Mad_mat222
Active Member
- Joined
- Jul 12, 2019
- Threads
- 16
- Messages
- 63
Greetings,
Riddle me this, I’m replacing the carb on the above machine and went to start it and heard this ticking noise. It is coming from the exhaust side of the cam. Just after the intake closes the exhaust opens very slightly then snaps shut and makes a click/clack sound like it’s rides off a square edge. My understanding of this cam is that both the intake and exhaust followers run off the same lobe. All other operation is smooth. The really puzzling thing is that the push rod is only dropping in cw rotation as viewed from the back. If you rotate the engine ccw, it’s smooth 360 egrese and normal rocker movement.
Thoughts?
Riddle me this, I’m replacing the carb on the above machine and went to start it and heard this ticking noise. It is coming from the exhaust side of the cam. Just after the intake closes the exhaust opens very slightly then snaps shut and makes a click/clack sound like it’s rides off a square edge. My understanding of this cam is that both the intake and exhaust followers run off the same lobe. All other operation is smooth. The really puzzling thing is that the push rod is only dropping in cw rotation as viewed from the back. If you rotate the engine ccw, it’s smooth 360 egrese and normal rocker movement.
Thoughts?