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Old 04-06-2020, 09:00 AM   #7
truckster
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Join Date: Jan 2001
Location: Orem, Utah
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Re: Tinkering on the 72 jimmy, may have hurt the engine...Thoughts?

Take the other 4 plugs out and turn it over by hand. Watch for anything that comes out and which cylinder it comes out of.

Depending on how long it ran that way, it may or may not have damaged bearings and cylinder walls. Coolant is not a very good lubricant, and gasoline is worse.
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