440 871 supercharger ?

Forced Induction Mopar

  1. flathead31coupe

    flathead31coupe Well-Known Member

    Messages:
    598
    Likes Received:
    83
    Joined:
    Aug 1, 2010
    Location:
    indianapolis indiana
    Local Time:
    6:32 PM
    after swapping the engine from my 66 to my 65, i just removed the blower carb ect complete., installed the engine and blower, torqed the blower nuts in the right pattern and torq...cranked her up until it had fuel pressure...mach pump, fired right up. shut it off to ck things out, tried to restart it, its started right up, made a noise and died....the belt had skipped and loosend, and the blower wont turn now. with belt off and blower nuts off still wont turn...no problem with blower at all before...
     
  2. jimjimjimmy

    jimjimjimmy lobsterman FABO Gold Member

    Messages:
    4,533
    Likes Received:
    1351
    Joined:
    Nov 2, 2010
    Location:
    p. e. i.
    Local Time:
    7:32 PM
    there must be something jammin it up . is there any chance a nut or a washer could fall into the carbs ?
     
  3. Plymouth 65

    Plymouth 65 Floorable Deplorable

    Messages:
    1,296
    Likes Received:
    1220
    Joined:
    Jun 27, 2016
    Location:
    Mich
    Local Time:
    6:32 PM
    Hopefully nothing got sucked into the blower! I'm like a surgeon when opening up my motor. All nuts, bolts, and washers need to be accounted for before I fire it up! 65'
     
  4. flathead31coupe

    flathead31coupe Well-Known Member

    Messages:
    598
    Likes Received:
    83
    Joined:
    Aug 1, 2010
    Location:
    indianapolis indiana
    Local Time:
    6:32 PM
    no there is a screen under the carbs before the blower
     
    • Like Like x 1
    • flathead31coupe

      flathead31coupe Well-Known Member

      Messages:
      598
      Likes Received:
      83
      Joined:
      Aug 1, 2010
      Location:
      indianapolis indiana
      Local Time:
      6:32 PM
      i left the scoop on the carbs, they were bolted to the blower, and taking off as one piece
       
    • diymirage

      diymirage HP@idle > hondaHP@redline

      Messages:
      21,948
      Likes Received:
      17456
      Joined:
      Oct 12, 2012
      Location:
      michigan
      Local Time:
      6:32 PM
      Can you turn it the opposite direction?

      If the entire engine is seized up, I wonder if the timing chain may be to blame

      Maybe remove all thesparkplugs, valve covers and try again?

      (The valve covers only need to come off for inspection of course)
       
    • flathead31coupe

      flathead31coupe Well-Known Member

      Messages:
      598
      Likes Received:
      83
      Joined:
      Aug 1, 2010
      Location:
      indianapolis indiana
      Local Time:
      6:32 PM
      no. pulled the belt off the blower and raised it off the manifold blower doesnt turn either direction.
       
    • diymirage

      diymirage HP@idle > hondaHP@redline

      Messages:
      21,948
      Likes Received:
      17456
      Joined:
      Oct 12, 2012
      Location:
      michigan
      Local Time:
      6:32 PM
      Man, I know nothing about blowers, but that sounds like something got bound up in there

      Am I right that the engine turns freely still?

      And it is the same engine the blower was on before, right?
      Just in a different chassis?
       
    • flathead31coupe

      flathead31coupe Well-Known Member

      Messages:
      598
      Likes Received:
      83
      Joined:
      Aug 1, 2010
      Location:
      indianapolis indiana
      Local Time:
      6:32 PM
      yes no issues at all just swapped cars...
       
    • diymirage

      diymirage HP@idle > hondaHP@redline

      Messages:
      21,948
      Likes Received:
      17456
      Joined:
      Oct 12, 2012
      Location:
      michigan
      Local Time:
      6:32 PM
      Hate to say it, but im afraid it's time to pull the carbs and take a look at the rotors
       
      • Like Like x 1
      • flathead31coupe

        flathead31coupe Well-Known Member

        Messages:
        598
        Likes Received:
        83
        Joined:
        Aug 1, 2010
        Location:
        indianapolis indiana
        Local Time:
        6:32 PM
        i agree, thats next...
         
      • diymirage

        diymirage HP@idle > hondaHP@redline

        Messages:
        21,948
        Likes Received:
        17456
        Joined:
        Oct 12, 2012
        Location:
        michigan
        Local Time:
        6:32 PM
        Hope it will be an easy fix...post some pics up for us
         
      • flathead31coupe

        flathead31coupe Well-Known Member

        Messages:
        598
        Likes Received:
        83
        Joined:
        Aug 1, 2010
        Location:
        indianapolis indiana
        Local Time:
        6:32 PM
        will do thanks
         
      • diymirage

        diymirage HP@idle > hondaHP@redline

        Messages:
        21,948
        Likes Received:
        17456
        Joined:
        Oct 12, 2012
        Location:
        michigan
        Local Time:
        6:32 PM
        No problem
        Just wish I could have actually helped

        I'm trying to think if there is anything that could have gotten sucked in or something, but dollars to donuts...some piece of hardware made it passed the screen
        Or maybe something inside came loose

        Shoot, I dont know
         
        • Thanks! Thanks! x 1
        • pishta

          pishta I know I'm right....

