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Old 12-26-2012, 12:36 AM   #1 (permalink)
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Sled eating coolant?

Went riding last week filled my coolant up, was out riding today for maybe 15-20 miles sled was running awesome and then temp light on the dash comes on so we turn around start making r way bck to the house sled dies in the ditch was bogging major then just died check the coolant and its empty sled wldnt start. Waited 5 mins fired up drove it a half mile home and shut her off. The sled was just rebuilt this summer so I'm hoping its nothing major but was curious why the sled wld eat that much coolant! Doesn't seem normal that it wld go thru it that fast.

Sled is a 1998 Polaris xc 600
7009 miles less then 100 miles on the rebuild
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Old 12-26-2012, 01:02 AM   #2 (permalink)
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big question is where is it going? what do the plugs look like? is the track picked? all hoses good and secure? gotta find the leak first. when u rebuilt did u burp the cooling system?
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Old 12-26-2012, 08:03 AM   #3 (permalink)
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Does the exhaust smell sweat?Could you have pinched a O ring?
To 'Burp' the coolant you just jack the front of the sled up with the engine warmed up and the cap off!
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Old 12-26-2012, 12:45 PM   #4 (permalink)
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Plugs are clean went out this morning coolant tank did have some in there now but I topped it off but I did notice as I let it warm up some coolant coming out the exhaust hole

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Old 12-26-2012, 01:01 PM   #5 (permalink)
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Hoping I don't have to pull the heads again but I'm thinking it may be a pinched o ring this thing is just been a money pit ha. Exhaust doesn't smell sweet to me it runs and idles fine wasn't leaking a lot out of exhaust just a little bit I'm gunna pull the exhaust and see how much coolant is in there

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Old 12-26-2012, 05:48 PM   #6 (permalink)
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If there is anti dripping out the exh then it would smell sweet! And that would mean a pinched oring!
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Old 12-26-2012, 05:58 PM   #7 (permalink)
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Okay ill look into that here in the next day it two. So if its a o ring that's a fairly easy job to do? I didn't rebuild the motor and never have done a sled before but doesn't seem like a hard job to do

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Old 12-26-2012, 06:18 PM   #8 (permalink)
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Any way to tell if its a water pump seal without taking the pump out. Sled has 7k on it and I know those tend to cause problems with higher mileage

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Old 12-26-2012, 07:08 PM   #9 (permalink)
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If it didn't lose coolant before the rebuild, then look at the o-rings.
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Old 12-26-2012, 11:31 PM   #10 (permalink)
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If it is a pinched o ring do I need to buy a whole new gasket set then?

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Old 12-27-2012, 06:31 AM   #11 (permalink)
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No it's possible to just buy the Oring threw Cometrics! If it is the pump, there would be a drip into the belly pan from below it!
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Old 12-27-2012, 09:12 AM   #12 (permalink)
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You are definitely going to have to tear out your engine again. If you could smell a sweet smell when it was running, it was probably a leek in your base gasket. If that's the case, buy a new one and seal it up better. Otherwise, i would check to see if there could be a leak somewhere in your coolant line. Check to see if it was dripping somewhere.
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Old 12-27-2012, 11:58 AM   #13 (permalink)
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So I need the o ring for the cylinder head then right. I found a set at the dealer for 15$ a piece just wanna make sure I buy the right parts

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Old 12-27-2012, 12:08 PM   #14 (permalink)
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I wouldn't go buy anything until you find out what is wrong. If you already determined that the coolant is full and there is no air pockets than also confirm it is burning coolant in the exhaust than it needs to come apart to figure out what is happening.

When you take just the heads off you may find that its just one of those top o-rings, but it also might be a base gasket.

I would take it 1 step at a time start with the heads. But yes we are talking about the big o-ring on the top of the cylinder. or any gasket for that matter should be re-done or looked at.
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Old 12-27-2012, 02:02 PM   #15 (permalink)
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Okay found the problem its the o ring causing the leak picking up the new one this afternoon do I need to do anything special when I put the motor back together?

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Old 12-27-2012, 02:47 PM   #16 (permalink)
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If you just took off the Heads and not the cylinders? than no not really as long as the ports aren't going to snag a ring than go with it if they feel at all sharp pull the jugs and do it right the first time.

Make sure you are extremely careful when installing the new o rings. take your time

Also make sure you tighten the head bolts in the correct sequence and use a torque wrench and search for the torque specs on the head bolts. don't guess.
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