Why it didn't misfire- I'll never know...

supraguy@aol

Well-Known Member
Dec 30, 2005
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Atlanta
Was bored today, so I decided to degrease the #3 cover on my engine, as it was inexplicably greasy.
I figured I just had to retorque the valve cover bolts. Well, after taking off the IC pipes and unbolting the coilpack, I start pulling the spark plug wires. HOLY Crap! EVERY single plug wire was submerged in oil. Not wet or oily....submerged. The enitire spark plug valley was completely filled with oil to the point of overflowing! Well, I start removing the valve covers, the #3 cover, and begin sopping up the oil. in fact, there was so much, I began by siphoning the oil out.
So when i was done, I decided to check the valve clearances, and head studs before buttoning it all up, since I'm in there and all. Well, the valve clearances are almost all too loose and out of tolerance. And so I begand the valve shim shuffle- measuring clearnces, writing them down, removing the shims, and calculating the new arrangement. After doing that, and reinstalling the cams, I torque down everything, and start retiming the cams/ crank, After doing so, I run it through a rotation with a wrench, to verify there's no slipping. Only problem is- the engine stops turning- it's locked up! Now what? I inspect the cams, and discover that the #2 exhaust valve on the #5 cylinder was left out of the shim party! GREAT. SO....I spend the Next hour untorquing and removing the exhaust cam, and the reinstalling and retiming. I just finished for the night, and I still have to set the cps and reinstall the valve covers, timing cover, IC pipes, coils, etc. I just hope that I get it all perfect before trying to start it. I'm tired. 7hrs total.
:: angry ::
 

supraguy@aol

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Dec 30, 2005
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So anyway, now that I'm thinking about it, how could the entire spark plug valley fill up?
I mean- it's three isolated compartments, I just don't see a leaking valve cover causing this. Maybe one section of the valley, but not uniformly filling all three.
If anyone has any ideas, please share. Thanks.
 

supraguy@aol

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Dec 30, 2005
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The upper plugs? When I removed them, they were all tight.
I'll take them out again and coat the threads.

PS- I just read an old post from 2007, where JetJock points out that oil doesn't conduct very well at all.
I guess that explains why she still ran smoothly-even with more oil in the valley than in the crank case.

: )
 
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supraguy@aol

Well-Known Member
Dec 30, 2005
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Atlanta
Oh, I know- I've had this car for 15 years.
But to leak evenly into all three valleys, and fill to the top of the plugs? It's gotta be the upper valley bolts, i'm thinkin.
 

Supracentral

Active Member
Mar 30, 2005
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Possible, but not likely. I've seen valve covers fill them up like that more times than I care to think about.
 

supraguy@aol

Well-Known Member
Dec 30, 2005
4,242
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Atlanta
Well regardless, I'm taking precautions for both. I already had the stainless bolts/ star washers, and have coated the surface of the valve cover gaskets with a non-hardening hylomar sealant, which worked fantastic on my last motor.
Also- I've put a small amount of hi-temp sealant under the mounting surface of the spark valley cover, encircling the plug bolts mounting points, as well as adding hylomar sealant under the lip of the plug bolts themselves.

...if this leaks, Jesus doesn't love me...