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Cam gears, i got them powder coated, made mistake

Posted by syndr0me, Oct 18, 2019

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  1. syndr0me

    syndr0me Proven Member

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    But i never mentionned to mask off the ribs. So now the whole thing is coated.

    Will this be an issue? I'm worried abount tolerane issues nows. Height from the powder coat added from on the top and bottom of the ribs. And potential belt slippage.

    Worst comes to worst, i can just wire wheel those out.

    Just want an opinion

    Vq4Byfu.jpg
     
    Last edited: Oct 18, 2019
  2. JPenny

    JPenny Proven Member

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    Although a good powder coat job is very durable, it honestly turns my stomach to think of any chance of the coating coming off changing belt tightness or belt itself slipping on the coating. Sorry I have no actual proof but I feel like it's worth putting in the effort to properly clean where the belt touches.
    Thank you for your time, Jason Penny
     

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  3. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    I would agree with @JPenny. I don't know how the belt might wear on the coating and although it is just a small amount of coating, if it wears off, and I am sure it probably will in time, it will change the tension slightly on the belt. IDT it will be more than the tensioner can take up, but I would clean the grooves myself, carefully, so you still can enjoy the powder coat gears. If you had a head, put cams on those and put the cams in then see if a cam gear holding tool will slip into the gears, still. That will tell you something about how thick it is.
     

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  4. ErikTande

    ErikTande Proven Member

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    ^^ What he said. I have no actual info that says you can't run it like that, but I sure as hell wouldn't. I'd remove the coating from the contact area to be safe.
     

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  5. b00stedtalon2

    b00stedtalon2 Proven Member

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    I would not run those either.
     

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  6. syndr0me

    syndr0me Proven Member

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    Ok guys. Noted. Thanks.

    I'll wire wheel the ribs cleans.
     
    steve likes this.
  7. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    You will feel better knowing that it won't effect anything. :thumb:
    Hope they clean up without harming the powder coat, so take your time.
     

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  8. rabenne

    rabenne Proven Member

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    Use as soft of a wire wheel as possible (probably brass). The surface finish on the gear teeth will be changed quite a bit if you use a stainless wire wheel and go to town on it...

    Your absolute best bet would be to chemically strip them and re-powder them, but I understand that would be pretty expensive. Just be careful and try not to scratch up the metal surface under the powder when removing it.
     

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  9. donniekak

    donniekak DSM Wiseman

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    As the powder coat wears off it’ll be a gritty powder eating the belt. Just get some stock gears.
     

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  10. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Not if he uses something very mild to remove the coating from those parts
     

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  11. syndr0me

    syndr0me Proven Member

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    Originally I zinc plated, and yellow chromated myself. But it kept bubbling and peeling off. Must be a steel alloy that's not playing nice. After doing it half a dozen times, I gave up.


    26hpQnH.jpg

    The gears where only $25 CAD a piece to powder cost so it wasn't bad. But if it was masked it would of saved me a mountain of trouble. The coating is tough as nails.
     
    Last edited: Oct 18, 2019
  12. donniekak

    donniekak DSM Wiseman

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    I would buy another set for $20 before I spent hours cleaning off powdercoat.
     

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  13. syndr0me

    syndr0me Proven Member

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    $20???

    Let me know where because cheapest I found was $150 CAD shipped.

    MD170799 correct?
     
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  14. rabenne

    rabenne Proven Member

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    Aircraft stripper did awesome removing powdercoat from parts for me in the past. The stuff from ACE hardware with the threat of death on the front label.

    Problem is, even the gel style would be too tricky to contain and you would likely not be able to keep power looking clean on the faces on them.

    I think you may be best off just stripping them and having them coated again with proper masking.

    you could certainly find a used set from a member here for say $50 shipped. I am pretty sure someone would even take much less. Stock cam gears aren't worth much at all.

    car in you profile pic is sexy AF. Why not other pics? Vehicle profile?
     
