May 20, 201412 yr hi my 2003 sherco 250 when running has a small slow drip comim out of small hole under water pump casing.iv heard this is probably.seal failing..also I filled radiator to spout. .could there b too much water which is why its drippin.
May 20, 201412 yr Topic moved. Please post bike-specific questions in the relevant bike forum as per red instructions on forum index.
May 20, 201412 yr too much coolant would blow out passed the cap if needed to , the hole is to let it out when an internal seal fails ,replace seals and check/replace bearings
May 20, 201412 yr Seal failed or shaft has grooves worn in it from the seal, easy job to change the seals & they aren't that expensive. I'd replace the bearing while you're there & hope that the shaft isn't grooved as they aren't cheap
June 13, 201412 yr FYI Due to caviation in the pump, small pieces of the paint in the pump cover got loose on my 2012 ST 2.9 and soon ended up in the outer seal causing leakage. After removing all the paint on the inside of the cover and flushing the system it was all fine again. On later spare parts, the inside of the cover were no longer painted gray.
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