Changed the head gasket on my 1.6 1989 Miata recently, the car is very smoky on start up and driving and using excessive amounts of oil, before the head gasket replacement this wasn't a problem.
The head gasket changes went on well, no issues with a warped head etc. I'm wondering if I should of completed a top end rebuild with new valves or whether I should of taken the sump off, pulled the pistons out the top of the engine and replaced the oil control rings.
I'm reading a thread here:
One of the users mentions the following, is it correct, it describes my issue but I cannot help feel it's the oil control rings instead:
Generally speaking, Rings smoke all the time. Valves smoke on hard acceleration and especially when you downshift or take your foot off the gas. Usually the exhaust guides go first, because of the heat. If you pull your plugs and they look clean, that would be another indication that the guides or seals are the culprit. Also, the oil would be much less burned running through the exhaust guides, as they would only be exposed to hot exhaust gasses, and not burned with the gas in the combustion chamber.
It's a bitter pill to swallow, it's probably taken 4 weeks in between work, now another issue and the head might need to come back off - or even worse a new engine.