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Bruce
04-22-2017, 06:05 AM
Just a question - what is the small bolt/grub screw on the back of the cam chain tensioners for?

A26B
04-22-2017, 10:44 AM
Tensioners are "cocked" in a compressed state when installed. The plug is removed from the Tensioner Housing, a tool is inserted until contact with the Tensioner. A tap to the tool will release or "fire" the Tensioner, releasing the inner, spring-loaded plunger.

Never reinstall a "fired" Tensioner after removal. Severe damage such as broken camshaft, valve to piston contact, bent or broken valves & resultant major engine damage.