Piece of metal inside coolant jacket! (picture inside) 09 yzf450f

Yamaha YZ450F 2009

5 replies to this topic
  • fouledout443

Posted March 10, 2014 - 04:55 PM

#1

While inspecting the cylinder of my 09 yz450f, I turned it over upside down and a small piece of metal fell out of one of the coolant jackets. I have never heard of this before and I honestly cant think of what could come apart that would have a piece shaped like this. 

 

I just got the bike and found that it had a leaking head gasket, I can tell the cylinder bolts have been out before. 

 

Any help would be greatly appreciated!

 

 

Attached Thumbnails

  • IMG_20140310_194403_667.jpg
  • IMG_20140310_194414_955.jpg


  • DC_Excitement

Posted March 11, 2014 - 07:35 AM

#2

It kinda looks like a dowel pin for the engine side covers or maybe water pump cover? or something in that nature. Are all of the dowel pins installed where they should be ?

  • fouledout443

Posted March 11, 2014 - 07:39 AM

#3


It kinda looks like a dowel pin for the engine side covers or maybe water pump cover? or something in that nature. Are all of the dowel pins installed where they should be ?

I have no clue, got this bike Saturday, PO claimed that they had never done anything to the engine while they owned it, and that the valves had been checked just prior to them receiving it. 

 

I will check into the dowel pin


Edited by fouledout443, March 11, 2014 - 07:42 AM.


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  • DC_Excitement

Posted March 11, 2014 - 03:38 PM

#4

its defiantly not the engine side cover pins cause those are a hollow/ bigger pin. but it could be the water pump cover pin.

pin.gif



  • fouledout443

Posted March 12, 2014 - 09:31 AM

#5

its defiantly not the engine side cover pins cause those are a hollow/ bigger pin. but it could be the water pump cover pin.

 

Thanks for the quick reply, I pulled the water pump cover off last night and sure enough, only one dowel pin was in the case. 

 

I appreciate the help! 



  • DimisRR

Posted December 25, 2014 - 08:18 AM

#6

Maybe it is a piece from a needle bearing. Have you taken the whole motor apart?





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