I checked exhaust, but no leaks.
I have run synthetic oil for a couple of oil changes with no change in frequency of ticking.
I listened all around as best I could and when the louder ticking starts it sounds noiser at the top half of the engine. I do notice ticking at the front around the timing case but hard to tell top or front for the noise.
Originally Posted by cvorden
Just bought lifters for my 87 YJ yesterday have not started tackling the job yet. Let me know how yours goes.
I'm still deciding what to do, you'll probably be done -- keep me posted. You decided on lifters only..........