General Stainless steel fasteners for the i-CTDi - engine bay

Discussion in '7th Generation (2003-2008) [Acura TSX]' started by ACC-CDI-2T, Friday 30th May, 2014.

  1. ACC-CDI-2T Valued Contributor ★ ★ ★ ☆ ☆

    Cologne
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    It´s neither a sensation, nor a revolution. It´s more a small, nice but lasting optical improvement of your
    engine bay (if you like stainless steel)

    So, if you want to exchange some rusty or shabby fasteners for shiny stainless steel ones, enclosed you´ll
    find a small list and some photos for this purpose. I myself only changed some visible fasteners, which al-
    ways annoyed me - but no high strength steel screws or nuts, which have to absorb high forces. (this you
    should avoid!)

    You´ll find the fasteners in specialized shops, in some of the DIY stores or sometimes in the stock of your
    employer. :Whistle:

    To prevent the fasteners from thread galling (big problem in the use of stainless steel fasteners) you should
    lubcricate all the threads with some anti-seize-paste (e.g. Molykote) before installation! So you will be able
    to screw them in without a problem and unscrew them many years later without problems as well.

    I would recommend to use the stainless steel quality: A4-70 / A4 (AISI 316). It´s more resistant to corrosion
    than the quality A2-70 / A2 (AISI 302), but only negligibly more expensive.


    A small list with some photos:

    Fixation engine cover:
    4 pcs. Metric Hex Dome Nut DIN 1587 - M6 - A4

    engine cover 1.JPG engine cover 2.JPG

    Fixation cooling unit:
    4 pcs. Metric Hexagon Head Setscrew DIN 933 - M6 x 16 – A4 - 70
    4 pcs. Metric Washer DIN 9021 – 6,4 – A4 (Outer Diameter 18 mm)
    4 pcs. Metric Spring Washer DIN 127 – A6 – A4

    fixation cooling unit.JPG

    Fixation compensating tank cooling unit:
    2 pcs. Metric Hexagon Head Setscrew DIN 933 - M6 x 20 – A4 - 70
    2 pcs. Metric Washer DIN 9021 – 6,4 – A4 (Outer Diameter 18 mm)

    fixation cooler compensation.

    Fixation electr. cover:
    1 pcs. Metric Hexagon Head Setscrew DIN 933 - M6 x 25 – A4 - 70
    1 pcs. Metric Washer DIN 9021 – 6,4 – A4 (Outer Diameter 18 mm)

    electric cover.JPG

    Exchange of two nuts placed on the side of the engine-bay front:
    2 pcs. Metric Hexagon Nut DIN 934 - M6 - A4
    2 pcs. Metric Washer DIN 125 – 6,4 – A4 (Outer Diameter 12 mm)

    nuts front side.JPG

    Fixation of battery traverse:
    2 pcs. Metric Hexagon Nut DIN 934 - M6 - A4
    2 pcs. Metric Washer DIN 9021 – 6,4 – A4 (Outer Diameter 18 mm)

    battery traverse.JPG
     
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  2. PeteMM Premium Member Club Supporter

    Northern Ireland Pete Belfast, UK
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    Awesome post is awesome!!!

    I replaced all my M6 screws/bolts with countersunk stainless ones and load washers. I will get round to the rest someday soon, along with powder coating all the parts from the engine bay.

    Just be sure to grease everything well. With stainless in contact with Mild, you can end up with quite serious dissimilar metal corrosion causing premature rusting around those areas.
     
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  3. DeviateDefiant Co-Founder Staff Team

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  4. ACC-CDI-2T Valued Contributor ★ ★ ★ ☆ ☆

    Cologne
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    Thanks! :Smile: - as I´ve just also got my "stone-chips-treated-moonsurfacelike" hood and front
    bumber painted (... my birthday present in return for his 10 years reliable work ...) I really feel
    to drive a new car at the moment ... :beer
     
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    DeviateDefiant and Ichiban like this.