restoration tips

Discussion in 'Motorcycle Technical Discussion' started by checkers, Nov 13, 2005.

  1. checkers

    checkers Guest

    My 85 shadow has the normal aluminum corrosion, pitting, discoloration, etc.
    Nothing major but I'd like to do something about it. Is there a way to restore
    things like the crankcase covers to their original brillance without removing
    them from the bike?
     
    checkers, Nov 13, 2005
    #1
    1. Advertisements

  2. Yes. Paint stripper to remove the knackered lacquer (if they were
    lacquered), and then lots of time with a polishing kit. Lots and lots of
    elbow grease. There's no easy way.
     
    The Older Gentleman, Nov 13, 2005
    #2
    1. Advertisements

  3. The short answer is 'No'. The covers have to come off for a variety of
    reasons which are detailed below.

    Most aluminum covers have a "brushed" finish. To achive that same look
    a little experimentation (read trial and error) is necessary. 800 grit
    wet/dry sandpaper is a good place to start. You might have to try a few
    grits to get the look you want. Wet sandpaper, lots os water and gobs
    of patience are a must.

    Take the covers off. Just go down to Honda and order up some
    gaskets before you start. They are usually cheap and, if your luck is
    like mine, having them on hand will guarantee that the original gaskets will
    not be destroyed upon removal of the cover. If the screws are phillips
    head, make sure you use the right sized bits and tap them in the
    screw with a small hammer. Honda loves to really torque them down.
    I have a variety of bits that I use with both my 1/4 and 3/8 drive
    ratchet. To date I have not had to drill out a boogered phillips
    screw on my ancient Honda. Make sure you have the right size
    phillips bit. Just because it seems it seems to fit doesn't mean
    it is the right size. Use the biggest phillips bit that grips it
    securely.

    Honda puts a clear coat on their aluminum pieces to give it a harder
    surface and to protect from corrosion. Removal of the clear coat is
    necessary for obvious reasons and the best way is to use paint
    remover. Paint remover around a bike is asking for trouble. One
    oopsie and there is a nice shiny spot on your tank or frame or ???.

    You could polish the aluminum to a mirror finish that looks like chrome,
    but it is a time consuming process that can be painful. Aluminum is
    quite soft and scratches easily. Even using a terry cloth to polish
    will show up when you try to get that chrome look. I don't recommend
    it.

    Here is an example of what you can get when you polish aluminum.

    http://www.mtm-online.de/en/showbild.php?id=2&table=highlights&bild=0&galerie=galerie1

    Yes, the Audi A8 has an aluminum body and frame. All I can say is
    that in the case of the polished A8, door dings are a bitch. I am not
    sure that one can miss that critter going down the road. The glare
    must be atrocious. I wonder what it is like driving into the
    sunset. :)>)

    Clear coat to use afterwards? I would try the Yamaha clear coat. It
    is tough, readily available, and a high temp formula.
    pierce
     
    R. Pierce Butler, Nov 13, 2005
    #3
  4. I've used paint stripper on casings for decades, and as long as you're
    careful (like protecting painted surfaces) there's no problem at all.
     
    The Older Gentleman, Nov 13, 2005
    #4
  5. (The Older Gentleman) wrote in
    I am just not that lucky. Something would slop somewhere and i would be
    upset.
     
    R. Pierce Butler, Nov 13, 2005
    #5
  6. checkers

    checkers Guest

    Thanks for the valuable info!!!


     
    checkers, Nov 13, 2005
    #6
  7. checkers

    checkers Guest

    Thanks for your input.


     
    checkers, Nov 13, 2005
    #7
  8. Heh. I like a man who's acutely aware of his own incompetence, and plans
    accordingly ;-)

    Did I tell you how I managed to set my speedo cable on fire?
     
    The Older Gentleman, Nov 13, 2005
    #8
  9. (The Older Gentleman) wrote in
    uhhh, no. Did I ever tell you about the time I took a cutting torch and
    cut thru a 1 1/2 inch pipe filled with hydralic oil? It was rather
    spectacular. Thankfully it wasn't under pressure.

    pierce
     
    R. Pierce Butler, Nov 14, 2005
    #9

  10. I just went thru a restore of a 81 Honda a few months ago. It sat for 15
    years. It was a long process to get that bike running right again. The
    worst part is getting rid of the rust.

    Be sure to add an inline fuel filter. A WIX 33011 would work nicely. I did
    some calcualations on what that filter will trap and what it will pass and
    what that would mean to my carbs. Anything that gets past that filter will
    not plug up the idle jets. It would be like dropping a 1 inch diameter rock
    down a 10 inch pipe.

    pierce
     
    R. Pierce Butler, Nov 14, 2005
    #10
  11. checkers

    checkers Guest

    Will I need to take any special care when removing the crankcase covers, such as
    looking for parts to become loose or "flying" away? Will I have to re-time the
    engine or replace/reset shims when I reinstall the covers? I've never done
    something like this before. I have no trouble working on cars but bikes make me
    a little nervous. TIA
     
    checkers, Nov 14, 2005
    #11

  12. As with all things it is good to consult the parts manual and the service
    manual before taking anything off. Generally speaking, there are no spring
    loaded parts under a crank cover. It is mostly boring stuff. Bikes are a
    lot like cars, just smaller.

    pierce
     
    R. Pierce Butler, Nov 14, 2005
    #12
  13. The only thing you really have to watch for is the tight phillips screws. I
    have had to use a 3/8 impact on some to break them loose. While that sounds
    pretty extreme, removing them by hand was just starting to booger up the
    slot. The impact wrench did it without fuss and saved the screw.

    pierce
     
    R. Pierce Butler, Nov 14, 2005
    #13
  14. Good point.
     
    The Older Gentleman, Nov 14, 2005
    #14
  15. The only place I use those hammer driven impact drivers is on field winding
    screws on starters and other places where I don't care what the screw looks
    like when I am done.

    pierce
     
    R. Pierce Butler, Nov 15, 2005
    #15
  16. I must be doing something wrong with my manual impact driver. I can never
    get it to work the way you guys seem to. I just grab my trusty
    Ingersoll-Rand 3/8" air impact though. No muss, no fuss, just out. Of
    course the air impact cost a little bit more than a hammer driven version.
    :)>)

    The designer of the Phillips should be praised. I have been able to take
    out phillips screws where a straight blade would have slipped and given up
    the ghost long before. The biggest problem I have is determinng what size
    phillips to use. It seems that one has to use one or two sizes bigger
    than you think you should. The biggest problem comes in when the other
    variants of the phillips. There is phillps, cross, Deck-Mate, drywall and
    more. The Japanese have their own version (JIS) which is why we have to
    pound our bits (ANSI) into the screws. Here is a better explaination of
    the problem. http://www.katun.com/products/toolsjis.html

    I used to curse phillips screws. Now that I have some good screwdrivers I
    like them better than straight bladed screws.

    pierce
     
    R. Pierce Butler, Nov 15, 2005
    #16
  17. checkers

    Ron Seiden Guest

    There's times when you need to remove a Phillips head screw, but to
    Besides, by the time you've buggered enough screws that have cold-welded
    themselves in place (why they keep putting steel screws into aluminum holes
    with no anti-seize on them is beyond me...), you really *want* to take a
    hammer to something...
    (I'm in the process of replacing all the phillips screws I can find with hex
    drive ["allen key"] bolts
     
    Ron Seiden, Nov 16, 2005
    #17
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.