550 oil pump chain and guide problem | FerrariChat
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550 oil pump chain and guide problem

Discussion in 'Technical Q&A' started by hudykar, Sep 15, 2025.

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  1. hudykar

    hudykar Rookie

    Jun 10, 2024
    1
    Poland
    Full Name:
    Oskar Hudyka
    #1 hudykar, Sep 15, 2025
    Hi!
    I’ve done big service with timing belt, all bearings in timing gears and oil pump chain+guides in 550. Bearings and chain was changed because of the rattle noise from its location.
    After few km done rattle came back. After inspection I found out that shoe guide is damaged (silver one on the right).

    I’m wondering if it’s my mistake or low quality of parts. Everyting was new OE parts.
    Workshop manual doesn’t say anything about adjusting play on that chain.

    I’ll be appreciate for comments.

    The car is 1998 550 Maranello.

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  2. Fachmann

    Fachmann Rookie

    Mar 2, 2018
    12
    Full Name:
    YS
    #2 Fachmann, Oct 5, 2025 at 4:53 PM
    There is no adjustment for the oil pump chain on 550. I would assume a low-quality part. Pre-lubricate a working surface of the new guides upon the installation.
     

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