Check hydraulic valve play compensation elements | Model 447, 448 with engine 274 Model 907 with engine 274 | ||
Remove/install hydraulic valve play compensation elements | Model 447, 448 with engine 274 Model 907 with engine 274 | ||
Remove/install valve springs | Model 447, 448 with engine 274 Model 907 with engine 274 | ||
Replace valve stem seals. | Model 447, 448 with engine 274 Model 907 with engine 274 | ||
Remove/install valves | Model 447, 448 with engine 274 Model 907 with engine 274 |