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Mend Mountfield Spark Plug Shot

my mountfield went bang?

hi, can you please tell me what this could be! i was cutting and all of a sudden it went bang and the spark plug shot out and took the thread of the c/head with it. any help please,

D.C
September 2008
Another thought has occurred - was the plug loose? If it was, (and there's no nternal damage), you might get away with a thread repair, or a new head.

phil_saunders@bigfoot.com

Phil Saunders
September 2008
Sorry to say your engine is probably scrap. The con rod has snapped (probably due to no oil and/or over-speeding), which has caused the piston to hit the bottom of the plug, forcing it out.

New engine required.

phil_saunders@bigfoot.com

Phil Saunders
September 2008

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