Ok, early 1990s CJ with the 4.0HO
Just so that I'm clear on the differences between the sounds that rod knock makes vs noisy lifters.....
Rod knock will always be there, it doesn't go away after the motor warms up or the oil gets circulating.
Lifter noise will generally soften or even go away after the engine has been running for a while.
Lifter noise can usually be fixed without opening up the motor, just pull the valve cover on the correct side and change out the rockers/adjusters/springs as needed.
Rod noise requires a tear down to repair, probably mains front to back.
Have I got that right??
Thanks!
Just so that I'm clear on the differences between the sounds that rod knock makes vs noisy lifters.....
Rod knock will always be there, it doesn't go away after the motor warms up or the oil gets circulating.
Lifter noise will generally soften or even go away after the engine has been running for a while.
Lifter noise can usually be fixed without opening up the motor, just pull the valve cover on the correct side and change out the rockers/adjusters/springs as needed.
Rod noise requires a tear down to repair, probably mains front to back.
Have I got that right??
Thanks!