Overheating/overflowing/runing rough-Need help to fig out. - Page 2 - Polaris ATV Forum
ATV Repair and Maintenance Having problems? Doing a rebuild? All Repair/Maintenance Discussions here.

Reply
 
LinkBack Thread Tools Display Modes
post #11 of 13 (permalink) Old 03-13-2012, 07:07 PM Thread Starter
ATV Enthusiast
 
VTgamezombie's Avatar
 
Join Date: Feb 2012
Location: Orange, Vermont
Posts: 96
Quote:
Originally Posted by Muskyhunter View Post
Quote:
Originally Posted by VTgamezombie View Post
Im sorry. Its a 1999 Sportsman 500. (Pre HO model.)
I originally felt the running rough could of been a coolant leak inside motor, ie a blow head gasket or the like. But with no signs on the plug or wet/coolant coming out of the exhaust Im not thinking thats it. Even if it were, I wouldnt be getting over heating and coolant reservoir over flowing after 5 minutes.
I still need to check the oil for coolant.
I have seen headgaskets go one some old euro cars go, the only indication was excess pressure in the cooling system. Some of the compression was leaking but the gasket hadn't yet deteriorated to the point where the cylinder would take in some coolant. If you let it sit and idle, do you see any air bubbles coming out of the coolant? It doesn't take much sometimes.
I dont see any bubbles at all. Though I havent ruled out a gasket issue either. Thanks for the input.

1999 Polaris Sportsman 500

Aftermarket Accessaries:
Vision 161 Bruiser Alloy Wheels
2" SuperATV Alloy Wheel Spacers
Kenda Executioner Tires 25x10x12
2" SuperATV Lift Kit
Tusk Heavy Duty Springs (4)
3000 lbs Superwinch with Remote Control (front)
1500 lbs Superwinch on Reese Hitch mounting plate (rear as needed)
Moose Plow
Kimpex ATV Front Box w/ Gull-Wing Doors
Kolpin Polaris Convertible Rear Drop Rack (icefishing only)
Koplin Gun Boot and mount (Hunting only)

Homemade Accessaries:
3 Headlight Mod
Removed sway bar
Reese Hitch style bumpers (front and rear)
Automobile style bumper hitch rack 18"x36"
Reese Hitch style Winch mounting plate
Reese Hitch style mounting for 50 Cal Ammo can storage
VTgamezombie is offline  
Sponsored Links
Advertisement
 
post #12 of 13 (permalink) Old 03-20-2012, 05:45 AM Thread Starter
ATV Enthusiast
 
VTgamezombie's Avatar
 
Join Date: Feb 2012
Location: Orange, Vermont
Posts: 96
Well I still am exploring this issue.
One more piece to the puzzle was that I decided to check my oil for coolant. I did not start the bike. I just pulled the dip stick cap off oil reservior to see what was on the dip stick. It looked clean, or as clean as used oil can look.
I then took the drain plug off for a sec a got about 2oz of oil in a small cup.
I didnt see anything until I dumped the oil out of cup and saw what looked like very very small droplets of water. I also saw what looked like extremely small alum dust particals if the sun light hit it just right...

I admit its been a long LONG while since the oil has been changed. Maybe 4 years, but 3 of those the atv was in storage sitting...
I didnt feel I had a big coolant leak in the oil but not sure what those droplets could of been.
Condesation maybe? Coolant?
Yes its well past time it gets changed. LOL
Im gonna wait until my atv mech friend can look at it though.

1999 Polaris Sportsman 500

Aftermarket Accessaries:
Vision 161 Bruiser Alloy Wheels
2" SuperATV Alloy Wheel Spacers
Kenda Executioner Tires 25x10x12
2" SuperATV Lift Kit
Tusk Heavy Duty Springs (4)
3000 lbs Superwinch with Remote Control (front)
1500 lbs Superwinch on Reese Hitch mounting plate (rear as needed)
Moose Plow
Kimpex ATV Front Box w/ Gull-Wing Doors
Kolpin Polaris Convertible Rear Drop Rack (icefishing only)
Koplin Gun Boot and mount (Hunting only)

Homemade Accessaries:
3 Headlight Mod
Removed sway bar
Reese Hitch style bumpers (front and rear)
Automobile style bumper hitch rack 18"x36"
Reese Hitch style Winch mounting plate
Reese Hitch style mounting for 50 Cal Ammo can storage
VTgamezombie is offline  
post #13 of 13 (permalink) Old 05-01-2012, 02:04 AM
Junior Member
 
jbev59's Avatar
 
Join Date: May 2010
Location: columbus Ohio
Posts: 12
The radiator cap has a pressure rating lets say 10lbs . This pressure in the cooling system raises the boiling point of the coolant . The spring on the cap gets week and changes the pressure of the cooling system and it will over heat and spit coolant into over flow
jbev59 is offline  
Reply

  Lower Navigation
Go Back   Polaris ATV Forum > Polaris ATV Technical Discussions > ATV Repair and Maintenance

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Polaris ATV Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Runs rough.... MPR850 Polaris Magnum 4 02-23-2012 01:10 PM
Running Rough Joewater ATV General Discussion 2 03-28-2011 03:55 AM
EFI running rough Canuck Sportsman ATV Repair and Maintenance 8 03-13-2011 01:32 PM
Rough running TB 330 Blaze330 ATV Repair and Maintenance 0 03-03-2010 05:03 AM
Running rough bebeamer ATV Repair and Maintenance 5 05-04-2009 10:10 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome