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
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1998 Nissan pathfinder crankshaft pulley bolt is right handed.
it is time to change bearing on that pulley
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.
is it a pintara
on the dampener pulley
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
The idler pulley on a 2003 Nissan Sentra 1.8 is changed by removing the engine accessories, removing the drive belts, and loosening the retaining bolt. The pulley can then be removed from the vehicle and a new one bolted into place.
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.
The 2005 Nissan Altima auto tensioner pulley can be removed by removing the center bolt. You will need to hold the pulley stationary while you loosen the bolt.
Leaking?Wobble in pulley?
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.
Sounds like water pump needs replacing The main pulley is near the top of the engine. The water pump is toward the front of the engine. It is possible that water appears to be leaking from this pulley, but there is a manifold gasket right above it. Double check to find exactly where the water is exiting the engine block. My first hunch is a leaking gasket.
antifreeze is more likely to be leaking from the water pump and running down where it appears to leaking from crank pulley
There is a weep hole at the bottom just under the pulley where there will be a stain of coolant if it is leaking. Or unhook the belt and check the play of the shaft of the water pump.
The water pump has a weep hole on its bottom edge near the pulley, and that will be evident as leaking because the inside of the pulley will usually be greasy or muddy, and wet depending how long it has been leaking, and whether or not you were driving in a dusty environment while the pump was leaking. If the pump is leaking, it will be dripping from that weep hole If it is a leaking gasket, the inside of the pulley won't be as wet, and the leakage won't be from the hole, but right from the joint between the pump body and the engine block. I've also seen the leakage from the intake manifold gasket running down along the pump. You'll need a decent light, and get yourself in an awkward position to see all this.
Check for a slipping drive belt between encine crank pulley and AC compressor pulley.
Leaking? Pulley loose? Noisy? No coolant circulation?
I have a 98 Nissan SX that should be real similar. You have to first take the other belt off by loosening the top reae pulley and letting it slide down to release tension on that belt. The tensioning belt is on the firewall side. Once that belt is out of the way you can start on the alternator belt. Loosen the center bolt on the tensioner pulley, located high between the alternator and the crank. Then you should find the tightening bolt in front, below the alternator. I believe it's a long 5/16 bolt sitting at about a 45 degree angle. Back that off to let the pulley go up and release the tension on the belt. Then it should slip off and the new one should slip back in place. Then just retighten everything. Hint - to get to the pulley center bolt you will probably need to pull the passenger wheel and plastic splash guard.
No, but it can be replaced. I would recommend taking to a professional.
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.