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[Astra] How2 to fix Astra / Vectra / Zafira wiper motor parking fault

Discussion in 'All Model Vauxhall / Opel / GM / Holden How2' started by pippasdog, Jun 15, 2008.

  1. pippasdog

    pippasdog New Member

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    Location:
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    [​IMG] how to repair wiper motor parking problem
    firstly big thanks to adder-noir (see his post regarding same ) if you can solder , can get your hands on a double 13amp socket then it is really simple i fixed mine today no problem 1. remove motor assembly 4x 8mm nuts unplug electrics .put assembly on bench below the motor housing you will see 5x rivets, 1 x torx screw ( holding the cable clamp )their on the motor gearbox plate( you can see a plastic cover with copper strips ) .the rivets are of the solid aluminium type anyway drill out the 5 rivets (4mm bit )drill right through casing for new rivet unscrew torx cable clamp prise off metal cover to gearbox . you will now see the copper pickups the parking one will be smaller as it has worn away . how to repair the pickup , what you now need to do is get your double socket remove the back cover smash it if need be .you want one of the copper strips off it , get a lengh of the copper fold it back on it self ( about a quarter of an inch ) in the vice so that it is double the thickness .( if you look at the pickup thats ok on the end of it its got a thicker contact point ) put your piece of copper in the vice and file it (copper is soft ) to roughly the same shape .doesnt need to be exact then clean broken pickup in gearbox with a piece of emery paper then put some soldering flux on it then tin it (melt a bit of solder along it ) then tin your new copper pickup on the mating side (opposite side to the pickup ) hold in place i used tweezers put your soldering iron on it to solder the two together let it harden remove tweezers . reassemble rivet plate back using 5x 4mm rivets or nut and bolt guarantee will work sounds difficult i know. its not really is simple diff to explain tho , but if your going to replace motor anyway what have you got to loose ( except about £40 and time it takes to get to scrappy ) took me about an hour and i actually enjoyed doing it . thanks again to adder-noir his idea
    [​IMG] [​IMG]
     
  2. caveman1983

    caveman1983 Member

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    Location:
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    Drives:
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    yea right!

    i just tried all that gettin into it and the concept is all good but could i get those two bits of copper to solder together could i hell.
     
  3. cavwebmaster

    cavwebmaster CavWeb/VxON Forums Admin & Founder Staff / Administrator VxON Club Member

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    Location:
    Nottingham
    Drives:
    Modified Astra H Sporthatch 150 CDTI
    I followed Wills instructions and took a few pictures of the process.

    first pics shows the worn parking electrode (right) after id drilled the rivets out and prized the back off.
    [​IMG]

    I used some fine grade sandpaper to clean back the electrode, tinned both the end of the electrode and the piece of copper I cut from the plug and made a layman's joint. You can see a ball oif solder as thats what was pushed out when both pieces melted together but i flattened it down before i put the back back on.
    [​IMG]

    When i drilled out the rivets i pushed straight through and bought some 2.5mm nuts and bolts from maplins to join the back plate to the main unit.
    [​IMG]

    Works perfectly thanx Will ;)
     

    Attached Files:

    badmuver likes this.
  4. Dom

    Dom Well-Known Member

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    For the soldering part you need to do the following for a decent joint :

    Sand both parts of copper to be soldered - solder will NOT flow properly into a dirty joint.
    Use a high wattage soldering iron or a gas powered one. 30 Watts will be the absolute bare minimum, 60 watts or above will make a much better job.

    Heat both parts of the copper before attempting to feed in the solder.

    Use solder with Lead and Flux in it (60/40) - lead free solder is poop.

    Feed in the solder. It should flow. If it doesn't then you've still got dirty copper or the joints are not hot enough. If you get balls of solder on the joint then its not hot enough.
     
  5. 300wsm

    300wsm New Member

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    Thanks guys just done the one on my 99 Astra Van.

    Couple of points dont worry if the gear comes out of the case just put it back in, then make sure you connect the power and switch the ignition on before connecting the arm.

    Self tappers work well for the case

    300wsm
     
  6. spookyman60

    spookyman60 VxON's local spooky lurker

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    Location:
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    just done this on my astra works a treat, used a gas soldering iron for heat and cleaned the contacts with sand paper or a nail file works good aswell
     
  7. astra1976

    astra1976 New Member

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    great how2 cheers
     
  8. Chris Buckle

    Chris Buckle Member

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    Brilliant piece of engineering! However, I robbed a few contacts off an old relay. That means the motors at my local scrap yards all have this problem! Antway many thanks.
     
  9. Branny361

    Branny361 Well-Known Member

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    Location:
    birkenhead
    Drives:
    saab 93 turbo
    good money saving "how to "
     
  10. m4rkym4rk24

    m4rkym4rk24 24v Power

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    Location:
    Hamilton Scotland
    nice one will try that tomorrow little to wet today
     

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