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Main Area => General GS500 Discussion => Topic started by: EDub on April 02, 2010, 12:19:21 PM

Title: Head is stuck.
Post by: EDub on April 02, 2010, 12:19:21 PM
Got the cams out, but i cant get the head off. I tryed a hammer and a block of wood.  Didn't work.  I dont want to pry it.  I fell like I would break the fins.  Anyone got some tips on getting it off?

Thx,
Kevin
Title: Re: Head is stuck.
Post by: sledge on April 02, 2010, 01:02:08 PM
Bit late now......but next time......before you start the stripdown.....take 1 turn off each of the head nuts/bolts, lift the plug caps and give it a burst on the starter. You will find compression frees the head from the block. Its never failed for me....on any bike  :thumb:

You could put the cams back in, time it up and give it a go.
Title: Re: Head is stuck.
Post by: gsJack on April 02, 2010, 01:18:41 PM
Did you get that bolt on the front center that goes upwards from the cyls into the head?  I broke head loose with a hammer and wood block taking care not to bust off any fins.
Title: Re: Head is stuck.
Post by: badguy on April 02, 2010, 06:17:22 PM
Quote from: gsJack on April 02, 2010, 01:18:41 PM
Did you get that bolt on the front center that goes upwards from the cyls into the head?  I broke head loose with a hammer and wood block taking care not to bust off any fins.

Exactly what I was thinking.  I used this bolt to break the head loose (backed it out some, then tapped it with a hammer) and promptly forgot to remove it before trying to pull the head off, haha.
Title: Re: Head is stuck.
Post by: EDub on April 03, 2010, 01:30:36 PM
Son of biscuit.  Completely missed that one. >:(  I'll take that out tonight see if i can free her up.
Thx for the info.

Kevin
Title: Re: Head is stuck.
Post by: EDub on April 03, 2010, 02:03:37 PM
Got the head off.  The good news... the cylinders look great... the bad news... the right side exhaust valve is TOAST... literally.
photos to come.
Title: Re: Head is stuck.
Post by: EDub on April 03, 2010, 03:15:51 PM
I'll take that valve prepared well done.
(http://gstwins.com/photogallery/albums/userpics/12024/normal_IMG_0222.jpg)

shining a flashlight up through the exhaust port.
(http://gstwins.com/photogallery/albums/userpics/12024/normal_IMG_0226.jpg.jpg)





Guess i got some work to do, heh.  So the reason this valve got toasted is because I didnt have the exhaust seal on this cylinder.  That is the seal between the exhaust header and the block.  Lesson learned.
Title: Re: Head is stuck.
Post by: saxman on April 03, 2010, 03:36:02 PM
Looks like you have the rare light weight racing valves complete with speed holes.