Join Date: Jun 2018
Location: Sumter, SC
Model: Goldwing GL1500 Aspencade
Turns out I'm not burning coolant after all. I'm in fact burning oil. The reason for the coolant level drop after initially running the engine was likely because of air in the cooling system. It's been stable all day and maintains the upper level fill mark on the overflow bottle.
The smoke I'm seeing is white/blue smoke and smells very much like burnt oil. I'm also seeing fresh combusted oil (somewhat clear) exiting the drain holes on each muffler. That's telling me she's definitely burning oil. I'll pull the spark plugs out in an hour once the engine has cooled, and that will tell me which side is burning oil.
Given that the engine does not start burning oil until well after the engine has warmed, I think it's possible that this could be degraded valve stem seals. What's making me suspect this is the oil has to have time to travel through the heads before enough oil gathers in the valve train to be sucked through the seals and into the combustion chamber.
The other possibility of course is stuck oil rings. As the engine warms up, the cylinder walls theoretically expand from heat, thereby creating a larger gap for the oil to slip past the rings and into the combustion chamber. Honestly, either scenario will mean a great deal of work. Of course, if it turns out to be the oil rings, and even after oil treatment with seafoam or B12 Chemtool, then the only thing I can hope for is for the rings to break loose after driving time. However, if it turns out to be the rings, then the motor is done and it's probably better for me to replace the engine, or have the one on it overhauled, at which case I'd simply sell the bike for parts. LOL
However, if it is the valve stem seals, then that is repairable, which would mean both heads would have to come off.
Engine runs great after carb-tuning this morning, and has a substantial amount of power and torque. Unfortunately after about 15 to 20 minutes of idle time, she begins to smoke blue/white smoke with a noticeable amount of burnt-oil odor. Juice the throttle while test driving around the block and the smoke gets progressively worse.
What say you all? Oil rings? Piston rings? Valve stems? Junk the bike? lol