News

LH Threads??

Discussion in '308/328' started by FF8929, Apr 7, 2010.

  1. FF8929

    FF8929 Formula Junior

    Apr 12, 2008
    799
    Livonia, Michigan
    Full Name:
    Fred Flynn
    I'm helping a friend put a rear main seal in a 83 308. Did I read here correctly that one of the nuts, holding the drop gears on, has LH threads? (Yes, I tried a search)
     
  2. To remove this ad click here.

  3. Denman_Honda

    Denman_Honda Karting

    Sep 3, 2009
    123
    DFW, TX
    Full Name:
    Chris Denman
  4. FF8929

    FF8929 Formula Junior

    Apr 12, 2008
    799
    Livonia, Michigan
    Full Name:
    Fred Flynn
    Which one (please)?
     
  5. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,183
    Snohomish, WA
    Full Name:
    Eric L
    What? I just replaced the clutch on my '78 308 GTS. ALL of the fasteners were right handed.
     
  6. mk e

    mk e F1 World Champ

    Oct 31, 2003
    11,962
    The twilight zone
    Full Name:
    The Butcher
    The counter shaft in the trans I believe and you shouldn't need to remove it to get to the rear main seal. The clutch and input are both right hand I'm pretty sure.
     
  7. To remove this ad click here.

  8. chris marsh

    chris marsh F1 Rookie
    Silver Subscribed

    Aug 30, 2005
    4,635
    Detroit
    Full Name:
    Chris Marsh
    #6 chris marsh, Apr 7, 2010
    Last edited by a moderator: Sep 7, 2017
    I found step by step instructions somewhere on the net and it clearly states both these nut are RH.

    But I spent a couple hours last night trying to get these loose.

    Picked up a bigger compressor and 650 ft pound impact wrench today I'll try that tonight.

    Any suggestions?
    Image Unavailable, Please Login
     
  9. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,236
    Meadow Vista, CA
    Full Name:
    R Moseley
    Thats one of my pictures, and yes the nuts in that picture are Standard RH thread. Do you have the right ring nut tool? I just put the trans in 1st gear, drifted the nut lock collars back into an upright position and they came right off with the ring nut tool I had using my 1/2 inch impact on low pressure (at the gun).

    Here is the whole sequence if it helps:

    http://www.flickr.com/photos/moseley_ferrari/sets/72157602899523865/


    Rick
     
  10. chris marsh

    chris marsh F1 Rookie
    Silver Subscribed

    Aug 30, 2005
    4,635
    Detroit
    Full Name:
    Chris Marsh
    Rick,
    Yes that's your pick you sent me the link in my Rear Main Seal thread.

    Mine aren't coming off but like I said I have a new imact gun to try tonight.

    Do you know where the step by step instructions are located?
     
  11. chris marsh

    chris marsh F1 Rookie
    Silver Subscribed

    Aug 30, 2005
    4,635
    Detroit
    Full Name:
    Chris Marsh
  12. To remove this ad click here.

  13. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,183
    Snohomish, WA
    Full Name:
    Eric L
    #10 flyngti, Apr 7, 2010
    Last edited by a moderator: Sep 7, 2017
    Here's what I did to loosen the ring nut. Big breaker bar with a long extension supported by a block of wood. I stuffed a shop towel in the gears to keep the engine from turning and the nut loosened right up with no drama.

    Also, if all you need to do is remove the bellhousing to get to the clutch, you only need to remove the lower nut. The upper does not need to be removed.
    Image Unavailable, Please Login
     
  14. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,236
    Meadow Vista, CA
    Full Name:
    R Moseley
    Ya gotta love ingenuity!!

    Rick
     
  15. FF8929

    FF8929 Formula Junior

    Apr 12, 2008
    799
    Livonia, Michigan
    Full Name:
    Fred Flynn
    Thank you all, for the clarification.
     
  16. mk e

    mk e F1 World Champ

    Oct 31, 2003
    11,962
    The twilight zone
    Full Name:
    The Butcher
    That is how I do it and they always pop right off
     
  17. Denman_Honda

    Denman_Honda Karting

    Sep 3, 2009
    123
    DFW, TX
    Full Name:
    Chris Denman
    Oops, yes I was thinking further along the line in the transmission. My mistake and sorry for the confusion. This also holds true for a 246 Dino. I as well use an impact to do this.

    To the OP, good luck with the project!!!
     
  18. BigTex

    BigTex Seven Time F1 World Champ
    Rossa Subscribed Owner

    Dec 6, 2002
    74,279
    Houston, Texas
    Full Name:
    Bubba
    Man, that sounds pretty easy!
     
  19. chris marsh

    chris marsh F1 Rookie
    Silver Subscribed

    Aug 30, 2005
    4,635
    Detroit
    Full Name:
    Chris Marsh
    Well my new impact gun took that nut off in about 5 seconds. Now I am having a hard time seperating the bell housing. Seems the last fool sealed it with RTV which is not helping matters.

    Any special techniques for that?
     
  20. flyngti

    flyngti Formula 3

    Jul 16, 2009
    1,183
    Snohomish, WA
    Full Name:
    Eric L
    #17 flyngti, Apr 8, 2010
    Last edited by a moderator: Sep 7, 2017
    I used a scrap piece of metal and made a puller. Two of the transfer case cover studs are almost directly in line with and are slightly longer than the transmission input shaft. I drilled two holes in the piece of scrap an bolted it to the studs. By slowly and carefully tightening the nuts, the puller pulled the bellhousing away from the back of the engine and broke the RTV seal. Do NOT use your impact hammer for this. The nuts only need to be tightened a little bit. Once the seal is broken, remove the puller and pull the bellhousing off by hand.
    Image Unavailable, Please Login
     

Share This Page