Hey guys. I have a 93 Nissan pickup. Now I used to hear this same clicking sound in the engine when I was getting low on oil (because my truck used to burn oil). It's a steady clicking sound that gets faster as the engine revs up. Well I just recently had to have a lot of engine work done because I had a burnt valve and the guide on my timing chain was broken. So the head was reworked, a few valves were replaced, timing chain was replaced, and it's been running fine (plus it no longer burns oil
But last week I started noticing the clicking sound coming back, but this time I'm not low on oil. AND it only starts after I drive on the interstate for a little bit at 70-75 mph around 3000 RPMs. I'll get off the interstate and hear the clicking. But then if I turn the truck off and start it back up and let it sit for a second and start it back up, it stops. Sometimes I can even just turn it off while it's still rolling and start it back up and it stops.
So I've read other topics on random pages talking about how lifters can cause this noise. But since it only does it at those certain times, and it quiets down by just turning it off and starting it back up, it confuses me.
Also, should having the head reworked have fixed any problems with the lifters or not?
And I've read mixed advice in these random forums I've checked. I've seen someone saying that it should be repaired or the engine could suffer further damage. But more often than not, people are saying that's something that happens with age, and it's really nothing that you need to worry about because it's not hurting anything.