Why timing chain tensioner has to be replaced even if its only 30k miles | FerrariChat

Why timing chain tensioner has to be replaced even if its only 30k miles

Discussion in 'Technical Q&A' started by 24000rpm, Apr 5, 2020.

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  1. 24000rpm

    24000rpm F1 Rookie

    Aug 31, 2012
    4,649
    China and California
    #1 24000rpm, Apr 5, 2020
    Why the F430's timing chain Tensioner has to be replaced even if its only 30k miles, as per service manual says in the line of "if it was installed once, replace it"

    also, why the 360/430 oil circulation has to take up spaces in the gearbox? isn't a close loop in the engine good enough?
     
    MCASEY likes this.
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    34,003
    Austin TX
    Full Name:
    Brian Crall
    #2 Rifledriver, Apr 7, 2020
    The tensioner has a ratchet like function to it to prevent it from collapsing allowing the chain to slip damaging the motor. Trying to reuse it can damage that function.

    The oil is in a tank cast into the transmission housing to facilitate it being a dry sump system. It was placed there to centralize the weight of the tank and oil.
     
    Qavion, 24000rpm and rotaryrocket7 like this.

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