Hole in Valve Cover Coil pack area

Morbo2999 · 09-18-2024, 08:49 PM

After a great long while of limited driving, I am finally in the process of pulling the head to see if coolant in cylinder 1 is due to head gasket or block. I wanted to get opinions on my valve cover. I noticed a bunch of grey "soot" down with the spark plugs as well as lining the hole where the coil packs go in. Cylinder 3 and 6 have holes what I can assume is burnt through, most likely from a coil pack arcing, again, assumption.

I do not see the ignition coil sleeves that are referenced on page 113-5, but I assume those are for the plastic valve cover and not the magnesium valve cover like I have.

So, is this cover toast?

Cyclinder 6:
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Cylinder 3:
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Soot

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Thank you!

Morbo2999 · 09-19-2024, 07:10 PM

Lots of searching with search terms that are fairly general, so lots of reading, but I finally ran across this post and it seems no one was concerned about the hole.
https://www.e90post.com/forums/showt...=Coil+pack+arc

There are no cracks or holes that lead inside the cover, so I’ll probably clean it really well and try the JB Weld the holes to seal them back up.

09-18-2024, 08:49 PM	#1
Morbo2999 New Member 1 Rep 17 Posts Drives: 2006 330i Join Date: May 2008 Location: Canton, GA iTrader: (0)	Hole in Valve Cover Coil pack area After a great long while of limited driving, I am finally in the process of pulling the head to see if coolant in cylinder 1 is due to head gasket or block. I wanted to get opinions on my valve cover. I noticed a bunch of grey "soot" down with the spark plugs as well as lining the hole where the coil packs go in. Cylinder 3 and 6 have holes what I can assume is burnt through, most likely from a coil pack arcing, again, assumption. I do not see the ignition coil sleeves that are referenced on page 113-5, but I assume those are for the plastic valve cover and not the magnesium valve cover like I have. So, is this cover toast? Cyclinder 6: Cylinder 3: Soot Thank you! __________________ Carl ----------- 2006 330i
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09-19-2024, 07:10 PM	#2
Morbo2999 New Member 1 Rep 17 Posts Drives: 2006 330i Join Date: May 2008 Location: Canton, GA iTrader: (0)	Lots of searching with search terms that are fairly general, so lots of reading, but I finally ran across this post and it seems no one was concerned about the hole. https://www.e90post.com/forums/showt...=Coil+pack+arc There are no cracks or holes that lead inside the cover, so I’ll probably clean it really well and try the JB Weld the holes to seal them back up.
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