How can you tell if you have bad lobe on your camshaft?
First, because there’s no reason not to, and it’s probably easier to access the top of the cam lobes than the valves. Secondly, because engines with VTEC-comparable systems won’t show a flat secondary lobe at the valve when you’re turning the engine over by hand.
Why does a cam lobe miss at high RPM?
So a miss from a single, slightly flattened cam lobe will often start to go away as engine rpm rises and the lifter pumps up, but will probably reappear at very high rpm as the cylinder begins to once again starve for airflow. Engines with solid lifters may or may not experience low-rpm or idle problems.
When does a miss on a camshaft go away?
So a miss from a single, slightly flattened cam lobe will often start to go away as engine rpm rises and the lifter pumps up, but will probably reappear at very high rpm as the cylinder begins to once again starve for airflow.
What happens when a cam lobe flattens out?
A flattened cam lobe will often manifest first at low rpm, especially for engines with hydraulic lifters. At idle and low rpm, the valve is barely open even when the cam is brand new; when the lobe flattens out, the valve may not open at all until the lifter pumps up at higher rpm.
First, because there’s no reason not to, and it’s probably easier to access the top of the cam lobes than the valves. Secondly, because engines with VTEC-comparable systems won’t show a flat secondary lobe at the valve when you’re turning the engine over by hand.
So a miss from a single, slightly flattened cam lobe will often start to go away as engine rpm rises and the lifter pumps up, but will probably reappear at very high rpm as the cylinder begins to once again starve for airflow. Engines with solid lifters may or may not experience low-rpm or idle problems.
So a miss from a single, slightly flattened cam lobe will often start to go away as engine rpm rises and the lifter pumps up, but will probably reappear at very high rpm as the cylinder begins to once again starve for airflow.
Why does my Polaris Sportsman 500 die when accelerating?
Identifying why your Polaris Sportsman 500 dies when accelerating can be tricky and should not be confused with other known issues for the quad. Some of these common problems include the vehicle not turning over, engine not starting, machine backfiring, stalling, misfiring, and the Sportsman overheating.
How many Polaris Sportsman 500 camshafts are there?
Only 1 left in stock – order soon. . Only 2 left in stock – order soon. . . Only 2 left in stock – order soon. . . Only 8 left in stock – order soon. . Only 2 left in stock – order soon.