Engine mount spacers, 308 | FerrariChat

Engine mount spacers, 308

Discussion in 'Technical Q&A' started by pma1010, Apr 10, 2005.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
    2,559
    Chicago
    Full Name:
    Philip
    #1 pma1010, Apr 10, 2005
    Can someone tell me the orientation of the front (cones) and rear (flat) spacers on their engine mounts. On the fronts, do they mount like ice cream cones (larger diameter uppermost) so as to trap the mount in the recess or like traffic cones so as to distribute the load over a broader area?

    WSM shows "traffic cone" orientation, but I do not believe this is correct.
    Philip
     
  2. ferrarioldman

    ferrarioldman Formula 3
    Professional Ferrari Technician

    Jun 19, 2002
    1,029
    Summerfield, NC
    Full Name:
    Tom Jones
    #2 ferrarioldman, Apr 10, 2005
    The recessed areas are suppose to be up. Sometimes you may find washers in the recessed areas or they may be turned upside down to compensate for sagging mounts.
     
  3. pma1010

    pma1010 F1 Rookie

    Jul 21, 2002
    2,559
    Chicago
    Full Name:
    Philip
    #3 pma1010, Apr 10, 2005
    Thanks, Tom.
    Philip
     
  4. pad

    pad Formula 3

    Sep 30, 2004
    1,418
    Tequesta, FL
    Full Name:
    Paul Delatush
    #4 pad, Apr 24, 2006
    Last edited by a moderator: Sep 7, 2017
    When I took the engine out of my 83 308QV, I found the following bolts, washers and a single spacer as per the attached picture. I did not find anything resembling a "cone". I'm sure the engine has been out multiple times, and things are probably not in the correct order. For instance, there was only 1 "spacer" (#30 in the parts diagram). Some help would be appreciated.

    Thanks,
    Paul
    Image Unavailable, Please Login
     
  5. pad

    pad Formula 3

    Sep 30, 2004
    1,418
    Tequesta, FL
    Full Name:
    Paul Delatush
    #5 pad, Apr 25, 2006
    Ok, I found the "cones" in the 1979 308 parts manual. I also found the big washers there as well. It appears that my car has a combo of mounting hardware. Can anyone tell me what's correct? Also, regarding the shims (which I did not find on my car), what is their purpose? Are there measurements that should be adhered to?
     
  6. BODHIZEN

    BODHIZEN Rookie

    Jul 22, 2016
    1
    #6 BODHIZEN, Oct 5, 2018
    Could you possibly tell me the length an size of the rear bolts? the pitch would be overasking, but I'm missing mine and can't find replacements anywhere. 1978 GTS
     
  7. jmaienza

    jmaienza Formula Junior
    Rossa Subscribed

    Jan 8, 2009
    608
    Massachusetts
    Full Name:
    Joe
    #7 jmaienza, Oct 5, 2018
  8. ferrarioldman

    ferrarioldman Formula 3
    Professional Ferrari Technician

    Jun 19, 2002
    1,029
    Summerfield, NC
    Full Name:
    Tom Jones
    #8 ferrarioldman, Oct 19, 2018
    The front bolts are 12mm x 50mm and the rears are 12mm x 35mm, 1.75 thread pitch. Available at McMaster-Carr in grade 10.9
     
  9. Foxie

    Foxie Karting

    Oct 9, 2011
    65
    Wexford, Ireland
    Full Name:
    Sean Murray
    #9 Foxie, Aug 29, 2021
    How come the spacer is associated with the short bolts ?

    I understand the spacers are on the front mounts ?
     
  10. BigTex

    BigTex Seven Time F1 World Champ
    Owner Rossa Subscribed

    Dec 6, 2002
    79,218
    Houston, Texas
    Full Name:
    Bubba
    #10 BigTex, Aug 29, 2021
    There can be one spacer or many, while I am unsure what the spec they were achieving actually was, you should note "where they come from" and normally put them back after a mount change.
     

Share This Page