Rotation of 308 Engine | FerrariChat
Buy

Rotation of 308 Engine

Discussion in 'Technical Q&A' started by walawdog, Jan 3, 2005.

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

  1. walawdog

    walawdog Formula Junior

    Nov 9, 2004
    829
    Bluefield, WV
    Full Name:
    Anthony
    #1 walawdog, Jan 3, 2005
    When looking at the harmonic balancer.........what direction does the engine rotate....clockwise, or counterclockwise? I don't have anyone to assist me in turning the engine over so I can watch what direction it turns.
     
  2. Sean F.

    Sean F. F1 Rookie

    Feb 4, 2003
    3,066
    Kansas
    Full Name:
    Sean F
    #2 Sean F., Jan 3, 2005
    When looking at the balancer from the passenger wheel well, it turns clock wise.
     
  3. F308 MAN

    F308 MAN F1 Rookie

    Jan 19, 2004
    2,907
    Isle of Man
    Full Name:
    Dave S
    #3 F308 MAN, Jan 3, 2005
    apologies for ignorance .... what is a harmonic balancer ?
     
  4. Lawrence Coppari

    Lawrence Coppari Formula 3

    Apr 29, 2002
    2,185
    Kingsport, TN
    Full Name:
    Lawrence A. Coppari
    #4 Lawrence Coppari, Jan 3, 2005
    Raise rear wheels.
    Remove right rear tire.
    Replace two of the studs.
    Place transmission in 5th gear.
    Release emergency brake.
    Mark a readily seen pulley or belt with white out.
    Put a bar over one stud and under the other.
    Place foot on bar so wheel turns in forward direction.
    Step on bar. If you're a lightweight, bounce on bar a little.
    Look back at which way line mark moved.

    By the way, it turns clockwise.
     
  5. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,658
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #5 Steve Magnusson, Jan 3, 2005
    walawdog -- You asked a trick question -- the "engine" doesn't rotate ;) Seriously, the crankshaft rotates CW per Sean's description (assuming the US "passenger" = "RH"), but all the cam stuff rotates CCW (viewed from the RH side) so keep that in mind.

    F308 MAN -- The harmonic balancer is an additional mass that is connected to the crankshaft by a flexible connection (helps reduce/control unwanted torsional resonances of the crankshaft).
     
  6. walawdog

    walawdog Formula Junior

    Nov 9, 2004
    829
    Bluefield, WV
    Full Name:
    Anthony
    #6 walawdog, Jan 3, 2005
    Speaking of the harmonic balancer, has anyone used Nick Forza's balancer? I am thinking about getting one, mostly because the timing marks are indexed on his balancer and the ones on the flywheel are so damn hard to see.
     
  7. Dale

    Dale F1 Veteran

    Oct 7, 2003
    5,211
    uk
    Full Name:
    Dale Juan
    #7 Dale, Jan 3, 2005
    Basically sound/vibration it's a killer in high rpm F1 engines and in these applications its very much unwanted,if you take a look at run of the mill motor car you'll see a damper on the front of the crank pully usually rubber this absorb's the unwanted noise to an acceptable level,

    Dale.
     

Share This Page