KX Riders

Maintenance & Technical => KX500 Original => Topic started by: Rd on January 03, 2010, 04:15:47 AM

Title: Take a look at this case
Post by: Rd on January 03, 2010, 04:15:47 AM
I split the cases on my recently purchased 90 K5 and found this crack. You can't see any crack from the outside just a small impact mark (rock?).Planning on taking it to a good tig welder next week and have him look at it. What do you guys think?
Sorry for the lousy pics.
(http://img.photobucket.com/albums/v210/makoman/DSCN0692-1.jpg)

(http://img.photobucket.com/albums/v210/makoman/DSCN0693-1.jpg)
Title: Re: Take a look at this case
Post by: blueoval on January 03, 2010, 04:28:06 AM
What is at the 10 to 11 O'clock position on the case? 
Title: Re: Take a look at this case
Post by: Rd on January 03, 2010, 04:49:21 AM
That is just carbon goo that had not been wiped off yet.
Title: Re: Take a look at this case
Post by: Polar-Bus on January 03, 2010, 07:22:37 AM
just a small impact mark (rock?).Planning on taking it to a good tig welder next week and have him look at it. What do you guys think?



Or more likely someone dropped a piston pin circlip down in the case, and just put the engine back together...
Title: Re: Take a look at this case
Post by: Rd on January 03, 2010, 10:19:35 AM
Quote
Or more likely someone dropped a piston pin circlip down in the case, and just put the engine back together...

That would not suprise me. You think it can be welded succesfully?
Title: Re: Take a look at this case
Post by: Larry Wiechman on January 03, 2010, 10:52:55 AM

 That's an easy fix. Caution your welder that sink (A low spot caused by the metal cooling and shrinking) is unacceptable on the sealing surface. It'll be as good as new.
 
Larry
Title: Re: Take a look at this case
Post by: Rd on January 04, 2010, 11:43:15 AM
Thanks Larry
That is good news. No sink.