          Messages:
          19,074
          Likes Received:
          8495
          Joined:
          Oct 13, 2004
          Location:
          Tustin, CA
          Local Time:
          3:32 PM
          teflon seals? Maybe you popped one? Dont know about Rootes style blowers but I did hear about a "dusted" bus motor that injested dirt and the 671 blower was shot.
           
        • TT5.9mag

          TT5.9mag Two atmospheres are better than one

          Messages:
          791
          Likes Received:
          772
          Joined:
          May 5, 2016
          Location:
          So cal
          Local Time:
          3:32 PM
          Could also be a bearing in the front or rear case of the blower or something in the gearing.
           
        • flathead31coupe

          flathead31coupe Well-Known Member

          Messages:
          598
          Likes Received:
          83
          Joined:
          Aug 1, 2010
          Location:
          indianapolis indiana
          Local Time:
          6:32 PM
          not sure what happend, i was able to get it to turn by moving it back and fourth, there was one small spot on two of the rotors about an 1'' from the end that was hitting the case, was able to smooth them down so it would turn free, looks like the front end of the blower may have been tightned down to where the rotors touched the housing and built up material until it ceased..it turns free now both ways but not sure if i should run it ....calling dyer in the morning and ask them
           
        • flathead31coupe

          flathead31coupe Well-Known Member

          Messages:
          598
          Likes Received:
          83
          Joined:
          Aug 1, 2010
          Location:
          indianapolis indiana
          Local Time:
          6:32 PM
          the gaps between the rotors and case are so close it just took a small spot to bind it up, doesnt look like a piece of angthing the fell in
           
          • Like Like x 1
          • pishta

            pishta I know I'm right....

            Messages:
            19,074
            Likes Received:
            8495
            Joined:
            Oct 13, 2004
            Location:
            Tustin, CA
            Local Time:
            3:32 PM
            thats weird, yet good that it looks runnable. That would suck big time if it sucked anything up and locked or scarred the housing.
             
          • flathead31coupe

            flathead31coupe Well-Known Member

            Messages:
            598
            Likes Received:
            83
            Joined:
            Aug 1, 2010
            Location:
            indianapolis indiana
            Local Time:
            6:32 PM
            it was just on the leading edge of two rotors one small spot on the bottom front of the case,,, dont know it will hurt it or not...it spins smooth
             
          • Coyote Jack

            Coyote Jack Member #55, I'm old FABO Gold Member

            Messages:
            8,615
            Likes Received:
            2760
            Joined:
            May 22, 2004
            Location:
            Baxters Corner N.B. Canad
            Local Time:
            7:32 PM
            Obviously something got in there somehow and is now dislodged. I would check the plenum before I ran that engine again. Whatever it was could have fallen in and you don't want whatever it was going through the engine.

            Jack
             
            • Agree Agree x 1
            • flathead31coupe

              flathead31coupe Well-Known Member

              Messages:
              598
              Likes Received:
              83
              Joined:
              Aug 1, 2010
              Location:
              indianapolis indiana
              Local Time:
              6:32 PM
              i had the blower on the bench, when i was working on it...i didnt see anything, that was locking it up other than what i said above...its crazy,,, it never really ran, just started and i shut it off to check it over, then tried to restart it, it made an attempt then locked,,,looked like a build up of alum in thoses two little spots
               
            • Coyote Jack

              Coyote Jack Member #55, I'm old FABO Gold Member

              Messages:
              8,615
              Likes Received:
              2760
              Joined:
              May 22, 2004
              Location:
              Baxters Corner N.B. Canad
              Local Time:
              7:32 PM
              The fact that you say there looked to be a build up of aluminum in those two spots tell me that something got in there, spun with the rotors, scored the casing and then dislodged. Time to check it out real good.

              Jack
               
            • flathead31coupe

              flathead31coupe Well-Known Member

              Messages:
              598
              Likes Received:
              83
              Joined:
              Aug 1, 2010
              Location:
              indianapolis indiana
              Local Time:
              6:32 PM
              ok this get crazy, i call dyer they said i need a 0.15 blower base gasket they have, and that a thicker gasket will cause my issue, they have delt with the issue before...now here is the crazy part, i was able to clean up the rotors and turns smooth and free....i re used the base gasket that it ran with before, it is thick about 0.30.... so i bought a new gasket from a local race store, its the only one they have for a 871 blower...so i installed it proper pattern and torq spec...it doesnt turn free, so i guess ill order a new one from dyer on mon. there install inst, said to use a thin gasket or a gas resistent sealer.
               
            • pishta

              pishta I know I'm right....

              Messages:
              19,074
              Likes Received:
              8495
              Joined:
              Oct 13, 2004
              Location:
              Tustin, CA
              Local Time:
              3:32 PM
              Is the housing flexing with the thicker gasket? Im thinking the .015 gasket wont compress as much as the .030 and possibly keep the housing from twisting or binding on some serious tolerances of a Rootes type blower....?
               
            1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
              By continuing to use this site, you are consenting to our use of cookies.