I'm putting my head back on and I have noticed that the time gear clicks every full rotation. Is this normal? It also stops sponging for a second. I'm turning it by hand btw

__________________
84 300sd 2.47 dif 360k
26 mpg needs lots of love
given to me in pitty

89 civic hatchback auto 140k
33mpgs soon to be low to mid 40's
been in the family since mile 1

85 300d with unknown knock. driven over 30k with knock and still going. sold for $800