Re: Rhythmic smoke puffing out of oil input breather cap
If it has a busted ring it will eventually score the cylinder & burn a piston. A person could do a single cylinder if it was traced back well enough as suspect. If it wasn't long since the last overhaul it could be deglazed an re-ringed on just the one bore. Usually all the cylinders will break in and all will have problems if it sets too long. Just one cylinder low make a person scratch their head for sure. Oil users can be brought back to life some times but compression is another thing. Sticky valves will cause a miss or intermittent flutter but it won't affect the crank case pressure. A good amount of compression is getting by somewhere if it's trying to make smoke signals out the filler tube.
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