Page 2 of 4 FirstFirst 1234 LastLast
Results 16 to 30 of 52

Thread: Buggered seal or just need a clean?

  1. #16
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Struck my first wee issue. I don't have a star shaped driver (like a six pointed phillips). This means till I get one, the callipers are staying assembled.

    Today I've only managed to clean the four brake pins, they were caked in brake dust which seems to have been cooked on. I attacked this with 400 grit sandpaper and autosol and now they're looking sharp and feel smooth, rather than rough cardboard!

    It's right now I wish I had an air compressor too, might be a wee easter gift to myself

  2. #17
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Defitely sounds like a dam good clean was overdue... but new seals are still a good idea...
    When life throws you a curve ... Lean into it ...

  3. #18
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Which was first though, chicken or the egg?

    Was it dirty/buggered which caused pad to wear excessively, or has wear made it stick and then wear more...?

    Oh, also sheared the drive change thing from my socket set clean in half

  4. #19
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Well only managed to clean down one caliper today. If I can get a good deal tomorrow I'll nab an air compressor and some more tools tomorrow and pull them totally apart.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Before and after pins.jpg 
Views:	7 
Size:	76.6 KB 
ID:	125958   Click image for larger version. 

Name:	dirty caliper.jpg 
Views:	8 
Size:	110.2 KB 
ID:	125959   Click image for larger version. 

Name:	P4101164.jpg 
Views:	7 
Size:	105.8 KB 
ID:	125960   Click image for larger version. 

Name:	after a wee clean.jpg 
Views:	9 
Size:	105.6 KB 
ID:	125961  

  5. #20
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Simple quick jobs... eh !!!
    When life throws you a curve ... Lean into it ...

  6. #21
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Quote Originally Posted by stevewederell View Post
    Which was first though, chicken or the egg?

    Was it dirty/buggered which caused pad to wear excessively, or has wear made it stick and then wear more...

    As with all motorcycle "issues"... no direct cause may be proved... but merely factors in the result...
    When life throws you a curve ... Lean into it ...

  7. #22
    Join Date
    13th January 2004 - 11:00
    Bike
    Honda PC800
    Location
    Henderson -auckland
    Posts
    14,163
    Like your ollution to the piston back problem
    To see a life newly created.To watch it grow and prosper. Isn't that the greatest gift a human being can be given?

  8. #23
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Quote Originally Posted by FROSTY View Post
    Like your sollution to the piston back problem
    Just got to work with what you've got eh? Hey thanks for all your help to Frosty, very much appreciated.

    Today I need to do LH calliper and check the right, still seems to be sticking a little. Once I'm happy with all that I'll throw new fluid in, bleed bleed bleed, new pads and hope for the best.

    If I can't seem to stop the sticking I'll buy a compressor and driver and take her totally apart. Hope I don't need to do that though.

  9. #24
    Join Date
    13th January 2004 - 11:00
    Bike
    Honda PC800
    Location
    Henderson -auckland
    Posts
    14,163
    Quote Originally Posted by stevewederell View Post
    Just got to work with what you've got eh? Hey thanks for all your help to Frosty, very much appreciated.

    Today I need to do LH calliper and check the right, still seems to be sticking a little. Once I'm happy with all that I'll throw new fluid in, bleed bleed bleed, new pads and hope for the best.

    If I can't seem to stop the sticking I'll buy a compressor and driver and take her totally apart. Hope I don't need to do that though.
    you might want to focus on the one sticky piston -pump it further out and get it all shiney again
    To see a life newly created.To watch it grow and prosper. Isn't that the greatest gift a human being can be given?

  10. #25
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Quote Originally Posted by FROSTY View Post
    you might want to focus on the one sticky piston -pump it further out and get it all shiney again
    what he said...
    When life throws you a curve ... Lean into it ...

  11. #26
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Autosol good or bad for pistons?

  12. #27
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Well lets hope it's not bad.

    Decided not to pull calliper fully apart. Both callipers and all pistons nicely cleaned up, pins all shiny again, new pads in, brakes bled. Time for a beer.

    I thought I had cleaned the pistons, then I used the autosol - now they sparkle, in a manly way of course!!

    Did have a wee issue with my bleeding hose falling off and fluid pooling at bottom of tire, nearly shat when I noticed. Wasn't there for long but cleaned up and I'll just hope for the best on that one.

    No time to ride the brakes in, hopefully tomorrow before a wee ride the the CHCH crazies.

    Pic of the piston after autosol, far better.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Nice and shiny.jpg 
Views:	8 
Size:	128.5 KB 
ID:	126030  

  13. #28
    Join Date
    1st September 2007 - 21:01
    Bike
    1993 Yamaha FJ 1200
    Location
    Paradise
    Posts
    14,125
    Blog Entries
    2
    Quote Originally Posted by stevewederell View Post
    Autosol good or bad for pistons?
    Autosol is an abrasive, as long as it is all removed with a clean cloth... all should be well..... A bit of soap and water on that tyre where brake fluid touched...
    When life throws you a curve ... Lean into it ...

  14. #29
    Join Date
    10th February 2008 - 21:55
    Bike
    1998 CB 600F Hornet-Connie, RM125
    Location
    Christchurch
    Posts
    338
    Well brake lever is a lot more "solid" now, no real movement sideways from pads but they all slide up and down a little when pushed.

    Another dumb newbie question, do the top (most forward) two pistons push against the pads more than the bottom two? I noticed this when I was pumping them out to clean them. It was the same for both callipers also, so I assumed it was normal.

    Incredible day, must get out on the bike rather than fixing her

  15. #30
    Join Date
    9th May 2007 - 16:10
    Bike
    . .
    Location
    Here
    Posts
    4,513
    Well done. Mechanics is simple really. You just have to think a little.

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
  •