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Old 22 Feb 2011, 10:40 pm
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Default Spark plugs

So today I chained oil and all that, even changed the spark plugs and wires. When I took out plugs 1 & 4 they had oil all around the treads and in the holder. What could this be from???
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Old 23 Feb 2011, 12:08 am
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Default Re: Spark plugs

the oil filler port sometimes it leaks and ends up in them deep plug holes
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Old 23 Feb 2011, 06:13 am
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Default Re: Spark plugs

As you saw, the plugs are in deep holes in the valve cover. There are rubber seals between the valve cover and the spark plug holes - unless there's a lot of oil on the plug, I wouldn't worry about it.
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Old 23 Feb 2011, 10:21 am
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Default Re: Spark plugs

2nd quicksilverdon's reply
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Old 23 Feb 2011, 12:44 pm
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Location: Northumberland PA
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Default Re: Spark plugs

it was a decent amount of oil that was on the plugs. i showed my grandfather which works on cars and he was amazed on how much and it seemed like alot compared to plugs 2 and 3. they just had a little on it compared to 1 and 4
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Old 23 Feb 2011, 01:14 pm
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Default Re: Spark plugs

Change the valvecover gasket since you are there and replace the O-rings in the sparkplug wells. No big deal about the amount of oil in the wells. Different O-rings leaked differently.
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Old 23 Feb 2011, 03:03 pm
Join Date: Sep 2009
Location: south of Tampa, Florida
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Default Re: Spark plugs

As has been said, you're leaking past the cam cover spark plug well seals. When you change the spark plugs check the torque on the three center line cam cover bolts. They are the ones that are inline with the sparkplug holes. You "might" be able to slow your oil intrusion by just setting these to there proper torque. If that doesn't get it, then as was said, change the gaskets. It's your choice at this point. If you don't own an INCH lb. torque wrench, you should get one. Most of what you see externally in our engine compartments are torqued to inch pound specs and some are very important that they be installed to proper specs. They should be set at 105 inch lbs. (NOT foot lbs). I actually check the torque on all my cam cover bolts every 6 months when I do my spark plug condition check. My plugs were installed on July of 05 and they still are perfect. No signs of wear at all. Zero gap change and still have only the slightest brown coating as if they were just installed last week.

By the way, your plugs should be torqued to 155 INCH pounds.


Last edited by wwpptc; 23 Feb 2011 at 03:07 pm.
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