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106 1.1 - Blew Spark Plug from engine

2K views 6 replies 6 participants last post by  storeman 
#1 ·
Morning All,

A friend of mine has a 1.1 zest that has blew a spark plug clean out of the engine.....

What could have caused this? and how can it be fixed?

Reading bits online, could it be that its overtightened and the ali has weakened or maybe water is the coil pack?

Thanks In Advance
Ross
 
#4 ·
It looks highly likely that thread in the cylinder head has been damaged.All you can do is try a new plug,it will either screw in and torque up,or it wont.
If its stripped have a word with these guys Welcome to the Thread Doctor Website - Mobile Thread Repair, Hampshire, Berkshire, Surrey, UK
or someone similar if your out of their area.
They will fit a helicoil (New thread) into the head and make it as good as new.I`ve just used them today to fix a stripped sump drain plug.
 
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