2007 wr450f leaking coolant
Posted December 29, 2008 - 09:28 AM
I have had a small coolant leak on the right hand side of my bike just below and to the right of the oil filter housing.
I have had it since new and it seems to disapear when the bike is warm.
Thanks in advance
Posted December 29, 2008 - 09:48 AM
Posted June 01, 2009 - 03:29 PM
Posted June 03, 2009 - 08:01 AM
exactly.... same thing happened to me.
I own a 2007 Wr450F and had that exact same problem. I fixed it by removing the 4 bolts for the water pump housing, loosening the 2 hose clamps that go to the lower part of the rad. Be careful not to tear the gasket unless replacing anyway. when the housing is off remove the impellar, you may need to break it loose by giving the ratchet a quick shot counter-clockwise. when impellar is off remove washer. now use a small flat screwdriver to pop out the seal. when the seal is popped out you will see a small hole that is where the antifreeze is leaking from. when you have the seal in your hand, get a deep socket that fits the outside edge of the seal. slide the seal over the impellar shaft to lightly seat the seal. take the deep socket and put directly over the seal and use a small hammer to lightly tap seal into place. you do not need to change the rear seal. now put back the washer, impellar, gasket (if replacing), housing, bolts, and tighten hose clamps and fill rad. your leak should be gone