1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

80-86 ignition switch breakage problem

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Knuckledragger, Nov 29, 2020.

  1. Knuckledragger

    Knuckledragger blowing chunks

    Posts:
    2,264
    Likes Received:
    154
    Joined:
    Nov 7, 2008
    Location:
    Pasadena, CA
    My tumbler has broken twice in the last two years. Yes, the design has a little to do with it, but the starter momentary switch position has become very difficult to turn to and I was wondering of anyone else has had this problem? The parts are pretty cheap to replace, so I imagine that it is not uncommon.

    The little pin on the end of the tumbler is what breaks off. I can actuate the rod going down the column by hand for every position except to start it. I have a new switch, which I guess is the problem, but am not entirely confident. I have replaced this switch long ago in another 85, but it did not have a tilt wheel option like I do now, and I wonder if that may have any affect in causing my current woes.

    Any insight is welcome. I am at my second house with limited tools (limited only in that I don't have a lot here, there are hardware and auto stores to buy what I need) and working on a gravel driveway. Many would say, "so what?" but I like to work on the truck on my own terms, not 400 miles from home, especially if I need to tear something (steering column) way apart.
     
  2. The_Josh_Bear

    The_Josh_Bear Full Access Member

    Posts:
    1,050
    Likes Received:
    646
    Joined:
    Jun 1, 2016
    Location:
    Western WA
    Knuckledragger likes this.
  3. IDIBRONCO

    IDIBRONCO IDIBRONCO

    Posts:
    7,271
    Likes Received:
    5,481
    Joined:
    Feb 5, 2010
    Location:
    edmond, ks
    Since the key switch works everything but the start function, you could put a starter push button in your truck. M The switches in both my Red and Blue trucks do the same thing. They also both have a push button for the start. It would also be cheaper, easier to do, and it would require fewer tools. I'm going to do the same for my Ex Wife truck and won't even think about going back to a key start.
     
    riphip likes this.
  4. Knuckledragger

    Knuckledragger blowing chunks

    Posts:
    2,264
    Likes Received:
    154
    Joined:
    Nov 7, 2008
    Location:
    Pasadena, CA
    I might try that if the new parts create havoc. I put in heavy grease once, thinking it would help, but maybe not. This time I wiped out all the grease I could find and thinned it with WD40. Will put some thin oil in there later on. Seems to be working with less effort now, anyway.
     
  5. The_Josh_Bear

    The_Josh_Bear Full Access Member

    Posts:
    1,050
    Likes Received:
    646
    Joined:
    Jun 1, 2016
    Location:
    Western WA
    I used wheel bearing grease once too, and it was not only harder to actuate but when then cold came it ended up being impossible. Thats the linkage I broke.
     

Share This Page