Cracked cam cap repair
Posted: Sun Oct 24, 2010 2:43 pm
Admission of wrong doing enclosed:
So I swapped out the Jap cams for the UK cams a while back, adjusted valves etc. . Since then I have done a track day and a few long rides so maybe 30hrs on the engine since I was playing with it. I left one of the exhaust valves on the loose side so I had a light tapping that I attributed to that. The cyl #1/#2 exhaust cam cap had epoxy keeping the oil supply piece together. The last owner must have tightened down the cam cap with out tightening down the chain guide at the same time. It seemed to be holding so I left well enough alone. While I was buttoning up the right side timing chain cover I found two silver dowels on the ground. I looked and looked and could not figure out where they went (in the timing chain cover area). I put them on the tool box and said a little prayer. The smart bums already figured out they were the camshaft cap dowels.
I went for a ride with a friend after doing a all fluids, filters chain, sprockets, tires, and rigged the fairings back on. Needless to say his bike ran great mine developed a nasty tap. So I parked it and pulled off the valve cover and noticed the epoxy job coming undone. Undid the cams and found one bolt for the #1/#2 intake cam cap bolt was loose. A little marring on the lobe. Still smooth to the fingernail so I will let it ride. I look down at the head and lo-n-behold there are the empty spots for the dowels. No wonder the bolt worked loose.
Any suggestions for epoxying this cam cap back together? It is only the oil feed. Nothing load bearing.
So I swapped out the Jap cams for the UK cams a while back, adjusted valves etc. . Since then I have done a track day and a few long rides so maybe 30hrs on the engine since I was playing with it. I left one of the exhaust valves on the loose side so I had a light tapping that I attributed to that. The cyl #1/#2 exhaust cam cap had epoxy keeping the oil supply piece together. The last owner must have tightened down the cam cap with out tightening down the chain guide at the same time. It seemed to be holding so I left well enough alone. While I was buttoning up the right side timing chain cover I found two silver dowels on the ground. I looked and looked and could not figure out where they went (in the timing chain cover area). I put them on the tool box and said a little prayer. The smart bums already figured out they were the camshaft cap dowels.
I went for a ride with a friend after doing a all fluids, filters chain, sprockets, tires, and rigged the fairings back on. Needless to say his bike ran great mine developed a nasty tap. So I parked it and pulled off the valve cover and noticed the epoxy job coming undone. Undid the cams and found one bolt for the #1/#2 intake cam cap bolt was loose. A little marring on the lobe. Still smooth to the fingernail so I will let it ride. I look down at the head and lo-n-behold there are the empty spots for the dowels. No wonder the bolt worked loose.
Any suggestions for epoxying this cam cap back together? It is only the oil feed. Nothing load bearing.
