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does this meet criteria for performance

Discussion in 'Performance' started by roverbay, Mar 22, 2013.

  1. roverbay

    roverbay Active Member

    Messages:
    840
    Location:
    nambour
    Thanks David failed science. what about solder between them & lead wiped finish on top or powdercoated
     
  2. Barry

    Barry Well-Known Member

    Messages:
    4,932
    Location:
    Abbotsford NSW
    RB
    In pipework you need to isolate between copper and steel with a rubber gasket or something similar.
    You can’t burn through the protective coating with braze etc.
    Ideally you need a steel rod welded in
     
  3. cbus

    cbus Well-Known Member

    Messages:
    12,843
    Location:
    sunshine coast
    I wouldn't worry.
    The steel needs to be tinned first to accept the leading.
    Copper doesn't react with lead.
    Plus there's no electrolyte as long as the inside of tube is dry and you flush out the acid flux very well.

    I would drill two holes in the tube to take a screw in air coupling that you can connect garden hose to and thoroughly flush.
    Some bicarb would be a bonus.
    Hit it with an aerosol of tectyl or lanolin if still concerned .
    Plug holes with a copper cut and solder.
    Or countersink and devcon.

    Outside will be painted so no circuit there.
     
  4. David H

    David H Well-Known Member

    Messages:
    6,128
    Location:
    newcastle
    Not according to all the chemists that precede us. They're close so it's not an immediate bad reaction but it will always be a reaction point for the mass of metal unless isolated by whatever means (paint,rubber, buffer etc).
    Cheers
     
  5. cbus

    cbus Well-Known Member

    Messages:
    12,843
    Location:
    sunshine coast
    Reality shows it doesn't in the conditions that will exist in this application.
    In theory lead and bronze would react with steel but no such problem exists when car bodies are lead filled or brazed as long as fluxes are removed.
    No electrolyte
    No problem.
    Lead/ tin solder has no problems on copper pipes in long term application.
     
  6. roverbay

    roverbay Active Member

    Messages:
    840
    Location:
    nambour
    Ok let me ask as I'm out of my depth with all this info. If I tin & solder the steel band the tin & solder the copper ring to it should it be ok once painted to prevent moisture. I have been watching Dean Jefferies lead wiping to get an idea on hot to finish it off.
     
  7. cbus

    cbus Well-Known Member

    Messages:
    12,843
    Location:
    sunshine coast
    Absolutely.

    Just ensure you wash of any flux when finished soldering.
     
  8. roverbay

    roverbay Active Member

    Messages:
    840
    Location:
    nambour
    CBUS get your bum over here & show me the right way to do it Please
     
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  9. cbus

    cbus Well-Known Member

    Messages:
    12,843
    Location:
    sunshine coast
    I suggested devcon so don't ask me :D

    Utube is your friend if you insist on trying outdated methods.

    Clean metals, tin properly before attempting anything further.
    The rest is pretty straightforward as long as you have the right gear and don't try to skimp.

    Probably cheaper to braze the join then bog it.
     
  10. roverbay

    roverbay Active Member

    Messages:
    840
    Location:
    nambour
    kombi is on 4 wheels 1st time in 5 years. lift indicator the milk crate. I started the mods on the doors today to fit 1 piece glass. I have new winder mecanisms with BMW electric motors i had to move the set up forward to centre the lift plate to the centre to stop the glass going up lopsided. I dump the idea of the flaired rear guards I made up. Now i will bolt the cut down rear panel To mount it higher the original. The panel will bolt on ALA SLR torana style with rivnuts & cup head bolts.

    the 1 piece glass.
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    centred mechanism note bolt hloes rear of mounting
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    the plate for motor I have to make a better one
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    excuse the mess I only clean up shed on friday. as I don't grind drill or hammer on weekends.
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    lift
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    Last edited: Oct 7, 2020
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  11. gazman

    gazman Well-Known Member

    Messages:
    1,853
    Location:
    Perth WA
    We have a set of those bmw window motors for the lowlight (haven't fitted yet), will be interested to see how they go...
     
    roverbay likes this.
  12. roverbay

    roverbay Active Member

    Messages:
    840
    Location:
    nambour
    Greg Van Zelst doing the repairs & Camoflauge paint on ECLECTIC.[​IMG]





    [​IMG]
    [​IMG] [​IMG]
     
    Last edited: Oct 23, 2020 at 8:17 PM
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