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  1. #1
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    Default Chrome bonnet hinges

    hi
    Has anyone had chrome bonnet hinges and catch/ latch in a hq or similar .
    Good or bad idea ?
    The reason i ask is ,i have been told by a couple of platers ,zinc is s better option in the engine bay
    Whats your opinion ?experiance
    Thanks

  2. #2
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    hi
    Yes zinc is a better option . Either in the silver or gold coloured shade
    Another point of concern is in good ole ozzy the hinges are most probably just recoated used hinges . The hinge pins can be close to worn out .
    By comparo the USA similar style are new repo or reconditioned

    All forms of plating unfortunately needs to be done by experienced people with good processes .Now there is alot of cowboys in the industry within ozz .
    AAA plating and polishers are suppose to be good in Melb. I used these guys so far so good . Seem busy family owned .Just remember all coating is good when new .Its how long it lasts.

  3. #3
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    Are the hinges riveted? My GTO is a GM car like the HQ. The rivets that provide the pivot points [ & carry the tremendous load of the bonnet ] on my GTO are hardened steel for long life. I would imagine GM cars here are the same. I am not sure if the chemicals involved in chrome plating would damage/soften the steel.

  4. #4
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    Default

    Thanks for the replies .
    Why is zinc better?
    Can you 2pac clear over the zinc for durability?
    Im getting my hinges and bonnet lock done
    Thanks
    Also are the rare spares hinges and bonnet lock catches any good or are they flimsy

  5. #5
    been here .......too long Smitty2's Avatar
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    Default

    Quote Originally Posted by swampy View Post
    hi
    Yes zinc is a better option . Either in the silver or gold coloured shade
    Another point of concern is in good ole ozzy the hinges are most probably just recoated used hinges . The hinge pins can be close to worn out .
    By comparo the USA similar style are new repo or reconditioned

    All forms of plating unfortunately needs to be done by experienced people with good processes .Now there is alot of cowboys in the industry within ozz .
    AAA plating and polishers are suppose to be good in Melb. I used these guys so far so good . Seem busy family owned .Just remember all coating is good when new .Its how long it lasts.
    pretty spot on most of that....

    chrome plating causes metal fatigue known as ... hydrogen embrittlement*.
    Basically (laymans meaning)... causing an electrical current to flow thru ferrous
    metals to apply/add a dis-similar brittle metal causes the base metal to become brittle
    (and lose strength)

    Adding chrome is worst... being very brittle, adding nickel or zinc is not as bad
    being soft metals and less brittle

    Can you overcome this?... yes, by heat treating the plated part but of course
    that will damage the chrome


    *NEVER EVER chrome plate suspension parts... yes I know some do but only ever on
    a show car that never gets driven on the road
    __________________________________
    ONE OF THE Aussie V8 MODERATOR/ADMIN TEAM

    Never late in an AussieV8!
    Club circuit racing...the best fun you can have with your pants on

  6. #6
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    Hi
    Clear coating is not 1 individual process ,many different types
    Automotive clear ,,most likely needs a wet paint base coat to stick
    Powder coat clear ,,,can be milky and clear and may not suit zinc coating . Application technique is critical .
    Ceracote spray on product apparently very tough very expensive

    Ask the coating specialists eg Competition Coatings Qld

    Look into those ""billet hinges "" good looks ,,durability ???


    With chrome triple plating dipping length of time is absolute key. copper / nickle /chromium for defect filling / corrosion resistance and appearance
    More time = more coating sticks to base metal = more rust protection = longer lasting product
    Some places skip the copper WTF !!!
    Just to add to cost metal polishing and prep prior to dipping
    Chroming is real hit miss unfortunately

    Do not forget to polish that chrome to prevent moisture entry under the layers from chrome being porous and stone chips .
    Chrome needs regular maintenance wash and wax
    Last edited by swampy; 16-01-2021 at 11:08 PM.

  7. #7
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    Hi
    Thank you for the great info .
    I had looked at the billet hinges ,they are on sale atm"proflow," $560.
    Are the reproduction hinges and locks any good or are they made with cheap metal,?
    Maybe ill buy those billet ones and zinc the locks
    👍👍👍

  8. #8
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    hi
    Not aware of any re-pop hinges or locks .
    Locks, door or bonnet??
    Zinc the bonnet striker and lock and apply zinc white coloured grease .

  9. #9
    casual poster Willie's Avatar
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    I got my billet hinges from Bliss. They are Australian made and are excellent quality. They make aligning the bonnet a breeze compared to the stock ones.

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