Improper break-in procedure, infrequent oil changes.
Worn out rocker nut, stud pulling out, or bad cam.
If the peaks of the cam lobes are all worn the camshaft needs to be replaced. It will affect the valve timing and the air intake into the engine which in turn affects the performance.
In order to check for a worn cam load you have to run a compression test a change in pressure will tell you if it's worn.ÊYou cannot fix a worn cam it must be replaced.
this probably means you have a worn cam shaft or cam shaft or the arm that hits the cam shaft to open the valve is worn. this is internal on the engine.
Typical of worn bearings....crank, cam and rod bearings.
A bad lifter, worn piston rings/cylinder walls, carbon build up, bent push rod, and a worn cam lobe. A burned valve can also cause low compression.
There a bunch of likely causes but if there are no obvious leaks then I would suspect a stuck open egr valve or a worn out cam shaft.
Low oil pressure. CHECK with oil pressure gauge. Worn valvetrain / Lifters are cam lobes worn. stoped up oil pump screen. Cam bearings worn. These are a few things you need to check.
Worn ball joints, worn tie rod ends and worn shocks are the main causes.
In general the cam itself doesn't wear out, but the bushings it turns in do. Try wiggling the S-cam; if you can, the bushings are probably worn out.
Worn cam chain, or distributor loose or worn.
Because as you grow older, your reflexes start to worn out this causes them to become slow