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  #1  
Old 12th June 2009
purpony's Avatar
purpony purpony is offline
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Sportster/Buell Model: Buell X1 Lightning
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Default head gasket issues on X1

I have a 99 X1 and last fall my front head gasket started leaking. I just removed the head and jug and installed new base gasket, head gasket, and all the other gaskets that go along with it.

my issue is the head gasket and dowel o-rings. The manual and everyone i talk to says the o-rings are for alignment! alignment of what? The -oring does not fit into the head gasket hole and when installed the head gasket sits ON TOP of the o-ring. This is what it looked like when i removed the old head gasket as well. I torqued the head down in the correct order to the torque spec and i could see light right through the head gasket. I then unloosened it like the manual says and then retorqued it. All looked good. Put a plug in it and turned it over and the head gasket leaks more then it ever did. Whats going on? I have read that the cosmetic gaskets you dont need the o-rings. any thoughts or input?

Also, is the X1 engine classified as an EVO sportster engine as far as gaskets and such go?

thanks
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  #2  
Old 13th June 2009
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williamv1203 williamv1203 is offline
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Default

First off, Welcome to the forum.

The o-rings, if included with a gasket set are for alignment of the head gasket. If there is no room for them when the head gaskets are installed, the gasket is a non o-ring type.
Not sure why it would be leaking more than it was before. Unless it was installed with the o-rings and they're not needed.
All I've got for now.
As you can't post pics yet, can you provide a link to some?
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  #3  
Old 13th June 2009
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misterT misterT is offline
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Default

Welcome to the forum! The Cometic head gaskets and all others that are laminated steel or solid copper do not use the O rings. Using O rings with these type of head gaskets will cause a massive leak. The other possability is that your head is warped, which would only happen if it was overheated quite a bit. You can half @ss check this by placing a straight edge across the sealing surface and try to stick a feeler gauge under it. To check it right you need a surface plate and special measuring tools. You might also try lapping the sealing surface on the heads and cylinders by removing the dowels and wet sanding the sealing surface. You will need a piece of precision ground stock to lay the sand paper on to keep it flat and I use 600-800 grit lubricated with WD-40. I have read that others use plate glass for the flat stock, this may also work but I have not tried it. I also use the Cometic gaskets and had to remove the rivets and tie the laminates together with string. Because the rivets were being pinched between the heads and cylinders holding them apart. One of these suggestions should fix your problem, good luck and keep us posted
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Last edited by misterT; 13th June 2009 at 12:30.. Reason: add info
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  #4  
Old 13th June 2009
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ReddTigger ReddTigger is offline
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Quote:
Originally Posted by misterT View Post
Welcome to the forum! The Cometic head gaskets and all others that are laminated steel or solid copper do not use the O rings. Using O rings with these type of head gaskets will cause a massive leak. The other possability is that your head is warped, which would only happen if it was overheated quite a bit. You can half @ss check this by placing a straight edge across the sealing surface and try to stick a feeler gauge under it. To check it right you need a surface plate and special measuring tools. You might also try lapping the sealing surface on the heads and cylinders by removing the dowels and wet sanding the sealing surface. You will need a piece of precision ground stock to lay the sand paper on to keep it flat and I use 600-800 grit lubricated with WD-40. I have read that others use plate glass for the flat stock, this may also work but I have not tried it. I also use the Cometic gaskets and had to remove the rivets and tie the laminates together with string. Because the rivets were being pinched between the heads and cylinders holding them apart. One of these suggestions should fix your problem, good luck and keep us posted
if you don't have a Precision ground stock available (most people don't) use a mirror or another piece of glass.
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