Switched upper pulley, I feel Gilgamesh's pain.

Discussion in 'SRT Hellcat General Discussions' started by moparmangamble, Apr 30, 2016.

  1. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    image.jpeg Here's my OEM upper pulley. PITA go figure. Fought me every inch! I had most of the inner hub cut away, maybe 1-2 threads were still engaged. Made 2 more cuts and some type of thread lock was sizzling and let go. I disassembled my snout to check the bearings, all okay.
     
    • Winner Winner x 2
    • Agree Agree x 1
  2. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    image.jpeg Front bearing is a 6405, rear is a 6305 if anyone wanted to know. I also recorded dimensions on the 8 pin pattern if guys need to make a holding tool.
     
    • Useful Useful x 2
    • Like Like x 1
  3. slester1

    slester1 Silver Member

    Joined:
    Jan 13, 2015
    Messages:
    304
    Likes Received:
    68
    Trophy Points:
    138
    Vehicle:
    Challenger SRT Hellcat
    Damn I can see this might be one of those tales that keeps my wrenchs in my drawers.
     
    • Winner Winner x 2
    • Agree Agree x 1
  4. bolivarshagnasty

    bolivarshagnasty Gold Member

    Joined:
    Oct 24, 2014
    Messages:
    1,581
    Likes Received:
    503
    Trophy Points:
    423
    Location:
    Chattanooga, Tennessee
    Vehicle:
    Challenger SRT Hellcat
    You are the first I have seen that had to cut the pulley off. May I ask why?
     
  5. zippy

    zippy Silver Member

    Joined:
    Feb 2, 2015
    Messages:
    350
    Likes Received:
    124
    Trophy Points:
    193
    Location:
    Ontario
    Vehicle:
    Charger SRT Hellcat
    I just did my 3rd one without any of issue, sorry for your troubles
     
  6. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    Second one to be cut off. Wasn't a big deal other than extra time which I don't have a lot of. I own my own fab shop so I have everything at my disposal including CNC mill and lathe. Just irritating. Double pinned my ATI lower, new injectors, even spark plug change went well. Had to be one snag...
     
  7. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

    Joined:
    Sep 7, 2014
    Messages:
    308
    Likes Received:
    165
    Trophy Points:
    293
    If you're willing to share the details on the pin layout for the holding tool I'd owe you a big favor.

    Sorry the original pulley put up such a fight - good job getting it done.

    rick@metcomotorsports.com
     
  8. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    The 8 pins have a diameter of .235". The diameter of the bolt circle is 1.615". On my mill with Accurite contoller I just pick my bolt circle with 8 holes and the magic happens! LOL That SOB would not let loose! But it was no match for a cut off wheel!
     
    • Like Like x 1
    • Useful Useful x 1
  9. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

    Joined:
    Sep 7, 2014
    Messages:
    308
    Likes Received:
    165
    Trophy Points:
    293
    1.615" measured across, center-of-pin to center-of-pin?
     
    Last edited: May 2, 2016
  10. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    1.615" center of pin to center of pin, you had a typo.
     
  11. dragrcr

    dragrcr Gold Member

    Joined:
    Sep 30, 2015
    Messages:
    857
    Likes Received:
    397
    Trophy Points:
    313
    Location:
    PASADENA, CALIFORNIA
    Vehicle:
    Challenger SRT Hellcat
    I thought you were already making these tools? I heard mention of it MONTHS ago. Sorry to bust your balls, but I would not even buy a pulley without this tool, so hopefully it will be affordable or we can rent it etc.........

    .
     
    • Agree Agree x 1
  12. Mopar22

    Mopar22 Silver Member

    Joined:
    Jan 9, 2016
    Messages:
    192
    Likes Received:
    89
    Trophy Points:
    198
    Location:
    New Mexico
    Vehicle:
    Challenger SRT Hellcat
    I remember Gilgamesh's thread, that's why my metco 2.85 is still in my tool box.
     
    • Like Like x 1
  13. usmc341

    usmc341 Gold Member

    Joined:
    May 27, 2015
    Messages:
    1,454
    Likes Received:
    409
    Trophy Points:
    218
    Location:
    Henderson, NV
    Vehicle:
    Challenger SRT Hellcat
    Sorry a little late on this, but do we have a pulley removal tool for the Hellcat? I know the Shelby has a bunch of vendors that make them. I've never seen a pulley have to be cut off like that.
     
  14. moparmangamble

    moparmangamble Gold Member

    Joined:
    Sep 7, 2015
    Messages:
    374
    Likes Received:
    232
    Trophy Points:
    293
    Vehicle:
    Challenger SRT Hellcat
    With Rick asking I'm sure they'll finally make them to hold the 8 pins. Problem is if the pulley is locked to the shaft like mine when you try turning the pulley off, you are turning the pulley and shaft together and the bolt retaining the 8 pin hub backs out. I tried over and over, then tried heat, and a little more heat, etc. Nothing. I cut everything away to get at the inner pulley hub. I then cut away the part of the hub that is threaded. There was 1-2 threads left and I couldn't budge it. At this time, I had the shaft out of the snout and in a vise, and a pipe wrench on what remained of the hub. Next I cut diagonally to avoid the cut off wheel contacting the bearing. I made 2 cuts and something started sizzling and smoking, large deposit of thread locker? Then I grabbed it with my leather glove on and spun it off by hand. Fought me all the way to the end! Maybe the assembler of mine and Gilgamesh's loves loctite! It wasn't difficult to cut off, just frustrating and time consuming.
     
    • Funny Funny x 1
  15. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

    Joined:
    Sep 7, 2014
    Messages:
    308
    Likes Received:
    165
    Trophy Points:
    293
    NO ONE has been willing to share the necessary details until now.

    Because the HC uses a threaded supercharger shaft, it is necessary to hold the shaft stationary to unscrew the original pulley and thread the replacement pulley into place. It is for this reason that the blower must be partially disassembled and the snout removed to access the shaft pins at the rear.

    OP, PM sent.
     
    • Useful Useful x 2

Share This Page