Torque Converter Bolts

Discussion in 'PSI Superchargers Tech Questions' started by TOL, Apr 7, 2020.

  1. TOL

    TOL Active Member

    Joined:
    May 18, 2005
    Messages:
    1,266
    Likes Received:
    15
    Let's say you have a Hemi with a converter drive, and a legal bell housing can around the converter and a motor plate.

    Where/How are people typically accessing the converter to flexplate bolts if the bolts have to go in from the backside of the flexplate and engage into the converter lugs???

    Staring at my stuff scratching my head.

    Thx.
     
    #1
  2. Nitro Madness

    Nitro Madness Super Comp

    Joined:
    Sep 14, 2003
    Messages:
    330
    Likes Received:
    8
    Maybe I'm missing something here with the rules....but when I ran a Lencodrive, I bored a 1.00" hole in the motor plate at 6:00 position as an access hole for a socket (lined up with the converter bolt circle).....pretty sure you are allowed several access (or cooling) holes in the motor plate....
     
    #2
    Templar Motorsports likes this.
  3. TOL

    TOL Active Member

    Joined:
    May 18, 2005
    Messages:
    1,266
    Likes Received:
    15

    I wondered about that, or whether I would have to make bolt-on block off plates when the job was done, so as to keep the rules people happy?......
     
    #3
  4. GregM784

    GregM784 Member

    Joined:
    Aug 24, 2008
    Messages:
    917
    Likes Received:
    13
    Not a hemi, but yes i have a 1" hole bored in my motor plate to get to the bolts. Paint stripes on your flex plate so you can see the bolt coming as someone rolls the engine.

    I find it easier to slow down for the bolt vs always backing up for it.
     
    #4
  5. rb0804

    rb0804 Active Member

    Joined:
    Aug 7, 2010
    Messages:
    591
    Likes Received:
    31
    You have an email.
     
    #5
  6. TOL

    TOL Active Member

    Joined:
    May 18, 2005
    Messages:
    1,266
    Likes Received:
    15

    Thx Rob, appreciate it........
     
    #6
  7. Nitro Madness

    Nitro Madness Super Comp

    Joined:
    Sep 14, 2003
    Messages:
    330
    Likes Received:
    8
    Pretty sure the rules allow a couple of access holes in the motor plate....I had them at 4:00 and 8:00 positions but they were hard to get at with a socket so the 6:00 (straight down) position worked the best...when we went to a clutch I welded plugs in the holes to stop the clutch dust from getting the oil pan and diaper grungy..
     
    #7
  8. Graham Brown

    Graham Brown New Member

    Joined:
    Mar 4, 2019
    Messages:
    6
    Likes Received:
    1
    Position the holes in the engine plate wherever they're needed and tap them to 1" NPT or AN-16 and use screw in plugs.
     
    #8
    OwnBlock likes this.
  9. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
    Staff Member

    Joined:
    May 6, 2003
    Messages:
    6,661
    Likes Received:
    117
    On a BAE/KB/TFX if you put a cooling hole around 4 o'clock you can get to it with the pan on, but you're going to have to use the bolts with a 7/16" head on them and most likely reduce to 1/4" drive socket. I've also used the swivel with the socket built onto it. Most of these options it is hard to get the required torque on them though.

    The best option is to make a torque extension. weld a broach for 1/2" drive on one end of a piece of plate, then make it long enough and weld a cutoff socket to the other end.
     
    #9

Share This Page