Most of the plugs look to be in the general vicinity of each other.
But I don't know what 3 and 4 think they're celebrating....
440, stock rebuild, electronic ignition. Autolite AP85s.
Any ideas?
#3 looks extremely oil fouled.
All my past experiences have concluded that Autolites and mopars don't go together well.
I ran autolites all the time with no issue in stock and modified mopars. That is an old wives tale.
While the pligs are out, do a compression test, check the pcv for pulling oil, if all is well, consider a possible intake pan leak sucking oil.
It looks like 3&4 are oil fouled. Most likely valve seals or intake gasket. :yesnod:
PCV pulling oil would have all of the plugs oily....not just the two pictured. ;)
Ron
So.....a new valley pan is in my future? :-\
Do you guys use a gasket with the pan? Maybe sealant?
The SM says just pan. I've tried it both ways, and man, it's a tight fit to get a gasket in there.
I use the pan and rtv on both sides.
Okay....so I replaced the valley pan today. So much fun.
While I had it opened up, I took a look at the inside of the heads.
None of them looked particularly tidy, but 3 and 4 looked really bad. This is a picture of 4.
Now...I'm not a mechanic by a quite a stretch, but something tells me that oil puddling on top of your valve isn't a good thing. Yes, that greenish looking area is oil. I took a long Qtip and soaked up some of the fluid. It's oil.
So. Leaky valve stem seals? :'( :brickwall:
Quote from: HeavyFuel on May 16, 2020, 08:25:11 PM
Okay....so I replaced the valley pan today. So much fun.
While I had it opened up, I took a look at the inside of the heads.
None of them looked particularly tidy, but 3 and 4 looked really bad. This is a picture of 4.
Now...I'm not a mechanic by a quite a stretch, but something tells me that oil puddling on top of your valve isn't a good thing. Yes, that greenish looking area is oil. I took a long Qtip and soaked up some of the fluid. It's oil.
So. Leaky valve stem seals? :'( :brickwall:
That oil could still be from the intake gasket
Quote from: cdr on May 16, 2020, 08:38:44 PM
Quote from: HeavyFuel on May 16, 2020, 08:25:11 PM
Okay....so I replaced the valley pan today. So much fun.
While I had it opened up, I took a look at the inside of the heads.
None of them looked particularly tidy, but 3 and 4 looked really bad. This is a picture of 4.
Now...I'm not a mechanic by a quite a stretch, but something tells me that oil puddling on top of your valve isn't a good thing. Yes, that greenish looking area is oil. I took a long Qtip and soaked up some of the fluid. It's oil.
So. Leaky valve stem seals? :'( :brickwall:
That oil could still be from the intake gasket
:scratchchin:
I hope you're right!