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YZ426F HELP

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ste.cameron25
Nova Slayer



Joined: 05 Aug 2013
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PostPosted: 18:58 - 02 Aug 2014    Post subject: YZ426F HELP Reply with quote
Hello it's been a while since I been here hope everyone well! Anyway I got myself a yz426 head for cheap only exhaust valve guide snapped how does one take it out to replace a new one thanks in advance image blow
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gavcarter
Could Be A Chat Bot



Joined: 28 Mar 2009
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PostPosted: 19:20 - 02 Aug 2014    Post subject: Reply with quote
Lots of heat ( evenly - so it would have to be an oven ) and a big press - 5ton at least .

Oh it also has to be pushed out perfectly straight, if it goes off to one side the new on wont fit properly.

Probably better off getting it done by an engine rebuilder
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ste.cameron25
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Joined: 05 Aug 2013
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PostPosted: 20:52 - 06 Aug 2014    Post subject: Reply with quote
Wasn't has hard as you said put cylinder in oven on 200 degrees for half hour used a long bolt bit smaller then the valve slipped out nicely Smileu
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