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Sportsman 700 coolant leak

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Old 02-26-2009, 04:37 PM
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Default Sportsman 700 coolant leak

just bought 02 700. changed all fluids and filters. inspecting drive belt and found fresh antifreeze in cover and behind drive clutch. Is there a seal behind the backing plate that could leak and cause this? I'm reasonably sure (90%) that I did not spill, especially way back there!
I have an O&M and service/repair manual and am still unsure.
 
  #2  
Old 02-26-2009, 07:58 PM
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Default Sportsman 700 coolant leak

<div class="FTQUOTE"><begin quote>Originally posted by: mnbearhunter

just bought 02 700. changed all fluids and filters. inspecting drive belt and found fresh antifreeze in cover and behind drive clutch. Is there a seal behind the backing plate that could leak and cause this? I'm reasonably sure (90%) that I did not spill, especially way back there!

I have an O&M and service/repair manual and am still unsure.</end quote></div>

Could have leak at thermostat o-ring and seeping down, also at return hose clamp itself at thermostat or possibly sensor below thermostat cover. Clean engine and check while at idle for leaks
 
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Old 02-27-2009, 08:32 AM
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Default Sportsman 700 coolant leak

Thanks. Much appreciated.
 
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Old 02-27-2009, 09:11 AM
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Default Sportsman 700 coolant leak

I'll have to check that on mine as well... It doesn't seem to visibly leak but the coolant overflow tank needs topped off regularly. I haven't been able to figure out where its going to...
 
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Old 02-27-2009, 11:22 AM
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Default Sportsman 700 coolant leak

My '03 600 leaked a little drop of antifreeze at the bottom of the water pump cover and was hard to see. I found it by rubbing my hand underneath the housing cover and it came up wet.The cover for that year was plastic with a metal cover and the replacement was a solid piece of aluminum with a better gasket. I have seen that similar leak in almost every 02-03 sportsman. Worth a look....
 
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Old 02-27-2009, 11:28 AM
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Default Sportsman 700 coolant leak

When I stripped off all the plastic to inspect the unit I noticed the inside of the clutch cooling duct was coated with "wet goo". I noted it mentally but hoped it was just "mud". Now I'm thinkin coolant leak. As long as I have it stripped I'll get out the high intensity lights and wait for the inevitable drip. This poor thing has 4100 miles, 257 hrs and appears to never have seen a dealer since new. (TSB's not even done) It's ok. I'm an old hand at rescue 911. I'm a loyal & proud Polaris owner. I've ridden all the others and will stick with Polaris. I picked up two brand new Pure Polaris belts yesterday for $10 each. Also got a new Kolpin Bucket Hugger, Kolpin Soft rear rack pack, Kolpin Camo mitts and two new gaskets for the clutch housing, all for $115.00! The tires are fairly worn and dont meet my needs so I'm lookin for a set of all around snow/mud tires. Used preferably. Sounds like alot of guys like to get new so I hope to relieve them of the "old" set.
 
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Old 02-27-2009, 11:31 AM
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Default Sportsman 700 coolant leak

Pump cover is plastic. Someone has tried sealing with Hitemp RTV. I check it and see "wetness" but no leak per se. I'll make a planned purchase to replace and as soon as I see trouble I'll be ready.
 
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Old 02-27-2009, 11:37 AM
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Default Sportsman 700 coolant leak

The wetness is how mine was too. It is a slow process but it seems as though I was always adding fluid in the overflow. Some that I have seen have a small drip hanging on the bottom.The new one I bought from the dealer is all aluminum and has a better gasket. Easy to replace. My concern was if coolant is getting out, other water and debris might get in. Good Luck.
 
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Old 02-27-2009, 12:19 PM
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Default Sportsman 700 coolant leak

Good point about the in/out of junk. So, the aluminum cover doesnt have a weep hole?[img]i/expressions/face-icon-small-confused.gif[/img]
 
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Old 02-27-2009, 01:46 PM
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Default Sportsman 700 coolant leak

I'd have to check again but I don't remember seeing one........
 
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