Posted October 13, 2010 - 01:31 PM
I was removing the head from my 1998 wr400 when I noticed that as I pulled up on the cylinder a small (1mm or so) gap appeared at the bottom of the cylinder on the right side opposite the bolt that holds it on. As soon as I release my grasp the gap went away. I was pulling to move the exhaust over as the nut on the exhaust was just spinning the threaded rod it was on, and I needed to take the head off before I could get it off anyway.
Here are my questions: Since only one bolt holds the cylinder on, is this gap normal? Should I replace the bolt as a precaution to the fact that my pulling could have weakened the bolt and that it might break later down the line? If I replace the bolt, should I replace the gasket too?
I'm a little paranoid when it comes to the small things, and I don't have the time or money to pull the head again should I get it back together and something is wrong with the cylinder.
Posted October 14, 2010 - 07:27 PM
Posted October 16, 2010 - 12:29 PM
Posted October 16, 2010 - 10:10 PM
Posted October 17, 2010 - 02:08 PM
Thanks for the insight,
Posted October 18, 2010 - 04:38 AM
Never fully loosen a sealing bolt whole leaving the opposite one fully tightened. Hopefully if this is what you are describing there is no permanent damage done.