348 - Layshaft install issue | FerrariChat
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348 Layshaft install issue

Discussion in '348/355' started by FSM348, Jun 3, 2019.

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  1. FSM348

    FSM348 Formula Junior

    Feb 13, 2017
    469
    Midwest
    Full Name:
    Dan Smith
    #1 FSM348, Jun 3, 2019
    I am currently putting my gearbox back together and I’m struggling to fit the layshaft back in. I’ve got it in far enough for the roller bearings to be mostly seated and the synchro just started to slide into place. I think the springs are stuck on the ridges on the lay shaft that secure the synchro to the shaft and are preventing any further movement. Any tips or tricks?
     
  2. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,127
    socal
    #2 fatbillybob, Jun 4, 2019
    Fishing line hold springs slide over shaft pull out fishing line. I think 10lb test monofilament line is the right thickness/strength for the job. After a while you can do it by hand. Seems like you need 3 hands to do this stuff sometimes.
     
  3. FSM348

    FSM348 Formula Junior

    Feb 13, 2017
    469
    Midwest
    Full Name:
    Dan Smith
    #3 FSM348, Jun 4, 2019
    Are you running the line along one of the inside ridges of the synchro or tying string to the springs?
     
  4. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,784
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    #4 plugzit, Jun 7, 2019
    You're in Indy. Ernie is in Indy. He's done (too) many gearboxes. PM me for his contact info.
     

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