JJS
Guest
There is play in the cylinder chain, when the cylnder is spun by hand. This is due to the chain idlers being spring loaded.Not sure just how much. There should be almost no play , when the cyl. is turned in the other direction. While you have the cover off, check the condition of the springs on the idlers, and the chains. If you don't know when they were last changed, it would be a good idea to replace them. Also check the bearings in the pulley housing. this tends to be a problem aera. good luck