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Compression results are in! (93 850) 850 1993

posted by  riverbend on  Sun Nov 16 09:09 CST 2014
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last visit: Wed Oct 22 15:29 CST 2014
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Correct, that would be a ring/bore issue. The oil temporarily seals the rings, but can't reach the valves.

A partial miss will make the engine vibrate. If the vibration is a weak cylinder, it may fade away with speed because the frequency increases so it is not as noticeable. Also, there is less time for the compression to leak away at higher rpm.

I'm not sure how you can disable one cylinder on a running engine with electronic ignition. With points you could just pull the plug wire off and see if the symptoms changed. Electronic ignition is a little less forgiving and the electrical components might not like 'absorbing' the lost spark.

Greg





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New Compression results are in! (93 850) [850][1993]
posted by  Shaughnessy  on Sat Nov 15 16:14 CST 2014 >


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