wrote:
Releasing the which is
why they're so inaccurate when boxed at the factory.

Dan

Which is why I prefer bending beam type torque wrenches. At least the
stiffness of steel won't change with time. If it returns to zero, it
should be OK to use again. With the detent/click type, you never know,
although I don't see where returning them to zero will reduce any
internal plastic deformation. Steel doesn't creep at normal
temperatures.


One minor additional thing - Occasionally also clean the sparkplug
helicoil threads in the cylinder. Somewhere (a surplus tore as I
recall) I found some small wire brushes about 3/8 inch dia that could
be chucked into an electric drill and slowly rotated in the threaded
hole to clean the crud out of the threads.