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Oil in spark plug well

 
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Old 28 Dec 2011, 01:07 pm
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Default Oil in spark plug well

This is the plug well on the passenger side No. 1 I think. The ONLY one I can get to without taking off the manifold. I thought it was a lazy tech at Walmart that spilled all over the engine one day as we could smell burning oil. I sopped it all up and what I didn't get I took the plug out and let drip in the cylinder that was back in October. We were off work for a week for the Christmas Holiday and we noticed the burning oil smell again. I opened the hood and low and behold oil and the plug well filled again. I have a leak.

The only things I can think of are:

Bad head gasket. Ok, I am NOT leaking coolant

Bad Oil ring in piston. Wouldn't that smoke like a chimney and burn off.

Power steering reservoir leaking. I would know that by driving.

Stripped Plug/Plug hole. Nope, its tight or I wouldn't have compression.

Anything I left out would be helpful. Thanks.
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Old 28 Dec 2011, 02:31 pm
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Default Re: Oil in spark plug well

Seal on spark plug tube? Beside a spill, this is about the only way for oil to get in tube.

I'd go with your first intuition- fully rule out that it wasn't spilled oil.
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Old 28 Dec 2011, 04:47 pm
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Default Re: Oil in spark plug well

If not a spill then spark plug well/tube O-ring gasket. Far as I know when I replaced mine the O-rings for the plug well were sold in a kit including well O-rings and valve cover gasket.
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Old 29 Dec 2011, 12:52 am
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Default Re: Oil in spark plug well

Get a Hayne's manual so you can do the following to specs (torque values and sequences, etc.).

Take off the valve cover. Replace the spark-plug tube seals in all four tubes. Replace the valve cover gasket. Torque the valve cover bolts per your Hayne's manual (sequence, too).

I'd replace the plug wires also, because oil and plug-wire rubber are a bad combination ....

All done!

Tim
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Old 30 Dec 2011, 02:17 pm
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Default Re: Oil in spark plug well

You have a valve cover gasket leak.

Easy fix.
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Old 30 Dec 2011, 04:38 pm
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Default Re: Oil in spark plug well

Quote:
Originally Posted by mdfrodolives View Post
Get a Hayne's manual so you can do the following to specs (torque values and sequences, etc.).

Take off the valve cover. Replace the spark-plug tube seals in all four tubes. Replace the valve cover gasket. Torque the valve cover bolts per your Hayne's manual (sequence, too).

I'd replace the plug wires also, because oil and plug-wire rubber are a bad combination ....

All done!

Tim
You forgot to mention the sealant that goes on with the valve cover gasket. You don't just put it on without the sealant and the sealant only goes on in certain places.
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Old 30 Dec 2011, 07:07 pm
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Default Re: Oil in spark plug well

I stopped doing that years ago- They want silicone (some special type, I'm sure) where cam caps form an abrupt angle with valve cover surface per-se.

As always, don't do what I do
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Old 30 Dec 2011, 08:47 pm
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Default Re: Oil in spark plug well

Thanks for all the suggestions. I was hoping for a simple fix and this sounds like what it is. I first thought it WAS a careless technician replacing the oil since the plug well is near the filler. We replaced the plugs back in July and didn't notice any oil then. It was some time in September or October after the oil change.

I take it I can get the parts I need at any auto parts store?

Thanks for the help.
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Old 30 Dec 2011, 11:45 pm
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Default Re: Oil in spark plug well

Yep.

Fel-Pro is the favored name in Gaskets, rockauto.com has best price but shipping might put it over local guys.

I generally re-use the gaskets without leaks, but again ...
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Old 31 Dec 2011, 01:35 am
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Default Re: Oil in spark plug well

GT, I didn't mention sealant on the valve-cover gasket because that information is covered in the Hayne's Manual ... that I mentioned.

Often, Cruisers ask questions on this forum that may be answered by other Cruisers. But the price for a Hayne's Manual is not very expensive, and it shows you, not only how to perform a procedure, but also torque values--and little items like slapping on a little RTV Sealant in the corners of certain gaskets.

In lieu of writing a very lengthy How-To, per answer, it's a lot less time consuming to simply point out that there are cheap manuals out there which have information that will insure you don't have to do the same fix more than once.

Hayne's is not a perfect manual, by the way, but it has some good info ....

Tim
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