 So hey guys I thought I'd show you my 1996 Polaris Ultra 680 now it may not look like one I had I got this thing for free apparently it was crashed left to sit in a barn for five years and forgotten about so the guy I got it from said it should run so I went through clean the carbs got everything all working got the engine fired up and never had a 680 triple before and as you can see from the hood that doesn't say ultra on it it was crashed right here and this is all pushed in this is my first Polaris snowmobile so I thought it sounded pretty cool when it fired up let me uh fire her up for you and let me show you what it does turns out what I thought was cool it turns out not to be normal pop the hood for you so I thought when it fired up it was sucking in air like a diesel and it would whistle and I'm like oh that sounds cool it sounds like it's got a lot of power well it's not supposed to make that noise let me fire it up for you and show you what I mean she said only a little higher right now I'm gonna have to adjust that but yeah when I give her throttle she would whistle like a diesel and all right cool turns out the uh the 96 Polaris 680 Ultra is known for the water pump going after about 3000 miles on it so what you're hearing is the bearings and the gear uh whining or whistling I don't have any leaks anywhere so I know I'm good there but uh I ordered the part and I'm gonna go ahead uh take this apart and I'll I'll show you where it is it's it's mounted to the front of the engine if you never had to take one off so I'll have to remove the exhaust get everything out of the way so I can get down by the the water pump but I just wanted to fire it up for you guys so if you guys are questioning hey is it uh what's going on with my sled why is it whistling there's uh there's bearings there's a shaft and an impeller all on your water pump and uh this thing's been sitting for five years so I'm guessing the the bearings probably got a little rusty I'm sure they're probably squealing on the shaft I'm gonna take this bad boy apart and I'll show you how it's done first of all to get the exhaust off I don't know if you guys ever see one of these this is actually uh for your rear brakes your rear drum brakes it's to take the spring off you clamp it on the pad and clip the brakes uh I like to use that to get the springs off the exhaust just grab it and you pull it looks all pretty slick you don't rack your knuckles all up it's like that so I'm gonna go ahead finish taking this apart and I'll take all the springs off of all points of the exhaust including up here see there you got the three springs here a couple springs there a couple holding down I'm gonna go ahead pull that out take the exhaust stoned off so I can access the water pump all right once you get that done don't forget to unplug your your wires for your muffler and I got this part off already and uh this is uh something new um turns out I think I am leaking a little coolant all right so I got everything unplugged I'm gonna pull this out I'm gonna show you I don't know if you can see in the camera where are we here I got a little bit of kind of milky uh oily residue that's telling me coolant's getting in the exhaust good thing I caught it when I did all right so here's the water pumped on here water hose right underneath the exhaust on the other side there is a sight window and mine's actually pretty dark so it's hard to tell it'll let you know if there's coolant in the oil this does take oil in the pump I believe it's uh zero w 40 uh Polaris because there's a big gear in there so I'm gonna have to take the hose off there's a couple bolts and come off and uh just all pull out nice once I uh once I get it out I'll show you that sight window all right so kind of hard to see but you got a bolt right in front the water pump and then there's two on the other side I'll take you around see where the sight glass is down at the bottom there's a bolt there and there's a bolt right there so I can pull those three bolts on and hopefully she'll pop all right now I see why snowmobile mechanics get paid so much there is one more bolt right down there all the way down here I can't even uh I mean you can see it it's right below that uh that screw and it's really hard to get to now it'd be a lot easier if you took the white or uh the triple uh I guess you can't call it a white pipe but the pipe off first I didn't want to buy another gasket set so I didn't take that off um so I'm just working on this one bolt yet and uh try to get around so I got some bloody knuckles out of it but uh got a little bolt loose I had to knock this a little bit because that was pretty tight and uh she should come free pretty quick here I'm just gonna have to pop this with a hammer a little bit and that's a pop right out and there's a o-ring behind it all right now I can get a better shot of it I got out so that one bolt in the front right here one bolt on the bottom that was a knuckle breaker here and then the two here there you have it one water pump removed and uh the new ones should be coming in shortly right guys there you have it I've got the new one installed um don't forget to uh put the oil in you got the oil cap right there you can see that silver silver bolt and then you've got your uh sight glass on the side at the bottom of that round black thing just put a ball a couple ounces of oil in there uh top her off before you install it make sure you uh clean off the surface is really good uh put a fresh gasket on so here's the old one um you want to make sure uh I put in a used one it was about 180 bucks make sure you clean off all that surface off real nice uh you want your new gaskets to adhere to that and uh put a little gasket sealer on there and uh once again it was uh one two three four bolts and then here's the oil fill nut right here and your sight glass here you just fill that up to the top uh with uh zero w 40 oil like I said earlier sorry I couldn't get a good video of uh me installing it it was just tight quarters and my hands were in the way and also make sure that the o-ring on there was in decent shape um mine was uh pretty good I just put a little oil around it kind of freshened it up and then that slid back on the shaft there's a better picture of it in the manual and see the uh water pump has the four bolts one two three four and then the lower picture which is what I couldn't show you is you got the coolant rail and that pipe that comes out the water pump slides right on that yaw rings over there uh I couldn't get in uh the camera and get a good shot of it so I figured I'd uh take these pictures right off the manual and one thing to keep in mind too is after you install your water pump don't forget to top off the coolant and bleed the air out of the coolant lines there's a bleeder screw right there so you crack that open there's a hole in it uh start topping off your coolant and uh the air will rush out as you're topping it off uh actually the uh Polaris book recommends starting it and letting it circulate uh well that's cracked open I didn't do that because I didn't want coolant flying all over the place so I just cracked her open as I filled it up I waited to see coolant leak out of that uh that little hole tighten her up and uh topped it off again and uh took her for a test run and yeah I can see actually need to add a little bleed everything out and you should be good to go if you don't bleed it out uh it's going to cause overheating issues because there's going to be a air pocket trapped in the hose somewhere and it won't cool properly all right gonna give her the old he hope we'll start it and uh you can hear it I hope you got that whirling noise so if you got that whirling noise sound like uh you know when I started this up it sound like a whistling diesel uh you know it's the water pump uh it's either that or possible crank bearings also uh check your exhaust make sure uh you didn't have a squirrel's nest in there sometimes uh nuts and uh you know nest or whatever could get trapped in your exhaust and that could cause a whistling noise as well so I hope this video helped you out I mean hundreds of videos on Polaris four-wheelers and I thought I'd shoot one on uh Polaris snowmobile uh two strokes it's all pretty much the same the same idea you know except this has three cylinders you know you got your mechanical water pump everything's all similar so for me it wasn't that hard to figure out just thought I'd shoot this quick little video um let you guys know you hear a whistling noise because you know I didn't know at first I had to do a bunch of research and read a bunch of forums and finally uh figured it out so hope this helped you out thanks for watching