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1993 Ford Explorer Other - Engine
Question: I had talk to len i beleave on a coolent problum,
now i have number 5 cylinder burning oil on a reman
engine. How can i go about finding out why. I put
140 miles on engine and is down 1 qt, the plug is black.
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Technican: Hi;
You will have to do a dry and wet compression test. Do the test dry first and then putt a couple of drops of oil in the cylinder. If the compression comes up then most likely is going to be a piston ring. If it does not come up then it will be a bad valve stem seal or guide. .
Owner: les, i did a wet an dry compretion test it was a 150
both times, how much of a diffrence would there be
if i only removed the one spark plug?
thanks for your help.
Technican: Hi;
There would be more of a difference if you pull out all the plugs. the engine will spin more freely. Sounds like you have a valve stem seal leaking. Hope is the easy side to get to. Take the valve cover off and see if you can see it either torn or missing. You can replace it on the vehicle withou pulling the head. Thanks. Here's How To Get Guaranteed Solutions In Minutes
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