    Last edited by a moderator: Oct 21, 2019

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  15. donniekak

    donniekak DSM Wiseman

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    They removed the methylene chloride.
     

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  16. rabenne

    rabenne Proven Member

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    DANG! That's no bueno!
     

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  17. ist dwa

    ist dwa Proven Member

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    A. Buy another set of gears for nothing and redo them right.

    B. Run them, powder coating is super hard you'll never get the ribs clean and it will take foooooooooooorever. Honestly my money would be on the coating VS the belt. Maybe over like 60K miles it might wear them. I would probably just run them. If you notice they do clean off your set, the tensioner will take up the slack for a degree or two of cam timing which won't hurt a thing, shoot people run BC cams and those things are junk and waaay off. If the coating does rub off just reset the tension on the tensioner again.

    That gold with the wrinkle red will look bad ass. More than anything you will have to redrill the cam alignment hole to get the camshaft peg over the cam gear.
     
  18. rabenne

    rabenne Proven Member

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    You may be fine with the tiny dimensional change to the teeth of the gears depending on thickness, but do you want to take a chance of making it easier for your engine to skip a tooth and have a piston/valve party?
     

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  19. syndr0me

    syndr0me Proven Member

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    Well, worst came to worst. I tossed them in the trash. I actually found a spare set laying in my parts bin, although, it looks gouged.

    Opinions?

    SzlJA6C.jpg

    Thanks
     
  20. rabenne

    rabenne Proven Member

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    strip the powder off the ones you threw away... with chemical strippers it shouldn't be difficult
     

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  21. syndr0me

    syndr0me Proven Member

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    I've been here long enough to know everyones answer. I ordered a new set off extremePSI

    Pretty sure they've been sand blasted. Plus the wire wheeling I tried on it was eating it away. I'm just done with them. I've wasted to much time on these gears, I'm extremely annoyed. It's set me back 3+ weeks.

    Hopefully I'll get some nice shiny new one in the mail this week and I'll have peace of mind.

    Sucks because I've been gunhoe on this red/gold theme. Matches my paint and rims.

    I've painstakingly yellow zinc chromated a lot of my bolts for this. The cam gears were kind of a "showcase" piece. Super bummed out guys.
     
    Last edited: Oct 20, 2019
  22. rabenne

    rabenne Proven Member

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    I hear that. But why dont you add more pics of that car? Do you post it somewhere else?
     

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  23. syndr0me

    syndr0me Proven Member

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    I do not. I really should.

    heres a little preview. I might go get the new gears coated... but properly this time.

    5M3wlQY.jpg

    Krq4gxi.jpg

    9JTPaf4.jpg

    Every nut, bolt and bracket has been "polished" and zinc plated. Either blue or yellow.

    **Also, dont worry about the plugs. Its just a quick mock up. Everything has been in pieces for the past 3 months. Tonight is the first time i actually see everything together. I must say, i am quite pleased with the results.
     
    Last edited: Oct 20, 2019
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  24. Cherry

    Cherry Proven Member

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    You could get the VHT SP404, its a pretty nice gold. Tape it off and spray it yourself and then bake it. I might do that with my fuel rail while I'm waiting on my battery to come in. Just trying to figure out my color, either the stock color that it was which was one of the silvers, or Millennium Jade. Definitely have to redo my valve cover, the Duplicolor Metalcast Purple isnt consistent at all.

    I dont know if its the gold you are looking for but its an option.
     

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  25. syndr0me

    syndr0me Proven Member

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    Thanks. I'm not super picky on having the exact colors i want. but i do like that VHT option. might strongly consider it. The new gears were 150 CAD shipped. Plus 50$ for a powder coat job again... it becomes an expensive mistake. Although a can of VHT like that is also aroudn 20 CAD with tax. So for the extra 30 bucks... might just get them powered.

    Also, since they are brand new gears, the finish will be acceptable to me.

    I'll make a decision this week when i reveive in the mail.
     

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