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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > 330i misfire



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      08-09-2018, 07:13 PM   #23
Will_460cs
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Quote:
Originally Posted by Roadrebel View Post
It's been three days since I changed the plugs and coil packs and there is no hint of a mis-fire anymore. The engine has never run better and pulls strongly throughout the rev range.

The plugs were in a dreadful state with burnt insulators and huge gaps. Plug 6 had signs of tracking down the outside. I've never seen plugs so bad.

I found a crack in the valve cover which I have filled with epoxy for now.

Thank you all for your help.
Where was the crack don't suppose you have a pictures?
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      08-13-2018, 11:13 PM   #24
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it was just behind the oil filler running down vertically towards a bolt hole.
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      08-14-2018, 03:56 PM   #25
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thanks...
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