I have �a Hesse Hornet air compressor . These are basically a L134 Jeep engine running on 2 cy's and pumping air on the other 2. � I want to check timing and note there is a "pointer" on the block right over the front pully with a T �and 5. �OK, TDC and 5 degrees before TDC, I assume. �Now I need a mark on the pulley --BTW it is a double pulley, although only on is used for the governor --no alt or gen. �There is a small V notch on the inside pully. �Is this the mark I �need to time it? �thanks �