Re: Finding/Confirming TDC: Inquiring Minds Want to Know
Posted: Fri Apr 23, 2021 7:20 pm
Many years ago I used a motorcycle ignition micrometer that screws in the spark plug hole to verify TDC markings on an engine with a bent timing pointer. The micrometer has a rod that is left loose an left long so when the piston comes up it pushes the rod up leaving it @ the height of TDC. We rotated the piston down, adjusted the micrometer to something like 0.010â€, & rotated the crank both directions until the piston touched the micrometer & marked where the pointer lined up with the crank. TDC is half way between the marks. Adjusted the pointer & everything worked fine.
Peace,
Pat
Peace,
Pat