Thread: 89 SC Help
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Old 06-22-2009, 07:30 PM   #3 (permalink)
palos
 
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My initial thought was to perform a compression test and/or leak down test, but I doubt that you have a charge in the battery. Also, since the engine hasn't turned over for two years, the piston rings are likely sticky. So, I'd pour a bit of oil in each cylinder and let it sit for a few days to try to free up the rings. You may want to re-install the plugs. At the same time get your battery tested and charged if it is still good. Consider whether the gas tank needs to be drained or if fresh gas can be added, perhaps with an octane booster.

After a few days, remove the plugs and turn the engine by hand. You'll probably be able to tell the difference in the compression in the two cylinders. Then if it feels good, with the battery charged, turn the engine with the starter, but with plugs removed. Oil may splatter out. Lastly, re-install the plugs and connect the wires, then try to start the engine, but remember you will produce a white cloud until the oil burns from the cylinder. If the engine runs and becomes warm, then you could start with my initial thought and perform a compression test to diagnose the problem.
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