[markids77]

Originally Posted by mrvette

Looks more like some 'maintenance' got away from someone....too mutch torque or cross threaded, in which case maybe using an impact??

Or simply left loose. I once bought a John Deere riding mower with a bagging system on it for $50.00 because the owner insisted the engine had blown shortly after he did a homebrew tune up. On inspection I noticed the spark plug had fallen out of the head. I put it back in hand tight, fired that mother up and drove it up on my trailer. It ran for several seasons with no other work required.