Local distributor shop

Discussion in 'Everything Else' started by dcdoug, Nov 30, 2017.

  1. dcdoug

    dcdoug Contributing Member Member

    Anyone know of a local shop that does distributor repair/rebuilds? I need to replace the lower collar on my old Fomoco distributor. I have a new collar, but the gear has to pulled off and pressed back on and since it's been done once before, the holes might need to be re-used for the gear pin. Simon at Tysons Machine doesn't want to touch it since there is already a second set of holes from the gear being replaced at some point in the past. Figured someone at a distributor shop has a trick to deal with this scenario.

    Thoughts?
     
  2. Jim Harding

    Jim Harding Contributing Member Member

    Location:
    La Plata, Maryland
    I’ve replaced the bronze gear on my MSD dizzy three times and have used the original holes every time. I just use a bit of Lucas oil stabilizer on the shaft to ease the installation and place it over the holes.
    Oh, and a small drift pin to line the holes up.
     
  3. dcdoug

    dcdoug Contributing Member Member

    Makes sense - can anyone help me do this (I don't have a press)?
     
  4. Scott Harrison

    Scott Harrison "Growing old is mandatory, growing up is optional" Staff Member Contributing Member Member

    Try this:

    Shrink the shaft by freezing it (I use the CO2 from s canister duster held upside down)
    Heat the gear in the oven.
    Quickly place the gear on the shaft and slide it down and align the holes. (Wear gloves obviously)

    LMK if it works.
     
  5. dcdoug

    dcdoug Contributing Member Member

    Interesting. I'll give that a crack. I'll ask Simon to pull the gear off and mark the hole. Engine's done. I'll pick it up next week.
     
  6. Scott Harrison

    Scott Harrison "Growing old is mandatory, growing up is optional" Staff Member Contributing Member Member

    And lightly oil the shaft ...uh..the dizzy shaft, not yours.
     
  7. DucatiThunder

    DucatiThunder Member

    Location:
    Millersville, MD
    Idk if the Co2 will cool it enough to get enough shrink. Honestly I would just put the whole dizzy in the freezer. Give you a longer working time if needed. If you end up having to drill another hole measure it twice. The numb nuts at the shop I took mine to argued about the spec then didn’t pull all the lash out of the shaft. They drilled it and it was 35thou out of spec. Took it back for them to fix it and the 2nd go was still not close. I ended up buying another dizzy.
     
    Scott Harrison likes this.
  8. Hot Rod

    Hot Rod Contributing Member Member

    Location:
    Springfield, VA
    Get a MSD. They rebuild theirs for about $90 with a new shaft and gear.
     
  9. Scott Harrison

    Scott Harrison "Growing old is mandatory, growing up is optional" Staff Member Contributing Member Member

    Yeah, we tried getting the gear off Vic's dizzy with my 20 ton press....wouldnt budge! So he had to return it to MSD.
     
  10. Jim Harding

    Jim Harding Contributing Member Member

    Location:
    La Plata, Maryland
    With my MSD, it was easy to pull the old gear off.....the challenge was putting the new gear on and lining it up to use the same holes in the shaft.
     
  11. Draw a line up the shaft through the hole for alignment. I set oven on highest setting and baked gear for 30min. As Jim said have a tapered pin to go in gear to help last minute hole alignment.
     
    dcdoug likes this.
  12. dcdoug

    dcdoug Contributing Member Member

    That's why I can't get the gear off.
     
  13. dcdoug

    dcdoug Contributing Member Member

    I was also thinking about putting the whole dizzy in the freezer.
     
  14. dcdoug

    dcdoug Contributing Member Member

    I like the way I have this distributor set up.
     
  15. I put the dissy in the freezer, but not sure it helped much. CO2 should be better.
     
    Last edited: Dec 4, 2017

Share This Page