355 - Oil pressure sensor removal | FerrariChat
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355 Oil pressure sensor removal

Discussion in '348/355' started by lanab, Jul 25, 2021.

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  1. lanab

    lanab Formula Junior

    Feb 21, 2016
    510
    Stockholm, Sweden
    #1 lanab, Jul 25, 2021
    I have a problem replacing the oil pressure sensor in my 355, it's completely stuck, i have a crown wrench but i am afraid to use too much force as the aluminium casting it sits in seems very thin.

    Anyone else hade problems or suggestion what i could do?
     
  2. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,019
    NE FL
    Full Name:
    Ken
    #2 kenneyd, Jul 25, 2021
    Its very hard to remove without damaging the sensor. I removed mine like 7 year ago, I think i resorted to a vice grip. But it was fine since I was replacing it.
     
    Pepsi10 likes this.
  3. lanab

    lanab Formula Junior

    Feb 21, 2016
    510
    Stockholm, Sweden
    #3 lanab, Jul 25, 2021
  4. Qavion

    Qavion F1 World Champ
    Silver Subscribed

    Feb 20, 2015
    14,290
    Sydney
    Full Name:
    Ian Riddell
    #4 Qavion, Jul 25, 2021
    Had to apply heat on mine (from a heat gun) and use the double spanner method for extra leverage. It released with a loud crack. Heartstopping :confused:
     
    lanab, 308 GTB and Mike Morrissey like this.
  5. Ferrarium

    Ferrarium F1 Veteran
    Sponsor Rossa Subscribed

    Jul 28, 2018
    5,728
    Central NJ
    Full Name:
    Eric
    #5 Ferrarium, Jul 26, 2021
    I used double wrenches 20 degrees apart, You can then grip them both and squeeze like cutters. Works like a charm, good for tightening too.
     
  6. lanab

    lanab Formula Junior

    Feb 21, 2016
    510
    Stockholm, Sweden
    #6 lanab, Jul 26, 2021
    Last edited: Jul 26, 2021
    You did this in situ or removed the oil base unit first from the car?

    A simple 5 min job turns out to be a real pain, worst case scenario is i have to remove the whole oil base unit.
     
  7. lanab

    lanab Formula Junior

    Feb 21, 2016
    510
    Stockholm, Sweden
    #7 lanab, Jul 29, 2021
    It's finally out, i had to use the torch and protected all surrounding cables, it came loose like butter.

    The pressure is like it should be now and follows the engine load....
     
    Qavion likes this.

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