Posted by Tom43 on February 03, 2008 at 10:27:27 from (64.149.32.88):
In Reply to: coil resistance posted by L.C.Gray on February 03, 2008 at 09:03:43:
Bob has a great response. An ohmeter will tell if a coil is bad. You must have both primary and secondary continuity; however these checks will not tell if a coil is good. When warm and under load the coil can arc both internally and externally. The only definitive test is an ignition scope, coil tester or substitution with a known good coil. Remember you MUST HAVE THE RIGHT COIL FOR THE APPLICATION.
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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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