Question edited and turned around for clarity.
Question moved from Cars and Trucks to a Wood Chipper Cat.
No torque specs, tight and use thread locker.
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My bc1000xl was doing the same thing all gauges working fine engine kept cutting out about every 2-3 minutes found water temp sensor wire that goes to the computer and disconected it. Problem fixed but get a new sensor as soon as possible in case of a real overheat