Dripping oil from weep hole at the bottom of from cover. What seal needs to be replaced.

Weep hole leak usually means water pump is leaking and often due to bad bearings and seal.

Hi, is this the weep hole on the water impellor cover? If it is you will need to replace the seals within the water pump itself, it is designed like this, aNy water leaking past the seals will exit via the weep hole, without this the water would contaminate the oil inside the gearbox, it is mportant you do not use this machine until the problem is rectified, paul

There is a round o-ring that seals the water pump to the motor (oil seal). Then there is a shaped cover o-ring that seals anti-freeze into the pump. The cover o-ring is also replaceable. If your pump has coolant leaking it is probably coming from a small weep hole in the bottom of the pump. Check where the leak is carefully, my guess is that the water pump seal is bad and you actually need to replace the water pump assembly. To see a break down of the pump look here.

http://www.bikebandit.com/houseofmotorcycles/2002-honda-vt750cda-shadow-ace-deluxe-black/o/m2894#sch94027

Most Yamaha water pumps have a "weep hole" on the bottom of the water pump housiing.
Basically your water pump shaft has a coolant seal and an oil seal where it is driven...the weep hole drains away any leakage between the cooalnt and oil seals so cross contamination does not occur.
You probably should look at rebullding the pump. Don't try plugging off the weephole to stop the loss...it will contaminate the oil system.

hi, sounds like the oil seal in the rocker cover has failed, remove the rocker cover and you will see a rubber seal, this seals the oil inside the cover, however when the seal fails around the spark plug hole, oil leaks into spark plug well and out of weep hole.

Hi, if the engine is leaking from underneath, its possibly oil pan gasket/ oil drain plug seal/ oil filter o ring needs replacing. The other leak you describe could be the bottom cylinder head gasket, if so the only solution is to replace it. I have this problem on mine, oil weeping from same area. cost would be about

Bad seal in the pump itself. It is like a weep hole in a water pump. It is letting you know it is time to be replaced.

hello
there are two different seals on the water pump. the oil seal and the mechanical seal. the oil seal helps seal out the oil from the trans case. the mechanical seal helps seal the coolant from going into the trans case, and vise versa.
the weep hole is there to help diagnose if either seal is faulting. so if coolant is leaking from the weep hole. the mechanical seal is faulting or if the oil seal is leaking oil will drip from the weep hole.
hope this is of some help. thank you.

Unless there is an abundance of oil this is normal.
If you tilted the machine to replace the coupling that could cause some oil to escape also.
There is a small hole in the top cover of the gearcase to release pressure. Sometimes a little oil comes out too.

hi if your engine 22R front engine first in side timing cover where engine bully fitted there is oil seal, next valve cover front side between cover and head there seal not like oil seal half cercle shap it makes leak also front side of the camshaft there is oil seal..