THE CAM CHAIN GUIDE BOLT MAY LOOSEN DUE TO THE PRESENCE OF A RUBBER COATING ON THE SURFACE OF THE GUIDE IN THE AREA WHERE THE BOLT SEATS. IF THE BOLT BECOMES LOOSE, THE ENGINE WILL DEVELOP A TICKING NOISE. CONTINUED VEHICLE OPERATION WITH A LOOSE GUIDE BOLT MAY RESULT IN BREAKAGE OF THE BOLT AND INCREASED ENGINE NOISE.