So the oil cooler line let go on my car and dumped all the oil out. I was not driving, but my gf noticed pretty quick and got it pulled off under a minute, but not before the loss of oil caused some damage to the internals of the motor.
I fixed the oil cooler line per the clamp method shown on this website and refilled her with fresh oil, but she ticks pretty back. Sounds like a sharp metalic tick that is tied to engine rpm. If the car had them, I would say it sounds exactly like a rocker arm gone bad. Almost like a diesel sounds at idle. Tick Tick Tick. It is coming from the top end of the motor.
The motor seems to run fine other than the ticking, but I have purchased a used motor as I will never trust this one having been run low on oil.
In the interim, before I pull and replace the old motor, I want to see if I can get it to stop ticking by replacing a few easy to replace parts.
1. How hard it is to replace the valve lifters? Is this a possible failure point that would cause this? Looking at the parts diagram, I can't see what else in the valve train would cause ticking like this. How hard are these parts to get out?
2. Is it possible it is the chain tensioner? Would this cause ticking?
Since I am a land rover guy, I am not too familiar with DOHC four cylinders and how to work on them.
I know others had similar issues with the oil cooler lines failing and then having motors that ticked, but those motors were replaced under warranty and I could not find anyone who tracked the ticking problem down. It seems to me that it is worth a shot to try to fix the ticking just to see what it is, even if I am going to replace the whole thing with a new motor.