That is the weep hole for the water pump. It means the seals are bad in the pump, and it has to be replaced. Most water pumps do have a weep hole on the pump itself. If it leaks from there it usually means that the water pump seal is going bad and soon you will need to replace the waterpump. At least that has been my experience. :-( Some water pumps do have holes either on top or bottom of it. If coolant starts coming out of the hole then it's time to replace the pump.
how to remove a power steering pulley on a 1997 Nissan altima
replace 1996 nissan 200sx se 1.6 tension pulley
it is time to change bearing on that pulley
1998 Nissan pathfinder crankshaft pulley bolt is right handed.
Take off the sockets and remove the pump pulley.
Most of the time it is because the water pump is going out and it is leaking where the pulley is on the engine.
on the dampener pulley
is it a pintara
Either someone has used a belt dressing that left a residue on the pulley or there is a bearing oil seal leaking in the vicinity of the pulley. A few more details of the pulley's environment would be helpful.
The 1996 Nissan Maxima timing marks can be found on the main pulley, on the front of the engine. The timing marks will be scattered around the outside of the pulley.
there should be and idler pulley next to the A/C pump loosen the nut in the center of it do not remove it the pulley will fly off. under the pulley there is a bolt that loosens or tightens up the belt run it all the way up and the belt should come right off
To replace the belt on a Nissan Frontier, first loosen the idler pulley of the belt and remove the bolts. Then slip the replacement belt onto the pulley and put back the bolts.