Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).

Spark plug broke in cylinder

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Old Aug 13, 2017 | 02:03 PM
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Spark plug broke in cylinder

never mind, my questions have been answered.
 

Last edited by That; Aug 15, 2017 at 02:34 PM. Reason: question was answered
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Old Sep 18, 2017 | 06:37 AM
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Mine did too. At about the same time yours did. What did you find out & how did you fix the subsequent issues? I ended up nearly rebuilding my whole engine. I'm still having misfire issues. I hope to have that worked out soon. I don't understand how the computer can log misfire codes and not throw up a check engine light.
 
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Old Sep 18, 2017 | 08:26 AM
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I ended up driving out the broken spark plug with a extractor and installing new spark plugs and getting some used cool packs. I also did a oil change and cleaned up the spark plug hole threads to just make sure I had a clean surface.
 
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Old Sep 20, 2017 | 08:52 AM
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So not really as bad as mine then. The entire end of my spark plug broke off INSIDE my cylinder while it was running. It chewed up an exhaust valve and grooved the cylinder wall a bit. Thankfully it made it through the turbo cleanly.
 
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Old Sep 20, 2017 | 08:53 AM
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I can't compare to that, have you gotten it repaired yet?
 
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