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Power Steering Reservoir

Discussion in '365 GT4 2+2/400/412' started by Tojo, Oct 20, 2019.

  1. Tojo

    Tojo Formula Junior

    Apr 12, 2002
    329
    Sydney
    Full Name:
    Tim
    Hello experts, I'm wondering what is the correct finish is for the power steering reservoir lid. Mine is painted black, but I see in a lot of photos, they are also plated silver or yellow. Was there a change in caps with the different series of these cars? Mine is a 400 GT. Looking to get it right as i tidy it up. Thanks
     
  2. Schumi

    Schumi Formula Junior
    Owner

    Jun 5, 2002
    687
    Missouri
    Full Name:
    Daren
    Mine (a 1982 Series 1) is definitely a yellow/gold-ish finish. Looks to be the same color as the fuel lines from the distributor.
     
  3. Part Time

    Part Time Formula Junior
    Silver Subscribed

    Dec 16, 2013
    470
    Port St. Lucie, Fl
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    Gary Shore
    samsaprunoff, Schumi and Tojo like this.
  4. Tojo

    Tojo Formula Junior

    Apr 12, 2002
    329
    Sydney
    Full Name:
    Tim
    Thanks for the responses. I looked at a mates '81 400i last week and it was a plated reservoir, then I looked at a '77 400GT at an Auction and it was painted black. Perhaps it's a change that happened post carburetors?? I went with the black like the other GT, but can be swayed to strip and re-plate it if I'm definitely wrong
     
  5. wda24729

    wda24729 Formula Junior

    Sep 22, 2014
    957
    Devon, UK
    Full Name:
    Graham
  6. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
    Full Name:
    Brian Crall
    Yellow zinc. Cad had long since stopped being used in most automotive applications.
     
  7. raemin

    raemin Formula Junior

    Jan 16, 2007
    297
    Lyon (FR)
    Full Name:
    R. Emin
    The original plating technique is still used for aircraft and that is one of the reason why we can still have fasteners plated this way, but since 2016 the restrictions have gone even worse (at least in my country).

    There is a yellowish substitute, not real cadmium plating but good enough.
     
  8. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
    Full Name:
    Brian Crall
    Cad in the automotive world went the way of the dinosaurs in the 50's and 60's because of the expense. Rare except in aviation and marine.

    Zinc is just as good except in the presence of salt and when done properly even people in the plating business cannot tell the difference.
     
  9. markcF355

    markcF355 Formula 3
    Rossa Subscribed

    Jun 6, 2004
    1,860
    Schmecklestan
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    Mark
    That is actually a BMW part. BMW puts a filter in it in their cars.
     
  10. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
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    Brian Crall
    So does Ferrari. I used to replace them regularly.
     
  11. markcF355

    markcF355 Formula 3
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    Jun 6, 2004
    1,860
    Schmecklestan
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    Brian, I think BMW installs the filter and Ferrari doesn't. Is this correct?
     
  12. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
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    Brian Crall
    No, the Ferraris are also supposed to have a filter. I changed many. Those ZF systems all had a filter as far as I know.
     
  13. Choptop400

    Choptop400 Karting

    Oct 10, 2014
    85
    Huntington, NY
    Full Name:
    Frank L Caponi
    I was reading your thread as I was working on an annual PMI of my 365GT4 2+2. I am not challenging if there is a filter or not as, I have not opened my power steering reservoir to check. If there is a filter does anyone have a part number and where to order or purchase. I was ordering PMI filters and parts and pulled a diagram of the power steering system. There is no part listing listed in the diagram. I attached the diagram from Ricambi Americas.
     

    Attached Files:

  14. Choptop400

    Choptop400 Karting

    Oct 10, 2014
    85
    Huntington, NY
    Full Name:
    Frank L Caponi
    Thank you, either or, systems like quite a difference in appearance.
     
  15. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
    Full Name:
    Brian Crall
    The reservior is supposed to have a perforated plate holding the filter down with a spring and retaining clip on the stud that holds the cap on. The lower filter also takes the place of the plate.

    Cannot tell from the pictures but they are the same size.


    Like a few other items with Ferrari they never pictured it, they never referred to it and they never offered it. During the period I was working on a lot of 400's the dealer I was at was unaware of the filter until I started there.
     
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  16. Ak Jim

    Ak Jim F1 Rookie
    Rossa Subscribed Owner

    Dec 23, 2007
    4,668
    North Pole AK
    I will have to check mine. I was planning on changing the PS fluid this winter. Anyone have any recommendations on fluid? I typically use Mobil synthetic ATF in all of my other vehicles and it has worked well. I'm always open to suggestions.
     
    Schumi likes this.
  17. Attila400

    Attila400 Rookie

    Feb 7, 2018
    15
    Budapest
    Full Name:
    Attila
    Hi, this is a good thred. Mine reservior is also yellow. Original for sure. I restore it, now the only solution is yellow zinc plating due to EU regulation. Experts told that previously it was cadmium plated. Now the zinc is less bright but still nice. And thank you for the filter thing. I thought my car was unique, there was a filter inside i only realized when the zinc plater dissasembled it. If you dismatle it it is under a round piece of metal on the bottom of the reservoir is the filter. It was so ugly that i beleve it was inside for 39 years..


    Sent from my iPhone using FerrariChat.com mobile app
     
  18. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
    26,474
    Austin TX
    Full Name:
    Brian Crall
    Like a few other items with Ferrari they never pictured it, they never referred to it and they never offered it. During the period I was working on a lot of 400's the dealer I was at was unaware of the filter until I started there.
    Properly done zinc and cad are indistinguishable. People in the plating business can't even tell them apart visually. Cad has not been used in the car business for a very long time.
     
  19. Schumi

    Schumi Formula Junior
    Owner

    Jun 5, 2002
    687
    Missouri
    Full Name:
    Daren
    As always with this site and its contributors, I learn something new and interesting. I too would be curious to know what power steering fluid brand/make is the best for our cars. Any suggestions are appreciated.
     
  20. Schumi

    Schumi Formula Junior
    Owner

    Jun 5, 2002
    687
    Missouri
    Full Name:
    Daren
    One other question - is there a trick to changing the fluid or is it just a suck out the old from the reservoir and pour in new to fill?
     
  21. Ak Jim

    Ak Jim F1 Rookie
    Rossa Subscribed Owner

    Dec 23, 2007
    4,668
    North Pole AK
    Just changing the fluid in the reservoir is a very small percentage of total fluid. While some of the details for the Ferrari will be a little different than the video the process will be the same.

     

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