Posted by Ferd on May 04, 2017 at 14:54:47 from (107.77.109.22):
550 Oliver misses if it's been worked hard. Continues to miss even after you take the load off. I'm wondering if the spark plugs could do this? The plugs are new 386 autolites and the manual calls for autolite BT–8. The cross reference shows several different substitutions including the 386. It was still missing when I parked it and pulled the plugs. You can see by the photo that they're kind of white instead of tan. Wonder too hot to plug could be causing the problem? Also any suggestions on a different plug would be appreciated.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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