Page 2 of 6 FirstFirst 1234 ... LastLast
Results 16 to 30 of 86

Thread: Cracked swing-arm?

  1. #16
    Join Date
    24th July 2006 - 11:53
    Bike
    KTM 1290 SAR
    Location
    Wgtn
    Posts
    5,541
    Quote Originally Posted by skippa1 View Post
    The factory sticks the whole frame together with weld, why wouldn't you weld it?
    Because welding it anneals it, some alloys to about the consistency of chewing gum. The factory also heat treats the finished assembly.

    The shop guys should be able to sort that if they know what they're doing though.
    Go soothingly on the grease mud, as there lurks the skid demon

  2. #17
    Join Date
    6th January 2009 - 12:17
    Bike
    Dont have one now
    Location
    New Plymouth
    Posts
    1,710
    Quote Originally Posted by Ocean1 View Post
    Because welding it anneals it, some alloys to about the consistency of chewing gum. The factory also heat treats the finished assembly.

    The shop guys should be able to sort that if they know what they're doing though.
    In other words.....the shop could weld it

  3. #18
    Join Date
    24th July 2006 - 11:53
    Bike
    KTM 1290 SAR
    Location
    Wgtn
    Posts
    5,541
    Quote Originally Posted by skippa1 View Post
    In other words.....the shop could weld it
    No doubt. And if they know what alloy it is they can probably even temper it.
    Go soothingly on the grease mud, as there lurks the skid demon

  4. #19
    Join Date
    23rd October 2013 - 18:30
    Bike
    72 Kawasaki A7, 05 Kawasaki W650
    Location
    Tauranga
    Posts
    1,289
    Someone else pointed out that these two marks could be related:
    http://i.imgur.com/3VkNjEU.jpg

    Neither the marks nor the crack were there before the bike went in for a chain - could this have been caused by the mechanic, or am I barking up the wrong tree?

  5. #20
    Join Date
    6th January 2009 - 12:17
    Bike
    Dont have one now
    Location
    New Plymouth
    Posts
    1,710
    Quote Originally Posted by Mike.Gayner View Post
    Someone else pointed out that these two marks could be related:
    http://i.imgur.com/3VkNjEU.jpg

    Neither the marks nor the crack were there before the bike went in for a chain - could this have been caused by the mechanic, or am I barking up the wrong tree?
    My view, barking up wrong tree

  6. #21
    Join Date
    17th April 2006 - 05:39
    Bike
    Various things
    Location
    Wellington
    Posts
    14,429
    Quote Originally Posted by Mike.Gayner View Post
    Someone else pointed out that these two marks could be related:
    http://i.imgur.com/3VkNjEU.jpg

    Neither the marks nor the crack were there before the bike went in for a chain - could this have been caused by the mechanic, or am I barking up the wrong tree?
    I'm willing to bet you wouldn't have noticed those marks on their own without the crack.

  7. #22
    Join Date
    20th June 2011 - 20:27
    Bike
    Dog Rooter, 1290 SDR
    Location
    Marton
    Posts
    9,851
    Quote Originally Posted by Ocean1 View Post
    Because welding it anneals it, some alloys to about the consistency of chewing gum. The factory also heat treats the finished assembly.

    The shop guys should be able to sort that if they know what they're doing though.
    Well it will depend on what its made from and if its heat treated. I believe some self anneal with time but others have to be baked.

  8. #23
    Join Date
    23rd October 2013 - 18:30
    Bike
    72 Kawasaki A7, 05 Kawasaki W650
    Location
    Tauranga
    Posts
    1,289
    Quote Originally Posted by Crasherfromwayback View Post
    I'm willing to bet you wouldn't have noticed those marks on their own without the crack.
    I have photos of the bike from 2 days ago that show the marks aren't there.

  9. #24
    Join Date
    24th July 2006 - 11:53
    Bike
    KTM 1290 SAR
    Location
    Wgtn
    Posts
    5,541
    Quote Originally Posted by nzspokes View Post
    Well it will depend on what its made from and if its heat treated. I believe some self anneal with time but others have to be baked.
    Yup, and some work harden.

    And until you know what it is you won't know how to treat it.
    Go soothingly on the grease mud, as there lurks the skid demon

  10. #25
    Join Date
    17th April 2006 - 05:39
    Bike
    Various things
    Location
    Wellington
    Posts
    14,429
    Quote Originally Posted by Mike.Gayner View Post
    I have photos of the bike from 2 days ago that show the marks aren't there.
    Let's see 'em then.

  11. #26
    Join Date
    14th July 2006 - 21:39
    Bike
    2015, Ducati Streetfighter
    Location
    Christchurch
    Posts
    9,081
    Blog Entries
    8
    Barking up the wrong tree - I fail to see how any mechanic could do that to your swingarm. Probably just some Suzuki thing. Weld it up and have some race lift bobbins attached while you are at it

    Search Suzy forums - probably happened before.


    I'd see it as a positive and e-mail Spondon Engineering in England and aske they make me a spiffy new one!

  12. #27
    Join Date
    23rd October 2013 - 18:30
    Bike
    72 Kawasaki A7, 05 Kawasaki W650
    Location
    Tauranga
    Posts
    1,289
    Cheers, yeah probably had nothing to do with the mechanic, would have been nice to have someone to blame

    Here's a picture from a few days earlier but it's only from my phone so you can't really see anything. I have some better pictures somewhere around.

    http://i.imgur.com/L9xPLKg.jpg

    edit: To be clear I'm not blaming my mechanic at all for this - I have a lot of trust in him and I was just in a shit mood hoping this was someone else's fault.

  13. #28
    Join Date
    23rd October 2013 - 18:30
    Bike
    72 Kawasaki A7, 05 Kawasaki W650
    Location
    Tauranga
    Posts
    1,289
    BTW what's the going rate for a used swingarm if I should find one? They don't seem to fetch much on Trademe, but hard to tell when you're being model-specific.

  14. #29
    Join Date
    14th July 2006 - 21:39
    Bike
    2015, Ducati Streetfighter
    Location
    Christchurch
    Posts
    9,081
    Blog Entries
    8
    Trademe $100-$200, higher from a bike breaker usually. Depends on the bike and desirability of the swingarm. I sold a old school alloy GSX1100 swingarm I originally purchased as a upgrade for a old Kawasaki for good coin - lots of bidders as it is a popular one for older Kawas and Suzukis.

    Teapot swingarm should be pretty cheap. Welding probably cheaper!

  15. #30
    Join Date
    18th October 2007 - 08:20
    Bike
    1970 Vespa ss90
    Location
    Schδrding
    Posts
    1,831
    Welding it wont be a problem, and totally acceptable but just be aware that it shouldn't be able to pass a WOF afterwards (assuming the tester follows the law), it's a major load bearing suspension component, and as such is it allowed to be modified, someone could argue semantics about this, but it's not (as far as the law is concerned) legal.

    It would have to be crack tested to pass MOT's...... Hopefully a welder can arrange this, but it has to come off the bike to happen

    Most guys would likely pass it... Im just playing devils advocate... It will make it harder to sell later too.

    That said, in my opinion, it's totally safe.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •