Typically it is the crankshaft seal which isn't too tough to replace other than you need an impact to remove the bolt holding the PTO to the crank. Once the PTO is removed, you can pry it out with a seal remover that you can buy at any auto parts store. Sometimes these engines will suck the seal between the block and sump case and that requires engine removal. A bunch of work, but still not horrible as these are pretty easy to work on.
More information would be helpful. Engine size, and if it looks like it's leaking from one pulley or several? My first thought is that the front seal is leaking around the crankshaft pulley. Other oil leak sources are the timing cover, the valve cover(s), or even a cracked cylinder head, could let oil trickle down and get slung around by the pulleys. What's the highest point of the engine that looks like oil is leaking around? Either way, it should be repaired.
Gym pulleys Window blinds elevator pulleys garage door pulleys
yes the do have pulleys
FIXED PULLEYMOVABLE PULLEYBLOCK AND TACKLEAdditonal answerFlat pulleys, v-pulleys, multi-V pulleys, jockey pulleys
Pulleys are simple machines.
Yes, the belt system has pulleys.
cuz they are called PULLeys
The plural of pulley is pulleys.
yes car engines are pulleys
A system of pulleys is called a block and tackle
Pulleys is the plural form; the singular is pulley.
Many people use pulleys in their jobs. The rides like Supreme scream, which go vertically up and down have pulleys in them. Elevators have pulleys in them, and people who ship cargo use pulleys in their cranes.