Ludo van Senten
New Member
Hello all, I have an MD2030B with a slight clicking sound.
In 2016, the rocker arm shaft, no. 23 in the attached drawing, broke. I installed a complete new rocker assembly. The engine has run 400 hrs since then, but recently I hear a clicking sound, maybe it was there all along but I didn’t notice. I've re-adjusted the valves, but the slight clicking persists. While adjusting the valves, I noticed that the front and rear rocker arms (colored red in the attached drawing) have axial play of up to 2 mm, so I can slide these rocker arms 2mm over the shaft. The other four rocker arms don't have this play; they are held in position by their springs (no. 24 in the drawing).
I can't imagine this is how it should be and I think these 2 rockers are causing the clicking sound. Maybe someone can check theirs MD2030, 2020 or 2040 (when doing their valve adjustments)?
Ludo
In 2016, the rocker arm shaft, no. 23 in the attached drawing, broke. I installed a complete new rocker assembly. The engine has run 400 hrs since then, but recently I hear a clicking sound, maybe it was there all along but I didn’t notice. I've re-adjusted the valves, but the slight clicking persists. While adjusting the valves, I noticed that the front and rear rocker arms (colored red in the attached drawing) have axial play of up to 2 mm, so I can slide these rocker arms 2mm over the shaft. The other four rocker arms don't have this play; they are held in position by their springs (no. 24 in the drawing).
I can't imagine this is how it should be and I think these 2 rockers are causing the clicking sound. Maybe someone can check theirs MD2030, 2020 or 2040 (when doing their valve adjustments)?
Ludo