Go Back   ATVConnection.com ATV Enthusiast Community » Brand Discussions Area » Polaris
Sign in using an external account
Register Forgot Password?
Search

Welcome to ATVConnection Forums!
Welcome to ATVConnection.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the ATVConnection Forums community today!


Reply
  #1  
Old 09-13-2009, 09:56 AM
TLC's Avatar
TLC TLC is offline
Extreme Pro Rider
God forbid he lets the polishing secret out!
Garage is empty, add now
 
Join Date: Jul 2006
Posts: 10,208
Default Can I run my 500 H.O without the thermostat?

I,m going fishing to tomorrow and the dealership is closed today, My thermostat needs to be changed so I removed it and put the hose back on. The ATV seems to run great, no over heating and the fan comes on as it should. I would could by one on my way out of town and slip it in at our staging point ,but I would have to re burp the air out of the cooling system again, or can I deal with it when I come back home?

The weather is 70 degrees here right now.
__________________
2001 Yellow 500 H.O
No ECM
No Plastic roll cage
5.25 gas tank.
============
2007 350 Grizzly
IRS
Diff lock.
Reply With Quote
  #2  
Old 09-13-2009, 10:06 AM
dirtjunkie's Avatar
Range Rover
Garage is empty, add now
 
Join Date: Sep 2009
Location: Texas
Posts: 135
Default

It will overheat after a while, but for short burst of riding should be fine. I would not ride it all day long like that.... IMO
Reply With Quote
  #3  
Old 09-13-2009, 10:28 AM
Doctorturbo's Avatar
Extreme Pro Rider
GOT BOOST!
Garage is empty, add now
 
Join Date: Jan 2004
Posts: 3,201
Default

You'll be fine.
And no, you won't overheat without a stat. About the only bad thing is the engine won't come up to operating temp so it might feel cold blooded.
Reply With Quote
  #4  
Old 09-13-2009, 10:34 AM
Weekend Warrior
Garage is empty, add now
 
Join Date: Jul 2008
Posts: 19
Default

The purpose of a thermostat is to regulate temp restricting flow on cold engine to bring up temp to give best power avd fuel economy. Once the engine is hot the stat goes wide open to give full flow to the rad for cooling. Running without stat in 70 degrees should make no differenc for overheat-if anything it should run cooler.Put the stat back in when cooler weather . Or at earliest convenience. Justbesure to use antifreeze mix not straight water.
Reply With Quote
  #5  
Old 09-13-2009, 11:15 AM
Angel of Death's Avatar
Trailblazer
Garage is empty, add now
 
Join Date: Sep 2009
Posts: 92
Default

Quote:
Originally Posted by Doctorturbo View Post
You'll be fine.
And no, you won't overheat without a stat. About the only bad thing is the engine won't come up to operating temp so it might feel cold blooded.

+1
Reply With Quote
  #6  
Old 09-13-2009, 12:37 PM
stendori's Avatar
Super Quad Patrol
I'm watching you!
Garage is empty, add now
 
Join Date: Jul 2003
Location: central maine
Posts: 13,791
Default

Quote:
Originally Posted by Doctorturbo View Post
You'll be fine.
And no, you won't overheat without a stat. About the only bad thing is the engine won't come up to operating temp so it might feel cold blooded.
100%
__________________
02'polaris sportsman 500 "freedom"
05' polaris scrambler 500
07' yamaha vstar 1300
10' massey ferguson tractor
Reply With Quote
  #7  
Old 09-13-2009, 01:36 PM
dirtjunkie's Avatar
Range Rover
Garage is empty, add now
 
Join Date: Sep 2009
Location: Texas
Posts: 135
Default

It can overheat from not allowing the coolant enough time in the radiator to cool off.
This may not be an issue in cooler climate states, but in texas it can & will overheat without a thermostat during the summer months.
Reply With Quote
  #8  
Old 09-13-2009, 02:17 PM
95wolv's Avatar
Pro Rider
Your friend needs to stop smoking whatever it is that is rotting his brain!
Garage is empty, add now
 
Join Date: Oct 1999
Location: Saginaw, MN
Posts: 3,101
Default

dirtjunkie is 100% correct, without a thermostat, you may be ok for a short ride, but without the thermostat,the coolant will flow too quickly to be cooled effectively,and return almost as hot as it went in,so you will overheat if you ride it for long, it is just as much a flow valve as a temperature control, otherwise, they would not have designed it to run with one. I would get the stat in as soon as possible.
Reply With Quote
  #9  
Old 09-13-2009, 04:11 PM
Doctorturbo's Avatar
Extreme Pro Rider
GOT BOOST!
Garage is empty, add now
 
Join Date: Jan 2004
Posts: 3,201
Default

Quote:
It can overheat from not allowing the coolant enough time in the radiator to cool off.
This may not be an issue in cooler climate states, but in texas it can & will overheat without a thermostat during the summer months.
I have taken the stat out of at least a half a dozen street cars in my life just to try this. All in VERY hot weather.
Never did it over heat. It did not even come up to OT.

Tried this in at least 3 or 4 race cars. Some Ford and some Chevy. Outcome? Same as the street cars.

In my book. MYTH BUSTED.

(I will concede that I have never tried this in Texas with a quad engine.)
Reply With Quote
  #10  
Old 09-13-2009, 06:34 PM
stendori's Avatar
Super Quad Patrol
I'm watching you!
Garage is empty, add now
 
Join Date: Jul 2003
Location: central maine
Posts: 13,791
Default

i have also taking the therm out of cars w/ no ill effect. if anything it would be a cold engine issue from not warming up. but again i dont live in texas either. imo
__________________
02'polaris sportsman 500 "freedom"
05' polaris scrambler 500
07' yamaha vstar 1300
10' massey ferguson tractor
Reply With Quote
Old 09-13-2009, 06:34 PM
Reply

Tags
09, 2001, 500, atv, cooler, ho, hot, make, polaris, replacing, run, runs, sportsman, thermostat, thermostate



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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