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well, I figured out why my engine won't run right....now what? 200

posted by  unggthat on  Fri Oct 31 07:55 CST 2003
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last visit: Thu Mar 6 10:37 CST 2014
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well, the compression test shows 55, 180, 180, 180. I am using an old gauge and all, but numbers that different from each other seem to be pretty telltale. However, what could this be now? I think it MIGHT be a bent exhaust valve, because that would make sense with the clicking which the engine is doing. The other thing is that the plug is not oil soaked, but looks black and sooty. Another odd thing, the other three plugs which looked a nice light brown 5 days ago now are all sooty black too. The car has only been driven a little bit. Could this be failed O2 sensor because of all the fuel shooting through the exhaust because the #1 exhaust valve failed? This is my best guess right now...Any suggestions/corrections are welcome. Thanks again....hopefully this car will be running again before TOO long....
Nate Gundy
--
'86 240DL, M46, K cam, 25/21mm sways






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