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Smoke Coming from One of the Spark Plugs... New Gasket?


Killtodie
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Its coming from so far only the second spark plug from the front, I took out the connection and soaked a paper towel with some of the grud, looks to be oil. its black and smells like it...

 

what does this mean? bad gasket? this engine was "rebuilt" before I bought the car.

Edited by Killtodie
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I would check the VC bolts and make sure they are not loose. It doesn't require much torque, but usually a little more torque will slow the leak down or stop it completely. It can't hurt (unless you tighten way too far). The worst thing is you need to replace the VC gasket. I think it is $7 at Auto Zone.
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Where are those valve cover bolts, the only thing I see on the valve head are like bolts that hold lines.

Is it the two, one is by the oil lid and another way back

 

http://img268.imageshack.us/img268/5937/29128555.jpg

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yes sir.

 

Me being a Mopar V8 man...I was baffled by the center bolts too...lol

 

 

Yeah, I was thinking like at least 4 or 6...

 

K, i'll look up their correct torque rating and try it out before I take off for the 4th.

we'll go from there, thanks

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tourqe is 4lbs :) so just snug is good,, odds are there a problem with the gasket arround #1 plug area ,, also make doubly sure the pcv valve is the right one

 

also a spray down with brake parts cleaner is a better idea then water ,, you won't need to blow dry

Edited by Shelby
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I took a look at it.

 

Turned the nut almost twice around before the torque wrench got a reading, took it to about 8lb.

 

But thats just the valve cover, if there is oil leaking from the spark plug hole than its the valve head gasket, not the cover

 

I'll retourque all the plugs as well

Edited by Killtodie
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here is what I got

 

does this look like a leaky head?

 

http://img44.imageshack.us/img44/9054/img5396f.jpg

http://img4.imageshack.us/img4/6453/img5397k.jpg

http://img269.imageshack.us/img269/3260/img5398j.jpg

 

btw, when i was at pepboys they said something about gaskets for the plugs themselfs, I saw nothing like this when I took mine out other than a washer. is there supposed to be a rubber gasket or something like that?

 

so I retightened the rocker cover, plugs and cleaned out any remaining oil. I\'ll run the engine and see if any new leaks form...

 

 

 

okay, so here is an update. There is oil slowly bubbling out of the plugs, this would explain why after a 600+ drive home the car had just over a quart left in it.

video:

 

Called pepboys back, there is supposed to be some sort of "optional" gasket, all special order, takes a few days

 

Okay, last update. Went to pepboys, there is no other plug gasket other than the crush washer that new plugs come with. so I bought new NKG BPR6ES-11plugs and a new rocker cover gasket. I will replace both later tomorrow after work. happen to have last one in stock.

 

Looks like the previous owner who did a "rebuilt" didnt replace the plugs cause they are old and its leaking cause of the crush washer is one time use.

 

hopefully that is the only cause here.

Besides that, replacing the rocker cove gasket, as simple as it sounds? two bolts, scrape off the old, sand some, new one, tighten back up?

Edited by Killtodie
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Properly installed plugs with the washers should not leak at all. Doesn't matter if they're used 1 or 10 times. Some plugs are built without washers. Those get tightened differently (less).

 

Just make sure both surfaces for the VC gasket are clean and oil free. I use a thin layer of black RTV on one surface (gasket) before putting it down. Pay particular attention to the curve in the back and the half round plug in front making sure they get a good clean film.

 

Don't use too much RTV though because it will squeeze out underneath the VC and can get into the oil system. Just a nice thin layer, less than a bead even.

 

And never try and use a torque wrench on a real low torque bolt. It is a recipe for stripped threads. As shelby says just snug... you learn to feel it.

 

I've been able to reuse the same VC gasket many times with the RTV. Even when it gets fairly hardened.

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I dont know then. The current washer on the plugs was all flat and crushed compared the new rounded one.

 

So, to remove the head cover, just 2 bolts, pry it off, prep the surface. apply rtv, (to both sides?) gasket, grommets and retighten?

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