Coolant is coming from the weep hole when it is first started. I looked in the manual and it says to replace the water pump seal and tranny seal. Is this correct and if so how do I do this and should I also replace the impeller with the newer 06 model with hole in it and the shaft. I just got this bike so any help would be greatly appreciated. Thanks.
Do you have detailed instructions on how to do some or all of this?
Yeah i got u kid. well depending on wat bike u have, which i dont no. u mite have to replace all the gaskets around that area. just take off the waterpump cover replace the seal. write me back.im done answerin **** today peace
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Coolant leaking from the "weep" hole indicates that the seals are out on the water pump. That's actually what the hole is for, to monitor the condition of the water pump seals. Pretty simple fix with the factory repair manual. Replace the impeller shaft and bearings along with the seals while your in there. Good luck!
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.
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.