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Technical Mopar Tight fit

Discussion in 'Traditional Hot Rods' started by rocknrolldaddy, May 9, 2017.

  1. metalman
    Joined: Dec 30, 2006
    Posts: 3,297

    metalman
    Member

    Yeah, what a stupid design. Never put one together but took one apart with a stuck motor. Had to pull the crank with the torque converter still attached, pia!
     
    Atwater Mike likes this.
  2. Been there done that.
    That was 7 MFer job. PITA.
     
  3. What does this torque converter look like?

    What does the FSM say the process is?
     
  4. Just to add a bit more to the discussion regarding the install of these nuts I went & checked my 57-58 Plymouth Service Manual and the 1957-62 Oz Chrysler Royal Service Manuals...........
    The Plymouth book covers manual, overdrive, Powerflite(2 speed) and Torqueflite trans and has this to say....."Install torque converter on crankshaft. Install eight torque converter nuts and lockwashers. Draw down evenly and tighten to 55 to 60 foot pounds" .................
    The Oz Chrysler Royal Book has this to say........ "Position torque converter unit on crankshaft flange. Using wrench C-589, tighten stud nuts to 55ft.lbs torque." ...........there is a small picture showing the use of tool C 589 which from the poor pic shows a 12-15" long open mouth spanner which may or may not have a special end but is impossible to see clearly ................
    And neither book shows or describes any particular way to actually install the mongrel nuts on the threads...........once this is achieved everything else would be a walk in the park.............lol............AndersF is correct in that removing the oil pan would make the job easier................anyway hope this helps Daddy...............andydd
     
  5. 31 Vicki.......these are a normal looking converter more or less, but without a flexplate, the ring gear is a press fit then staked or welded to the converter flange.........the 8 studs protrude from the centre.............my experience with them has only been with the Oz Chrysler Royals & Dodge Phoenix which used these trans 1957 to 1962 and were US made, imported into Oz, they are the same as that used in US Mopars.............the Oz shop manuals use the same pics and text that the US Plymouth manuals use..............andyd
     
  6. What's the thread pitch ?

    The rounded top will let the wrench sneak on and off, the flange won't let it pass thru and the small OD of the flange wont interfere with much.

    image.png
     
    juan motime likes this.
  7. What stops this system from being used on earlier than 62?

    The application info is 1962 and newer
    image.jpeg
    image.jpeg
     
  8. So if you lost a stud to fouled threads the converter is scrapped?
     
  9. Dunno how you could loose a thread you'd have to be rather hamfisted, I suppose you could run with just 7 nuts, I wouldn't think it would make that much difference tho'........even with the converter balance..................lol........BTW, the thread is either 3/8th or 7/16th UNF, can't remember which and ain't got a spare converter to check on at present..........lol.......... as for using the flexplate style of attachment.........the up to 1962 uses 8 studs........the flexplate uses 6 bolts................the early crank flange is also longer or shorter, can't remember which.....this is the same arrangement that the early Hemis use and is why there is a market for adaptors from various companies to use the later all alloy 727 Torqueflite and other trans which use the flexplate................andyd.
     
  10. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 13,415

    Johnny Gee
    Member
    from Downey, Ca

    Typed in Chrysler C589 wrench and found nothing factory. But there was one item that did show up and it looks interesting. Here's a link to what it is (scroll down to find when opened) > http://www.samstagsales.com/stahlwille.htm and here's what it looks like. [​IMG]
     
  11. I could see cross threading a nut on there installing it this way. Then not being able to get it off. I can see it clearly.


    The 8 bolt flex plates are available for early hemi / same a 426. That poly should be the same bolt pattern no?
     
  12. 24riverview
    Joined: Jan 13, 2008
    Posts: 1,075

    24riverview
    Member

    Maybe one of these would work? Adjustable from 0 to 1". Sorry can't tell you where to purchase, I bought some at a swap meet a few years back for around $5 for 2. I keep one in a couple of my different tool boxes, very handy when I remember I have it. Around 10" overall length.
    IMG_2688.JPG IMG_2689.JPG IMG_2690.JPG IMG_2691.JPG
     
  13. Mr48chev
    Joined: Dec 28, 2007
    Posts: 34,822

    Mr48chev
    ALLIANCE MEMBER

    A bit of searching brings up this wrench on Ebay.
    182534138328
     
  14. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 13,415

    Johnny Gee
    Member
    from Downey, Ca

    A modified Snap-On wrench
     
  15. Big Swede
    Joined: Sep 21, 2015
    Posts: 48

    Big Swede
    Member

    The Poly's I've seen are 6 bolt. My poly has 6 'normal' flex plate bolt holes in it unlike this one with a flange. My crank will be replaced with an 8 bolt unit designed for an LA small block.


    Sent from my iPhone using The H.A.M.B. mobile app
     
  16. I've used a dab of JB weld to hold a nut to a wrench before. Try that on a ratcheting box wrench.
     
  17. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,289

    sunbeam
    Member

    Take an old box end wrench and weld a couple of spots on one side of box end so the nut can't slip through.
     
