My Nissan truck helps with a lot of smoke

I have a Nissan 1989 Motor 1800 truck which did not throw smoke his head 3 times because he started to smoke and after that he throws me a lot of white smoke and when he accelerated he throws a lot of smoke and check him compression and empty and apparently they are fine. I have been reading on the Internet and apparently the EGR or PCV valve

Petroleum or Displaced? Heats has water consumption Fujias oxidized more data to be able to help you better, because so it can be from a cracked cylinder head to problems with the motor block.

The truck does not heat up well on but what I have seen is that the spark plugs are filled with oil and of course after one day it starts to tremble and I have to clean them again. Before removing the cylinder head, the spark plugs were fine without a trace of oil and almost didn't smoke just a little sometimes.

Check the distribution that is well regulated