: 901 transmission shift

  1. #1

    901 transmission shift

    Was driving and everything working great. Stopped for gas and suddenly I had only had gears: 1, 2, 3, and R. Shift pattern went wide, like 4th became second, and 5th became third. I limped it home in third at around 50mph. Is this some weird linkage pop or something. Anyone have something like this occur?

  2. #2
    Senior Member Scott A's Avatar
    Join Date
    May 2014
    Location
    South East USA
    Posts
    1,017
    It does seem like your shift coupler, has just slipped over a few teeth. It is not always the best clamp. Could be an easy fix. (under the metal plate, on the floor, near the back seats)

    Current long term ownership: 63 Cab, 71 911, 74 914

  3. #3
    Awesome, thanks. So it’s internal and located under that metal plate inside. Is the coupler a ring or a link or bracket? I never poked around in there myself.

  4. #4
    Member #226 R Gruppe Life Member #147
    Join Date
    Feb 2009
    Location
    Portland, Oregon
    Posts
    2,457
    Check shift rod and ball cup bushings under shifter.

  5. #5
    Senior Member Scott A's Avatar
    Join Date
    May 2014
    Location
    South East USA
    Posts
    1,017
    Quote Originally Posted by NV Stig View Post
    Awesome, thanks. So it’s internal and located under that metal plate inside. Is the coupler a ring or a link or bracket? I never poked around in there myself.
    Yes, under that metal plate, It is most likely just the clamp, I think it is two 13mm wrenches.
    It will take a few tries, to get it just right.
    Last edited by Scott A; 07-07-2018 at 10:13 AM.

    Current long term ownership: 63 Cab, 71 911, 74 914

  6. #6

  7. #7
    Thank you guys. I wiggled on a couple things, and realized I’m out of my depth. Local mechanic can’t look at it until August 20th, May not make car week this year with it. Looks like I’m cruising in the P Rex this year- 928, please don’t think less of me.

  8. #8
    Member #226 R Gruppe Life Member #147
    Join Date
    Feb 2009
    Location
    Portland, Oregon
    Posts
    2,457
    Stig, I'm going to ask again, have you checked shift rod bushings under the shifter. The shift rod adjustment under rear cover doesn't just loosen. Such a sudden loss of shifting, sounds like bushing to me.

  9. #9
    Senior Member Bill Simmeth's Avatar
    Join Date
    Apr 2008
    Location
    Virginia's Blue Ridge
    Posts
    1,683
    I had similar symptoms in my 70E. The forward tip of the shift rod which the ball cup receiver screws on to is fastened to the main rod with two spot welds. Those welds had failed on my car. There was enough friction when going fore/aft and pulling toward driver to get R-1-2-3 (tho sloppy), but the shifter would just wallow to the right making 4-5 impossible. Required engine/trans drop to replace the shift rod.

    Hopefully yours is just bushings....

  10. #10
    Senior Member ejboyd5's Avatar
    Join Date
    Dec 2010
    Location
    Southold, NY
    Posts
    845
    Quote Originally Posted by gled49 View Post
    Check shift rod and ball cup bushings under shifter.
    +1
    Don't look for zebras when you hear hoofbeats. Although there may be many exotic failure points contributing to your shifting problem, let's rule out the simple and most likely ones first. Peel back some carpet and unbolt the shift assembly from the floor. The end of the vertical gear shift lever (6) fits into a socket (22) that is attached to a horizontal shifting rod (21) that goes to the rear of the car. Inside this socket is a plastic cup (12) that makes for smooth movement of the parts. There's a good chance that instead of finding an intact cup you will only have a bunch of plastic pieces stuck together with old grease. Clean out the socket, install a new cup, reinsert the lever, bolt the assembly to the floor and you should be good to go. This is one of the simplest (and cheapest) repairs you'll ever make to a Porsche. If for some reason this replacement doesn't correct the malfunction, recontact us and we'll lead you through proper adjustment of the shift coupler (24).
    Attached Images Attached Images  
    Last edited by ejboyd5; 07-14-2018 at 08:46 AM. Reason: Illustration Added

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.