Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 4 of 4

Thread: Hydraulic rocker stud puller

  1. #1
    Supporting Member
    Join Date
    Sep 2013
    Posts
    17
    Thanks
    3
    Thanked 59 Times in 13 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    athomp's Tools

    Hydraulic rocker stud puller

    Problem: Pulling pressed-in rocker studs from cylinder heads. The usual way to do it is put a spacer block over the stud and tighten a nut down on it until the stud pulls out. But if a stud needs to be replaced it's because the threads are stripped or it's broken off and there are no threads so the usually way doesn't work. To solve this problem I made a hydraulic stud puller utilizing a Porta-Power Pull-back Ram. Now I just need to put a nut on the stud and pull. If the stud is stripped or broken I just weld a nut on it.
    Hydraulic rocker stud puller-image.jpeg
    Hydraulic rocker stud puller-image.jpeg
    Hydraulic rocker stud puller-image.jpeg
    Hydraulic rocker stud puller-image.jpeg
    Hydraulic rocker stud puller-image.jpeg
    Hydraulic rocker stud puller-image.jpeg
    Last edited by athomp; 02-16-2019 at 03:00 PM.

  2. The Following 4 Users Say Thank You to athomp For This Useful Post:

    123pugsy (02-17-2019), nashty1 (02-18-2019), Scotty1 (02-18-2019), that_other_guy (02-20-2019)

  3. #2
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,089
    Thanks
    570
    Thanked 1,367 Times in 1,233 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)


    Thanks athomp! We've added your Rocker Stud Puller to our Engine category,
    as well as to your builder page: athomp's Homemade Tools. Your receipt:




  4. #3
    Supporting Member
    Join Date
    Aug 2018
    Posts
    40
    Thanks
    424
    Thanked 9 Times in 8 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Great tool idea!

    Two questions:

    1) how do you know if the stud are threaded or press fit (to chose the right tool for the job)?

    2) how does this tool grab the nut?

    Thanks!
    Brian

  5. #4
    Supporting Member
    Join Date
    Sep 2013
    Posts
    17
    Thanks
    3
    Thanked 59 Times in 13 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    athomp's Tools
    Quote Originally Posted by that_other_guy View Post
    Great tool idea!

    Two questions:

    1) how do you know if the stud are threaded or press fit (to chose the right tool for the job)?

    2) how does this tool grab the nut?

    Thanks!
    Brian

    1. Two ways to do that: put Vise-Grips on and see if it turns. The other way I have found that is quicker is to hit them with a hammer - the press-in studs can be driven in a bit while the screw-in studs won't move (and they sound different when you hit them).
    2. The bottom of the part that attaches to the ram has a slot that is the size of the stud (smaller than the nut).


    Post your reply!
    Join 42,532 of us and get 500+ tool plans, tool eBooks, build guides, and much more.



    eBooks for Supporters

  6. The Following User Says Thank You to athomp For This Useful Post:

    that_other_guy (02-20-2019)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

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