Second hand cam followers

Discussion in 'Airheads' started by ME 109, Jan 7, 2013.

  1. disston

    disston ShadeTreeExpert

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    I think "Hard Chrome" plating is not like the Chrome we usually think of. I don't think it is shinny. I'll try to find out some more about this.

    I have seen pictures of the base of lifters flaking. I've not had them go that way on my bike but I have replaced lifters that were pitted.
    #21
  2. Airhead Wrangler

    Airhead Wrangler Long timer

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    Hard chrome definitely is shiny. It's the same chrome you see on fork tubes, shock shafts, hydraulic rams, etc. Whether or not they use it on the lifters I'm not positive on. The fact that the lifter faces don't seem to flash rust at all like you'd expect a very hard steel alloy to do, indicates to me that they probably are, but again I can't say for sure. The fact that they aren't mirror finish doesn't mean they aren't chromed, it just means that if they are they had some sort of honing or grinding done on them after plating. The lifters (on the sides) and cams also seem to be covered in some sort of dark phosphate-like coating to prevent corrosion. Can anyone say what that is? It's almost like parkerizing. Just using some modern wear coatings on the cam and followers has the potential to eliminate the need for using oil with higher than 'normal' amounts of ZDDP which to me is kind of a cool prospect.
    #22
  3. disston

    disston ShadeTreeExpert

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    It is that Parkerized looking stuff I'm thinking of. I have a couple of NOS lifters that have this grey coating.
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  4. Airhead Wrangler

    Airhead Wrangler Long timer

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    Some quick googling said that this phosphate coating is added to lifters to aid in break-in and helps prevent galling. It will also hold oil on the lifter during storage and keep it from corroding.
    #24
  5. disston

    disston ShadeTreeExpert

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    I've got a new camera and going to be able to put up a picture now and again. I'm hoping I can get better than this even but this looks pretty good I think for first attempts.

    [​IMG]

    [​IMG]

    These are brand new, NOS. The label on the tag with these has part # 11 32 1 262 638 so they are a current part. Max lists this part for $63.41 ea. Notice the Phosphorus coating. When held base to base the convex surface is noticed but it is a very slight bend to the base. Not noticeable to the eyes.

    Well I don't think this really adds much if anything to the discussion but I just had to try out my new camera and I had a couple of the lifters to photograph.
    #25
  6. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    Cameras and othe rnew playtoys are always fun.

    Are there any pics of your R90 online? I don't recall seeing any...

    --Bill
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  7. disston

    disston ShadeTreeExpert

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    So far I have put a single pic in the "Post your Airhead pics" thread. I'll try to take a few shoots of stuff I fix. Since my bike is not one of the prettier types around I'm reluctant to do Glamor shots .

    http://advrider.com/forums/showthread.php?t=51879&page=222

    The photo of the lifter didn't come out as good as I would like. I guess I have to spend more than a hundred dollars on a camera to get much better quality.

    We never did decide or find out if BMW Airhead lifters have a hard Chrome coating on the base did we?
    #27
  8. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    Aw, that bike has... character. +1.

    You don't necessarily need an expensive camera to do good photos. For photographing parts, etc, you need a camera with close-up ("macro") capabilities. You create the photo, the camer is just a tool.

    Some of my best photos have been done with a Holga camera (Google for info)...

    --Bill
    #28
  9. disston

    disston ShadeTreeExpert

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    Is there a place on Adv Rider or somewhere else I can go and learn how to do better with my camera? I'm trying to make sense of the manual and the language is mostly gibberish. The camera is a Canon SX150 IS. I found references on the web that this camera would do good for Macro. I ended up getting it because it was only $100 at Target.

    This is my best Macro foto so far I think;

    [​IMG]

    That is much better than the lifter shots I took earlier. I think the main difference between the two is just lighting.
    #29
  10. Bill Harris

    Bill Harris Confirmed Curmudgeon

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    Best way to learn is to get a book on basic photography and start taking pictures. Or take an Intro Course at your ocal community college. Digital is good because you get instant results on whether th ephoto took or notm and yiu dont spend a LOT of money developing and printing your mistakes. I've been doing photography since I was a kid and it's second nature to me.

    Maybe some of us can start a thread on "Airhead Photography 101" here... Benthic, are you reading??

    --Bill


    PS-- I have a slow I'Net connection today and I just saw your cylinder picture. It's great. Natural light (instead of flash) is always good, IMO. Keep practicing....
    #30
  11. disston

    disston ShadeTreeExpert

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    I think a camera section, maybe just a thread somewhere would be a good idea. We could have it in Airheads for a while just by titling it "How to take a picture of your Airhead" or something. There are many threads that have pictures in them but we could always use another and this time make the theme How To. I'm thinking tho that it belongs under another heading. But I'll try to start it here and see what happens. Gonna take a few more shots and start this in a coiple of days, I think I will. What do you think?

    They can always move it to the basement. I've made several appearances in Head Explodey already.

    PS; Off to work right now.
    #31