Radiator cleaning - Polaris ATV Forum
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post #1 of 6 (permalink) Old 05-12-2012, 02:11 PM Thread Starter
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Radiator cleaning

Thought I'd share this...

Last season I rode all season with no issues overheating...toward the end of the season we did a big ride that involved more mud then usual. I ended up overheating during that ride and it was terrible because we were hours from home...I'd ride 10 minutes stop for 15 to cool down then start again. After that ride I hosed out my radiator from the front and rear the best I could, and never over heated again that season.

Now next weekend we are getting ready to go on a big ride...cover the same areas that we did last season when I overheated. So I figured I would be ready this year by tearing my radiator out, really cleaning it and I'm going to try straight water with water wetter this year instead of the 50/50 coolant.

Yesterday I started to tear the radiator out. Got the fan out and couldn't believe my eyes. Even with srpaying the radiator out with a hose multiple times, going to the car wash once and using the pressure washer to clean the radiator...it was still CAKED with mud! Check out the pictures!

Needless to say, I took the radiator completely out, soaked it in a bucket and hosed it down repeatedly.

Just goes to show that running a hose in there really doesn't do the job when you get into some heavy mud!
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Mine - 2007 Sportsman 800 - 27" Mudlites on SS rims, HID's, 3 headlight mod w/ relay, 2500lb winch, 4 gal rotopax, PowerMadd hand guards

Wife's - 2010 Polaris Sportsman 500 HO - HID's, 3 headlight mod w/relay and 2500lb winch, WES rear seat & kimpex foot pegs, 4 gal rotopax
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post #2 of 6 (permalink) Old 05-12-2012, 02:55 PM
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Location: Chaumont NY
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Yup, those would be the parts that the fan shroud covers and keeps you from getting at with the hose. Luckily having the center real clean helps prevent over-heating. But you are right. pullin git is the only way to ensure it is clean. Enjoy your ride without the overheating this year.

MINE:2015 Sportsman SP 800 Sunset Red
completely stock FOR NOW

HERS:2007 Sportsman 700 EFI Black Metallic
Tamarack Cargo Seat, Fender Guards with footpegs from Thor, UNI air filter, Symtec heated grips
Warn 2500 with synthetic rope, ThermoTec exhaust wrap, Reverse Override, 3 Headlight Mod
26" Maxxis Bighorn 2.0



RIP Sarge (2004 Sportsman 700 EFI killed on trail 32, Rock House, Hatfield-McCoy)
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post #3 of 6 (permalink) Old 05-13-2012, 06:17 AM
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straight water is bad. The coolant is not only formulated to lower the freezing point, but it also raises the boiling point. It also protects the passages from scaling as most people just use tap water instead of distilled. In my experience, I see more overheating in machines where guys cheap out and use only water, because it boils at 212 or less depending on the mineral content and elevation, and pressure inside the closed loop system.

Went for my routine checkup today and everything seemed to be going fine until he stuck his index finger up my butt! Do you think I should change dentists?
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post #4 of 6 (permalink) Old 05-13-2012, 08:33 AM
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Agreed, straight water, even with "water wetter" is a bad idea. Put your 50/50 mix in there.
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post #5 of 6 (permalink) Old 05-13-2012, 08:41 AM
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And using "DISTILLED" water is very important when mixing with cloolant!!!!!!!!!!!!

2011 Sportsman 500 H.O. Green
14" STI Wheels-26" Mud Trax X/L's
2500# polaris winch
Ricochet a-arm guards
Rev. override kit
Hid 3 light kit
3 light mod. w/relay

Uni air filter on both

Wifes
2011 Sportsman 500 H.O. Red
Ricochet a-arm guards
Hid 3 light kit
3 light mod. w/relay
Winch,wheels & tires still to go!
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post #6 of 6 (permalink) Old 05-13-2012, 11:05 AM Thread Starter
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Interesting. I had planned to run distilled water and water wetter. I've seen on other forums, like the Hi Lifter forums where people were running distilled water and water wetter and it was making machines run cooler. Some were only 4 or 5 degrees cooler..others 10 to 15 degrees.

Mine - 2007 Sportsman 800 - 27" Mudlites on SS rims, HID's, 3 headlight mod w/ relay, 2500lb winch, 4 gal rotopax, PowerMadd hand guards

Wife's - 2010 Polaris Sportsman 500 HO - HID's, 3 headlight mod w/relay and 2500lb winch, WES rear seat & kimpex foot pegs, 4 gal rotopax
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