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Technical HELP! 59A-B Knock Noise!

Discussion in 'Traditional Hot Rods' started by Piewagn, Jun 27, 2023.

  1. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    First thing I did was check the pushrod…
    Using an electric pump, so I cut 1/2” off the bottom of rod and set it back in place. It’s not contacting the cam. But I did check it to make sure that wasn’t the source…thanks for your input!
     
  2. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    See the little********!!:mad:
    There’s a larger image of it in the cylinder wall!
    0F2973AD-779D-45C0-8F02-4BBF520E2BF7.jpeg 523E3C91-E4AB-479E-9026-1F071EA7C45F.jpeg
     
  3. wandi harry
    Joined: Jul 19, 2008
    Posts: 346

    wandi harry
    Member

    Noisy little********!
    Bore ok?
     
    Outback likes this.
  4. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Yes...bore good! Thankfully...
    I'm guessin' it just stuck to the piston first hit because there were no other witness marks. One spot on the head and I pried it off the piston that had no other witness marks... Woo Hoo! Happy camper!
     
  5. Automotive Stud
    Joined: Sep 26, 2004
    Posts: 4,391

    Automotive Stud
    Member

    Damn, better than a rod knock. I always figured they made those screws out of brass for that reason. For future reference, skip trying to peen them over and use locktite.
     
    Bill Whitehurst likes this.
  6. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Yep! My new extended oversize throttle shafts came and first thing I did was check my supply of Loctite! :D
     
    winduptoy likes this.
  7. Petejoe
    Joined: Nov 27, 2002
    Posts: 12,599

    Petejoe
    Member
    from Zoar, Ohio

    Lucky man. Great news for you.
    It could have fell in place while traveling down the road and really caused some damage.
     
  8. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    I know! I shut it off after a decent ride, let it sit for a bit then restarted because I was checking for percolation issues with the Stromberg carbs I installed! I had eliminated my vapor and perc issues with the Holleys. It started right up and about 5-10 seconds in it started to hammer away. It’s astonishing how much noise that little screw fragment made! BUT, issue resolved! Thanks everyone for your input, it is greatly appreciated!!
     
    gary macdonald, winduptoy and Outback like this.
  9. alanp561
    Joined: Oct 1, 2017
    Posts: 5,516

    alanp561
    ALLIANCE MEMBER

    What? You don't have a brass magnet in your tool box?;) Glad you found it, now go wash your hands. ;)
     
    Outback likes this.
  10. corncobcoupe
    Joined: May 26, 2001
    Posts: 8,707

    corncobcoupe
    SUPER MODERATOR
    Staff Member

    Booger
    Lucky - now go buy a lottery ticket.
     
    Piewagn likes this.
  11. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,710

    theHIGHLANDER
    Member

    Since we're on the subject, the screws don't need a full peen over. 1 or 2****** punch hits at the edges. With all the new chemicals in modern gas I don't rely on Loctite in that spot. Another trick is to muller up the last couple threads by the top, the screw head. Enforce the "cross threads are tougher than Loctite" theory. Yes my beloved HAMB brethren, my opinion. This topic is like that colonoscopy or prostate exam you never want but have to get. Turned out OK but what a pain in the**** to get there:eek:
     
    gary macdonald, alanp561 and Piewagn like this.
  12. Primered Forever
    Joined: Jul 7, 2008
    Posts: 1,001

    Primered Forever
    Member
    from Joplin,MO

    That’s what I figured! I’m glad it wasn’t bad!
     
    Piewagn likes this.
  13. BJR
    Joined: Mar 11, 2005
    Posts: 11,234

    BJR
    Member

    In the top picture of the cylinder, what is that on the right side of the picture that looks like a grove in the piston and cylinder wall? Is it a reflection on the cylinder wall of the notch in the top of the piston?
     
    Piewagn likes this.
  14. Jeff34
    Joined: Jun 2, 2015
    Posts: 1,228

    Jeff34
    Member

    I saw that too. I think it’s a reflection of the notch in the piston. If you look at about 2 o’clock, you’ll see another reflection of a blemish on the top of the piston too.

    glad this turned out well!!!
     
    Piewagn likes this.
  15. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Lost my non-ferrous magnet ages ago…:D
     
    alanp561 likes this.
  16. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Yes…I consider myself extremely blessed in this situation! :p
     
    winduptoy likes this.
  17. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Yes! A definite pain in the*****! But, I did take care of a couple things I’ve been wanting to address. So I taking a positive approach, otherwise I could lose it! :confused:
    I think I’ll just do some minor taps on the new screws and shafts when I install this time…thanks for your input!
     
    winduptoy and theHIGHLANDER like this.
  18. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    I think I skated this time…:D
     
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  19. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Yes…reflection of screw and piston notch. Scared me because I thought I had catastrophic damage! All good though…
     
  20. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Thanks Jeff! That makes 2 of us!! :p
     
  21. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    New gasket, cylinder head torqued. I did adjust the valves. I’ve been wanting to since my valve train overhaul. Some were a little off but not too bad after a bunch of run time. Ready to install! Of course I created more work for myself because I forgot the oil pressure line and zinged it off at the fitting! :mad:
    Thanks everyone for your input!

    BFE4818D-99BC-4160-92C7-9932B83A2FA3.jpeg
     
  22. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    These are my guides…
    Makes doing this job alone way easier. Guides into trans, pressure rearward on engine, rotate crank and it pops right in!!

    53E03CEE-A502-4422-944E-79E610EFB045.jpeg
     
  23. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,338

    wheeltramp brian
    Member

    I think I'm going to steal your stud guide idea when I put my new motor in the 41
     
    Piewagn and theHIGHLANDER like this.
  24. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,710

    theHIGHLANDER
    Member

    I have a warm fuzzy feeling when fellow "rod nuts" catch a break. I watched your posts on IG, glad it didn't all fall like a house o cards.
     
    winduptoy, BJR and Piewagn like this.
  25. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Works like a charm! I don't need a second set of hands. I set trans height with floor jack and slide it in!
     
    winduptoy and BJR like this.
  26. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    The thoughts going through my head weren't good...I don't have the cash to redo a flattie. Some may find it strange, but this thing is mental therapy for me. Things tend to fade when I'm out on the road with it.
    Yeah...I had a slack stretch on IG for a while, but recently started uploading again. It's a convenient platform for quick stuff. I appreciate the follow Highlander! Thanks for hangin' out!
     
    theHIGHLANDER and winduptoy like this.
  27. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Friggin’ primary carb?? Nothing I even messed with since I acquired them! The remaining half is black and dirty, so it’s been broken for a while! Friggin’*****y trap!!
    8FB62E50-E2C8-4A52-B443-7843728D3C57.jpeg
     
    winduptoy, Outback and Petejoe like this.
  28. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Back together and running even better!!
    Thanks everyone for your input, greatly appreciated!! Time to drive the wheels off it!!
     
  29. corncobcoupe
    Joined: May 26, 2001
    Posts: 8,707

    corncobcoupe
    SUPER MODERATOR
    Staff Member

    Glad you caught that booger bit right away when you did.

    Sounds good.
     
    Piewagn likes this.
  30. Piewagn
    Joined: Mar 25, 2009
    Posts: 1,542

    Piewagn
    Member

    Thanks! I'm lucky it happened in the garage!!
     
    winduptoy, Outback and Jeff34 like this.

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