  18. bonzo-1
    Joined: Oct 13, 2010
    Posts: 342

    bonzo-1
    Member

    Push the flywheel back so only two of the threads protrude. That should get you some more room. Tape on the backside of a flattened box end with the nut captured if you still cannot get your fingers in there.
     
  19. Fitty Toomuch
    Joined: Jun 29, 2010
    Posts: 344

    Fitty Toomuch
    Member
    from WVa

    My goodness, don`t you guys have ratchet wrenches that capture the nut? I do, they`re out there:rolleyes:
     
  20. Thats cool could make one of them.
     
  21. rocknrolldaddy
    Joined: Aug 24, 2006
    Posts: 336

    rocknrolldaddy
    Member

    Finally got one in. But not before I went looking for a 7/16 20 thread flange nut. Apparently, they're such an oddball, they looked through 6 catalogs with no luck. I took a little from a few of your replies. As for the rachet wrench, the top of the wrench does not allow for the nut to line up. The oil pan is right above an exhaust pipe. The long screwdriver didn't have the correct angle.
    So, I put one, 3/16×3/16 piece of gorrila tape on the inside of the long, open end wrench, on one side. Then, I used piece of scrap, 3/16 rod, with a slight bend at the end to keep the nut in place, while I turned the wrench. It took about a minute to get the first one in. In conclusion, the tape held the nut snug in the wrench. The rod kept the nut from sliding out of the wrench.

    It is a stupid design. But at least, "WE", all figured it out. Thanks for your input.

    Art
     
    Big Swede and 302GMC like this.
  22. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,115

    302GMC
    Member
    from Idaho

    We knew you'd get it ....
     
  23. gene-koning
    Joined: Oct 28, 2016
    Posts: 4,556

    gene-koning
    Member

    Just think, now you have the experience. You can help someone else deal with this problem in the future. Gene
     
    31Vicky with a hemi likes this.
  24. Swede.........my understanding is that all cast iron Torqueflites use the converter with studs..........once mopar went to the alloy Torqueflites in 1962 that's when they changed to converter attachment and went to the flexplate idea so the 318 Polysafter 1962 to 1967 used the alloy box and are what you have seen...........and yep, using the LA crank gets you the later 6 bolt style with a flexplate..........good to see lots of helpful tips, hints, ideas and tool suggestions........and you've had a win Daddy..............lol...........andyd
     
    Big Swede likes this.
  25. Unplucked
    Joined: Sep 7, 2017
    Posts: 6

    Unplucked

    I bring this thread back because, well... now it involves me! I went through the removal of those eight nuts to pull the 413 on my '61 Chrysler (the last year for this abomination). I now have the short block back from the shop. Seems it would be least maddening to install the torque converter while the block is on the hoist before the oil pan goes on. My question is whether there are going to be clearance problems installing the engine/converter combination with the trans sitting in its installed position in the car. The alternative is to reverse my disassembly procedure leaving the converter on the tranny while I drop the block into place and facing those eight soul crushing nuts from underneath the car. If any of you have insight on installing the block/converter as an assembly , I would appreciate it.
     
  26. The chances of you getting the torque converter property seated into the Trans with it bolted to the engine is pretty damn slim. There's plenty of advice info and ideas in this thread. A piece of tape and a bent rod worked for the original poster. There's a few dozen more that weren't even tried. It's not easy but it's not impossible.
     
  27. Fabber McGee
    Joined: Nov 22, 2013
    Posts: 1,337

    Fabber McGee
    Member

    I may have an effective solution. Probably 15 years ago my dad came walking into my shop with a set of long needle nose pliers he got for me at Costco. Pretty handy tools in some places, but there was a goofy looking pair in there with hooked jaws that we sort of giggled about for a minute then promptly forgot. They worked their way to the bottom of the pliers drawer and were not heard from again for years. 3 or 4 years ago I was trying to figure a good way to hold nuts way inside a piece of box tube and somehow those pliers came to mind. They worked great and have been used many, many times since for nuts or bolts in tight places. They are becoming a go to tool. Might be hard to find a set, but easy enough to modify a straight pair for the job. Also good for installing and pulling small hoses you can't reach easily.
    20171201_141258-800x450.jpg 20171201_141341-800x450.jpg
     
    Hombre and Los_Control like this.
  28. Sheep Dip
    Joined: Dec 29, 2010
    Posts: 1,572

    Sheep Dip
    Member
    from Central Ca

    Harbor Freight has em.
     
    Hombre and Fabber McGee like this.
  29. Fabber McGee
    Joined: Nov 22, 2013
    Posts: 1,337

    Fabber McGee
    Member

    Yep, here they are. Goofy looking handles, but the business end is right.
    Pittsburgh® - item#37909
    [​IMG]
     
    Last edited: Dec 2, 2017

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