Hi guys, in the UK community we are having some issues with clarifying engine timings.

In one universal manual it dictates the F indicates TDC, on another the T dictates TDC, when I've had my head off I'm sure F was definitely TDC.

So we need a breakdown of what really means what for personal use.

Also Can anyone explain what the || lines mean.

Also you have two lines on the camshaft wheel, they are inline with each other, one line has an F, any clarification of these.

Kind regards,

Alex