Question about Mazda 323
All the blue smoke sounds like the valve guides and seals are bad. Also the rings could be posing an issue. Usually when the car sits all night the oil seeps down the guides ono the valves and when you start the car the oil burns off. Try a thicker oil. 20/50 would be a good start. Thinner oil like 5/30 usually is to thin at this point. In the summer time oil breaks down faster and the viscosity allows for nore oil leaks and burning of oil. Thicker oil helps slow the problem. Good luck.
Posted on Jul 29, 2008
Usually the valve cover seals are bad. There is a seal on the valve cover for each sparkplug tube. Check the seals. If they are bad than there will be oil on the spark plugs.
If there is oil on the spark plug electrode than probably valve guides going bad.
Posted on Jul 26, 2008
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Posted on Jan 02, 2017
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