duncan25 Posted October 18, 2009 Report Posted October 18, 2009 Friend of mine has an 04 banshee that runs great and everything but when it gets wormed up it blows oil out the overflow..... Can anyone help? what could be wrong? Quote
HelmanRacingEngines Posted October 18, 2009 Report Posted October 18, 2009 Friend of mine has an 04 banshee that runs great and everything but when it gets wormed up it blows oil out the overflow..... Can anyone help? what could be wrong? Crank seal on clutch side could be leaking or leeking pressure betwean cases on trans side. Just a conple things to check. Quote
fastbanshee8 Posted October 18, 2009 Report Posted October 18, 2009 Did he overfill it by chance? Quote
AKheathen Posted October 18, 2009 Report Posted October 18, 2009 well, if it is a crank seal, I'd imagine that it would do it hot or cold. that being said, check the hose routing. the crank hoses should have one coming from the water pump cover and one coming from the rear of the case. those 2 "t" together into one hose by the carbs. the end of that hose should just go up by the radiator and hang out there as a breather, attached to nothing. the little hoses attached to the radiator should be separate. the one that goes to the top of the radiator, not @ the cap, goes to the top of the head, the one @ the cap goes to the bottom of the overflow bottle, and one from the top goes back up by the radiator and connects to nothing. if you mix these up, you will get coolant in your gear oil, and possibly visa-verse. if this is the case, and it's been run up to operating temp, then the gear oil should be milky sludge and oil could be floating on top of the radiator, or sludging up there after a bit, and you will have to flush both thoroughly. also, if the hoses are correct, the water pump seal can push coolant into the case as well Quote
sToCk7miLL Posted October 18, 2009 Report Posted October 18, 2009 well, if it is a crank seal, I'd imagine that it would do it hot or cold. that being said, check the hose routing. the crank hoses should have one coming from the water pump cover and one coming from the rear of the case. those 2 "t" together into one hose by the carbs. the end of that hose should just go up by the radiator and hang out there as a breather, attached to nothing. the little hoses attached to the radiator should be separate. the one that goes to the top of the radiator, not @ the cap, goes to the top of the head, the one @ the cap goes to the bottom of the overflow bottle, and one from the top goes back up by the radiator and connects to nothing. if you mix these up, you will get coolant in your gear oil, and possibly visa-verse. if this is the case, and it's been run up to operating temp, then the gear oil should be milky sludge and oil could be floating on top of the radiator, or sludging up there after a bit, and you will have to flush both thoroughly. also, if the hoses are correct, the water pump seal can push coolant into the case as well x2 AKheathen couldent have said it better Quote
duncan25 Posted October 18, 2009 Author Report Posted October 18, 2009 its not over full and where is never any more oil on the stick than we start with just less but about the radiator im not sure i will have to look in it and see what it looks like..... Quote
Larry's Shee Posted October 19, 2009 Report Posted October 19, 2009 Where do you have vent routed to? Both Tee together then go up to steer stem/ radiator area. Quote
robert0762 Posted October 20, 2009 Report Posted October 20, 2009 It just happened to me I had to replace crank seals Quote
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