RE: Waterpump Seal Questions
Posted September 07, 2009 - 03:03 PM
Posted September 08, 2009 - 01:17 PM
Posted September 09, 2009 - 05:51 AM
There's a bit more info on it here
Just ignore the easy fix idea
Posted September 09, 2009 - 03:29 PM
Im going to clean up the shaft with some fine emery cloth.
If you don't replace the shaft, you will be pulling it apart again with a weeping weep hole. Get a new shaft like tribalbc says. Trust us, we have been there many times before.
Posted September 09, 2009 - 05:27 PM
Posted September 10, 2009 - 02:20 AM
Posted September 10, 2009 - 06:24 AM
can you please post a close up pic of the outter seal with the impeller off please? like i said the seal i installed has barrel rolls inside of it which means it had to go in opposite then the way I installed it. I followed the instructions yes... tapped in the new seal by using the old seals, and the bearing by the outter race like the book says.
Sorry I don't have any pics. It will be at least a month before I'm in there again.
Are you sure the seal didn't get nicked anywhere ?
I know when I did my countershaft seal the first time my new seal got the tiniest nick and she spewed like a mother. Second time was the charm...
I would get new seals, shaft, bearing and give her another go.
If your shop is far away maybe order a couple sets of seals, they're cheap anyways.
Posted September 10, 2009 - 06:46 AM
Looking from the rear of the bike.
OIL >(Seal) water Pump (Seal)< Coolant
> shows the cavity of the seal towards the oil in the engine.
< shows the cavity of the seal towards the coolant on the right of the bike.
The seals are very susceptible to rips and tare when you install them, I use a bit of grease on the seal when I TWIST them on the shaft. It also helps if you heat them up a bit before you install them. I just put them in my pocket while I'm pulling things apart, a little heat goes a long way.
Good luck and let us know how it goes.
Posted September 10, 2009 - 01:51 PM
Posted September 10, 2009 - 03:17 PM
Thanks, I find it strange thought that my seal was installed wrong from factory, and the book is not worded very nice and poor pictures, I switched me seal around facing the lip inwards, and used my bike all day without any oil getting into the crankcase, so im more confused then ever, how can this be if it's wrong.......
The pressure on the seals are much lower than they are rated. The pressure on the coolant side is higher than the crankcase. If you are in cool weather and don't get the motor too too hot then you can run the seal which ever way you want and they will be fine.
Good to hear you got it all sorted out. Enjoy
Posted September 11, 2009 - 02:24 PM
The thing is that there is a space between the two seals that leads to the outside through a hole in the case cover, below and behind the pump cover. It is placed there so that if any of either fluid should leak, it leaks to the outside before it can force its way past the other seal to cross contaminate oil with coolant, or vice versa.
If you have coolant in the oil, it could be coming from the passage leading from the case cover to the crankcase, the passage from the cylinder to the crankcase, the head gasket, or a hole in the head cylinder, or crankcase that allows the transfer of coolant into the oil. Unless someone has deliberately closed off the escape hole, the water pump isn't the culprit.
Having said all that, be certain when dealing with a water pump leak that you check the bearings in the balancer shaft: