Ticking noise caused by worn valve tips?.

[turquise1]

Hey ppl,

I have the classic ticking noise for a while. I have done many repairs including the timing chain guides and lifter rebuilding and the ticking is still there and loud.

So, I opened up the engine once again (also hoping to replace the valve guides because of spark plug oil fouling on cylinder 6) to check the valve springs and did not see any damage yet. What I noticed was, some of the valve tips were worn. I measured a couple of them and the worn ones are shorter closer to 1 mm. Basically the round part of the valve tip seems to be worn on some of them.

Now, the question of course is, would that cause the ticking? What would be the best solution? Take the head off and put new valves or just get a rebuilt cylinder head. Is there any easier solution other than living with that ticking hoping that it would not cause major problems?

I am also including a photo to give you an idea. Check out the left (worn) valve and the other that looks ok..

Thanks,

Ozzie