camshaft shims
Posted: Mon Sep 30, 2019 9:43 am
I recently spent a few hours shimming up the end float on the exhaust camshaft. At the start I had about 30 thou of movement and a loud clacking noise which caused onlookers to shake their heads, clearly thinking that my bike was a mechanical disaster waiting to happen.
Shimming up the end float is a tedious job as I took the timing cover on and off about ten times to adjust the end float to a final 2 thou clearance. I then took the bike for a 70 mile ride.
This post isn't a question or a plea for help; rather it's to share the good news in what a big difference such a small job made. There is a noticeable drop in vibration levels at all speeds but it's particularly smoothed the bike out at my normal cruising 50 mph. Also, the horrible clacking rattle has disappeared.
I can now hear the other rattles and rumbles more clearly!
Shimming up the end float is a tedious job as I took the timing cover on and off about ten times to adjust the end float to a final 2 thou clearance. I then took the bike for a 70 mile ride.
This post isn't a question or a plea for help; rather it's to share the good news in what a big difference such a small job made. There is a noticeable drop in vibration levels at all speeds but it's particularly smoothed the bike out at my normal cruising 50 mph. Also, the horrible clacking rattle has disappeared.
I can now hear the other rattles and rumbles more clearly!