348 engine out finsh up questions | FerrariChat

348 engine out finsh up questions

Discussion in '348/355' started by joshtownsend, Oct 9, 2014.

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  1. joshtownsend

    joshtownsend Formula Junior

    Jul 12, 2007
    422
    H-town...TEXAS
    #1 joshtownsend, Oct 9, 2014
    Last edited by a moderator: Sep 7, 2017
    I have 3 questions...

    1. what are the spark plugs gap to normally?

    2. What is the clearance measurement for the belt followers suppose to be? I heard 0.60 metric maybe??

    3. Looking at the below picture, I have 2 vacuum lines that are missing their home.. one is a small line that comes off a vacuum housing, that is in red and shows its track and length better.... the other looks like on the housing itself, pointing in yellow, its needs a small hose.. any ideas on these? They both go to/from the same block.

    Thanks Josh
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  2. joshtownsend

    joshtownsend Formula Junior

    Jul 12, 2007
    422
    H-town...TEXAS
    ok, seems like its .25-.28 in on my old ones and the new ones came .258..so i'm going with that.. so still need answers for 2 and 3..
     
  3. joshtownsend

    joshtownsend Formula Junior

    Jul 12, 2007
    422
    H-town...TEXAS
    ok, the red line goes on the back of the intake manifold...

    so, number 2 answered ..


    so im wondering if the yellow arrow is even suppose to be connected??>..
     
  4. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,620
    The Brickyard
    Full Name:
    The Bad Guy
    #4 ernie, Oct 9, 2014
    Last edited: Oct 9, 2014
    0.6mm - 0.7mm

    At least 1mm gap

    One vacuum line goes to the nipple on the back of the plenum

    The other vacuum line goes to the solenoid for the air injection/intake compensation valve

    The 3rd nipple on the vacuum accumulator has nothing on it
     
  5. joshtownsend

    joshtownsend Formula Junior

    Jul 12, 2007
    422
    H-town...TEXAS
    That's what i needed. Engine should go back in tomorrow now.. thanks !! Josh
     

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