Hollister_Hitman Posted July 17, 2006 Report Share Posted July 17, 2006 I just put a maier front race fender on my 01' shee but After about 4 min of riding coolant starts to boil out of the radiator overflow and onto the exhaust. Will an aftermarket water pump solve this. I also have stock exhaust and I am thinking that isn't helping the motor stay cool compared to aftermarket exhaust. Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted July 17, 2006 Report Share Posted July 17, 2006 The stock exhaust system holds heat at the front of the engine, and it also doesn't allow for very good air flow. Yes I know, the Banshee is liquid cooled, but anything you can do to inprove air flow over the engine will help. Try some engine ice for coolant. A lot of people on BHQ use it, and say it helps tremendously. I've never used it, so I don't know personally, but I'm not going to dispute the claims, until I have some facts to back it up. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 17, 2006 Report Share Posted July 17, 2006 The stock design overflow tube to the bottle behind the toolkit traps air and coolant and can cause it to spill out from being trapped. Some people remove this overflow bottle all together. I relocated mine to the front inside the frame. Since you have stock exhaust, I'm assuming the rest of the quad is stock too...I highly doubt it's really overheating... Quote Link to comment Share on other sites More sharing options...
Hollister_Hitman Posted July 17, 2006 Author Report Share Posted July 17, 2006 The stock exhaust system holds heat at the front of the engine, and it also doesn't allow for very good air flow. Yes I know, the Banshee is liquid cooled, but anything you can do to inprove air flow over the engine will help. Try some engine ice for coolant. A lot of people on BHQ use it, and say it helps tremendously. I've never used it, so I don't know personally, but I'm not going to dispute the claims, until I have some facts to back it up. I will try the engine ice The stock design overflow tube to the bottle behind the toolkit traps air and coolant and can cause it to spill out from being trapped. Some people remove this overflow bottle all together. I relocated mine to the front inside the frame. Since you have stock exhaust, I'm assuming the rest of the quad is stock too...I highly doubt it's really overheating... Well it's running hot enough to boil out coolant. That means it is running hotter than it should. Should I buy a Pro Design Mega-Flow Impeller from rocky mountain Also what about a Pro Design Super Cooler - In Line Water Cooler from rocky mountain Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted July 17, 2006 Report Share Posted July 17, 2006 I actually have to ditch the engine ice in winter time because I can't get the damn thing above 100 Quote Link to comment Share on other sites More sharing options...
DRI4life Posted July 17, 2006 Report Share Posted July 17, 2006 maybe your race fenders block airflow to the radiator.. do you have vents still on the side of the tank? those help.. and the impellar doesnt push more water. just more reliable Quote Link to comment Share on other sites More sharing options...
2003LimitedBanshee Posted July 17, 2006 Report Share Posted July 17, 2006 maybe your race fenders block airflow to the radiator.. do you have vents still on the side of the tank? those help.. and the impellar doesnt push more water. just more reliable Actually the impellers are more efficient because they are a closed vain design. The stock plastic impeller, besides apparently having a tendency to strip is an open center vain design. Thus there will be some cavation near the shaft, whereas the Pro Design etc is a closed center, so it is more of a positive displacement design. Quote Link to comment Share on other sites More sharing options...
ssanddemon Posted July 17, 2006 Report Share Posted July 17, 2006 You might try replacing the radiator cap, the spring can get weak over time and fail to hold the required pressure. This will cause the coolant to boil at a much lower temperature. Since you have stock exhaust, I'm assuming the rest of the quad is stock too...I highly doubt it's really overheating... Actually, the opposite is true... the less power the engine has, the harder it has to work to move the bike. When mine was new and stock it overheated like a sonovabitch. Making more power caused the motor to heat up less since it didn't have to rev to the moon and stay there to get to the top. Now mine never overheats even when climbing dunes nonstop in 100* heat, no engine ice needed. Quote Link to comment Share on other sites More sharing options...
DRI4life Posted July 17, 2006 Report Share Posted July 17, 2006 Actually the impellers are more efficient because they are a closed vain design. The stock plastic impeller, besides apparently having a tendency to strip is an open center vain design. Thus there will be some cavation near the shaft, whereas the Pro Design etc is a closed center, so it is more of a positive displacement design. ah thats good info.. lol :beer: Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 17, 2006 Report Share Posted July 17, 2006 You might try replacing the radiator cap, the spring can get weak over time and fail to hold the required pressure. This will cause the coolant to boil at a much lower temperature. Actually, the opposite is true... the less power the engine has, the harder it has to work to move the bike. When mine was new and stock it overheated like a sonovabitch. Making more power caused the motor to heat up less since it didn't have to rev to the moon and stay there to get to the top. Now mine never overheats even when climbing dunes nonstop in 100* heat, no engine ice needed. To each is own...I've never seen a stocker overheat, and I used to hold mine wide open for a good minute or so back at my old property up north.... I would say there is a balancing point...between power and heat. I think you'll agree...a built motor doesn't have to work as hard...however, once you start upping the compression, advancing the timing, it's going to run hotter...albeit work easier... So, it's a trade off in my book. I run straight water in mine. But...a cub w/ a NOSS head has MUCH better cooling capacity than a stock jug/stock head... Quote Link to comment Share on other sites More sharing options...
sheefreak Posted July 17, 2006 Report Share Posted July 17, 2006 I don't think you should be looking for bandaids here. Cut fenders should not cause it to overheat. The cooling system is adequate for a stock setup. Did you mess w/your jetting at all? Take a look at your plugs, do they indicate a lean condition, maybe you have an air leak. When is the last time you changed your coolant? Once you have a boil over you should change your coolant anyway. I love engine ice, definately give it a shot, but something is not right. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 17, 2006 Report Share Posted July 17, 2006 I agree... Mine have always been cut. T5 pipes, timing, etc. Beat the hell out of it, non-stop drag racing, and I've never overheated it yet... You might want to check and see if that plastic gear for the water pump impeller broke off. That certainly would cause it to boilover... Quote Link to comment Share on other sites More sharing options...
375hp banshees Posted July 17, 2006 Report Share Posted July 17, 2006 when does it boil over, they don't cool w/o air flow stock or modded. no air flow ie. idoling, going real slow, in soft sand it low speeds :baseball_sweat: Quote Link to comment Share on other sites More sharing options...
Hollister_Hitman Posted July 17, 2006 Author Report Share Posted July 17, 2006 when does it boil over, they don't cool w/o air flow stock or modded. no air flow ie. idoling, going real slow, in soft sand it low speeds :baseball_sweat: It boils over at high rpms, then I just try to go about 15, 20mph to let it cool down. I just got the race fenders and went to pismo (1st time at the dunes) and noticed, I never had any problems with my stock fenders other than when I was doing donuts on the pavement for 5 min. Thanks for the the advice everyone Quote Link to comment Share on other sites More sharing options...
sheefreak Posted July 17, 2006 Report Share Posted July 17, 2006 Don't blame the plastics. First time at the dunes tells the whole story. Sand robs horsepower, therefore the motor has to work harder, and runs hotter. Does this mean your shee is not worthy of the dunes? No, just means whatever is slightly wrong finally got a chance to show its face because you were demanding more from the motor. Look over some of the things mentioned above, and get off the idea of the plastics causing your problems. I would look at your plugs first cause it's easy, make sure neither side looks lean(make sure you look at both). Then work you way into the cooling system(free flowing, no obstructions, etc.) My bet is your stock impeller is either broken, or gear is stripped and not pushing enough liquid. The stock cooling system is adequate for a stock bike, you do have a problem. Quote Link to comment Share on other sites More sharing options...
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