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  1. #81
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    Default Re: White metal casting for restoration

    Quote Originally Posted by EtienneB View Post
    in our consumption driven society it is all too easy to stop trying after the first stuff-up and maar go and buy the part. But you kept trying and now you have a successful product. Highly highly commendable Sir!
    Dankie @EtienneB

    Interesting bit of info is that Sweden has recently banned the throwing away of appliances and equipment. You must take it to a centre where old timers show the new generation how a screwdriver works and then the owner must repair the item. Only if the old timer certifies that the item is FUBAR may it be sent for recycling.
    Last edited by mygoggie; 2021/02/09 at 08:01 AM.

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  3. #82
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    Default Re: White metal casting for restoration

    Quote Originally Posted by mygoggie View Post
    Clamp it on a CNC table and cut the installed bush to size. That is the way we decided.
    Okay so its not going to be line bored.
    Many ways to do this .It could be clamped to a faceplate and bored or clamped to a milling machine table and bored .I would think if it were bored true in a four jaw and pressed in you couldnt be far off true.
    I dont have friends with cnc . . Will you take lots of pics.
    I just love how persistent you are . You don't give up hey.
    I could fill a garage up with incomplete projects .I have been curious to know how to do this white metal story because I have a lathe we are trying to repair where we have two bushes that could use this process.

  4. #83
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    Default Re: White metal casting for restoration

    Quote Originally Posted by plunger View Post
    Okay so its not going to be line bored.
    I could fill a garage up with incomplete projects .I have been curious to know how to do this white metal story because I have a lathe we are trying to repair where we have two bushes that could use this process.
    You know where to send these two bushes now ...

  5. #84
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    Default Re: White metal casting for restoration

    Nice thread. Nice learning curve in white metal casting. Hats off for your effort. Another solution will be to keep the OEM bush and crimp a sleeve onto the slip joint to match the OEM bush.
    It is not what you buy its what you build.

  6. #85
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    Default Re: White metal casting for restoration

    Quote Originally Posted by grips View Post
    Nice thread. Nice learning curve in white metal casting. Hats off for your effort. Another solution will be to keep the OEM bush and crimp a sleeve onto the slip joint to match the OEM bush.
    Thanks. A sleeve would not work as you have only about 2mm on diameter to work with in terms of white metal thickness.

  7. #86
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    Default Re: White metal casting for restoration

    Good news! I received the installed and precision machined bearing back today from the machine shop!

    The owner said that this is one of the best casted white metal bushes he has seen.

    Pressed into place and machined to 0,0025 mm clearance on diameter.

    I am just glad it came out so well and that it is perfect fit for the new splined sleeve!







    Now onto carving the oil grooves!




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  9. #87
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    Default Re: White metal casting for restoration

    Well done!!

    Even more respect!
    "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity" - Martin Luther king Jr

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  10. #88
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    Default Re: White metal casting for restoration

    Personally I think the next stage is the scariest.
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  11. #89
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    Default Re: White metal casting for restoration

    Quote Originally Posted by 4eTouareg View Post
    Well done!!

    Even more respect!
    Thanks @4eTouareg it means a lot coming from you!

    Quote Originally Posted by jfh View Post

    Personally I think the next stage is the scariest.

    Yeah, I have given this a LOT of thought and I have practised a bit. It will have to be done by hand as a rotary bit simply gets blocked and you have little control.

    I will have to make some form of scraper and scrape the grooves out. Like we do in woodwork when you do an inlay.
    Last edited by mygoggie; 2021/02/17 at 10:09 PM.

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  13. #90
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    Default Re: White metal casting for restoration

    That looks really smart. Well done . Where do you get the white metals. I wonder if its the same stuff spoons are made of for fishing.?

  14. #91
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    Default Re: White metal casting for restoration

    Quote Originally Posted by plunger View Post
    That looks really smart. Well done . Where do you get the white metals. I wonder if its the same stuff spoons are made of for fishing.?
    No idea if the spoons are made from white metal. I doubt it as white metal contains lead.

    I got this batch from an engineering shop. The manufacturer is Fry. You can also visit engine rebuilders and ask for the old main and big end bearings and simply melt the white metal from the shell.
    Last edited by mygoggie; 2021/02/18 at 08:25 AM. Reason: I love editing .. ;)

  15. #92
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    Default Re: White metal casting for restoration

    Quote Originally Posted by mygoggie View Post
    No idea if the spoons are made from white metal. I doubt it as white metal contains lead.

    I got this batch from an engineering shop. The manufacturer is Fry. You can also visit engine rebuilders and ask for the old main and big end bearings and simply melt the white metal from the shell.
    By spoon he's referring to the shiny fishing lures.

  16. #93
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    Default Re: White metal casting for restoration

    Quote Originally Posted by mygoggie View Post
    Thanks @4eTouareg it means a lot coming from you!



    9
    Yeah, I have given this a LOT of thought and I have practised a bit. It will have to be done by hand as a rotary bit simply gets blocked and you have little control.

    I will have to make some form of scraper and scrape the grooves out. Like we do in woodwork when you do an inlay.
    Use a roundnose chisel and a hammer to cut oil galleries. Very much like engraving, but with bigger tools. Remember, bigger does not always mean better. As an appy, we spent hours, cutting keyways and oil galleries by hand. It is quite satisfying when finished.
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  17. #94
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    Default Re: White metal casting for restoration

    Quote Originally Posted by Skylark View Post
    By spoon he's referring to the shiny fishing lures.
    Yep, I know it is the shiny lure and I have never seen polished lead remain bright and shiny. For that reason I said it contains lead ... However with @plunger you never know what he feeds fish with!

  18. #95
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    Default Re: White metal casting for restoration

    Quote Originally Posted by Pieterk View Post
    Use a roundnose chisel and a hammer to cut oil galleries. Very much like engraving, but with bigger tools. Remember, bigger does not always mean better. As an appy, we spent hours, cutting keyways and oil galleries by hand. It is quite satisfying when finished.
    Dankie @Pieterk, probleem is die white metal is net sowat 1,5mm dik ... Daarom gaan ek moet skraap met diepte gids.

  19. #96
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    Default Re: White metal casting for restoration

    Not an expert, but this is what I would use.

    https://images.app.goo.gl/y8mP4Lc23HgDXR1s6
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  20. #97
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    Default Re: White metal casting for restoration

    Quote Originally Posted by Peter Connan View Post
    Not an expert, but this is what I would use.

    https://images.app.goo.gl/y8mP4Lc23HgDXR1s6
    Yep, that is what I had in mind and then the constant depth issue came to light. I will post a sketch of what Brain told me to do and which I am now building.

  21. #98
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    Default Re: White metal casting for restoration

    I am so glad you got it right although I'm quite upset that tappitalk didn't tell me this thread is cooking. I was lucky to get the link again on the lathe thread.
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  22. #99
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    Default Re: White metal casting for restoration

    Theres nothing in my workshop that can measure to 0.0025mm..I wonder if this couldnt be done in a lathe using a very course thread.Or how is rifling done in a rifle barrel.?

  23. #100
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    Default Re: White metal casting for restoration

    Quote Originally Posted by plunger View Post
    Theres nothing in my workshop that can measure to 0.0025mm..I wonder if this couldnt be done in a lathe using a very course thread.Or how is rifling done in a rifle barrel.?
    The correct way is in a lathe with a thread cutting clutch mechanism. Uncle Brian tried to explain to me how it works, which is interesting. Alas I have never seen something like this so I can only imagine what it looks like!

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