So I have oily spark plugs on my Ranger.

"TheLOUDMUSIC- Put it in H!" (theloudmusic) 03/03/2016 at 18:53 • Filed to: help me oppo-wan kenobi, you're my only hope

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Is that something I should really give a shit about? I only really want it to last another 6k, enough for the odo to roll over again. The other 3 look similar. The good news, I guess is that there wasn’t any signs of coolant in the cylinders. EDIT: I don’t really care about the oil on the outside, it’s the oil in the combustion chamber that makes me wonder.

Just to be clear, the truck has been sitting for about a year. Plugs are about 10k old.

bryan40oop > TheLOUDMUSIC- Put it in H! 03/03/2016 at 18:54

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get motorcraft plugs.

dogisbadob > TheLOUDMUSIC- Put it in H! 03/03/2016 at 19:09

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Could be an oil leak, oil getting past the spark plug tube seals. If it isn’t difficult to do on this engine, change the valve cover gasket and spark plug tube seals (they often come in a package together).

Sovereign, Purveyor of Coupes > dogisbadob 03/03/2016 at 19:12

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Oils on the wrong side of the plug.

TheLOUDMUSIC- Put it in H! > dogisbadob 03/03/2016 at 19:12

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Tube seals? I don’t think this engine has those. The spark plug is well below the valve covers. But yeah, the valve cover gaskets are planned anyways. Engine is a 2.9 cologne v6.

PorkchoPlissken > TheLOUDMUSIC- Put it in H! 03/03/2016 at 19:14

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Valve cover gasket

Kaputnik > PorkchoPlissken 03/03/2016 at 19:21

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I second this, from the oil above the thread on the first cylinder. Nbd for 6k to go

Kaputnik > Sovereign, Purveyor of Coupes 03/03/2016 at 19:25

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Not really, both plugs with oil on them show signs of oil at or above the nut. From what i’ve seen its very normal for the oil to chase the thread much like diesel, PB blaster, or any other “break free” agent would once a bolt is heated.

Sovereign, Purveyor of Coupes > Kaputnik 03/03/2016 at 19:29

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While I don’t disagree with your second statement, all three have oil at the tip, at least one doesn’t on the other side. While a little oil on the spark plugs on a low maintenance engine aren’t a huge deal it’s definately not just valve cover gaskets.

Kaputnik > Sovereign, Purveyor of Coupes 03/03/2016 at 19:45

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Heard. Either way they look like dog poo and it appears as though the valve cover is leaking into the tubes. Best way to check would be replace the gasket and check in several miles. Hope this helps!

Birddog > TheLOUDMUSIC- Put it in H! 03/03/2016 at 19:47

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More than likely it’s valve guide seals. It’s pretty common on an engine that old and nothing to really worry about.

TheLOUDMUSIC- Put it in H! > Birddog 03/03/2016 at 19:56

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Good to hear. Hopefully, it’ll last til 200,000, and I’ll get a better or at least newer engine to go in it.

Birddog > TheLOUDMUSIC- Put it in H! 03/03/2016 at 20:13

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Drag it to 200k then slap a 4.0 in there.

Busslayer > TheLOUDMUSIC- Put it in H! 03/03/2016 at 20:28

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Only need a few thousand more miles?Dump some really thick oil in there. Maybe that will slow the slow the leak enough to keep the plugs from fouling too quickly.

Pokesmot > Birddog 03/03/2016 at 20:34

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Drag it to 200k then slap a 5.0 in there.

FTFY

TheLOUDMUSIC- Put it in H! > Pokesmot 03/03/2016 at 21:54

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Yes to both, depending on future transportation needs.

Old-Busted-Hotness > TheLOUDMUSIC- Put it in H! 03/04/2016 at 07:10

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They’re not bad enough to worry about. When they’re black and fluffy is when you’re really burning oil. These look good enough to clean & re-use.