02 800 rmk overheating - Snowmobile Forum: Your #1 Snowmobile Forum
http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Specific Snowmobile Forums > Polaris Snowmobiles


» Sponsors





Reply
 
LinkBack Thread Tools Display Modes
Old 03-04-2012, 12:46 PM   #1 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
02 800 rmk overheating

I've got a 02 800 vertical edge rmk. I just bought it a couple of days ago. I wanted to drive it yesterday but the temp gauge just kept coming on. Is this common for these sleds or is there something wrong with it?
Verticaledgermk is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-04-2012, 02:11 PM   #2 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,380
It's not common as long as everything is operating properly.

Things to check... is the snow flap curled and blocking snow from hitting the rear heat exchanger? (that happened on my 02 800.) A new snow flap will cure that.

Is there enough snow on the trail to hit the exchangers? If you are riding on hard pack, you may need to get ice scratchers to keep some ice chips and snow hitting the exchangers. No snow means the engine overheats.

Do you have a bubble in the coolant system? To make sure you don't, get the front of the sled up higher than the rear heat exchanger. Idle the engine for a while with the coolant bottle cap off; any air bubbles can make it out of the system. Refill as necessary.

Is the water pump belt broken? This is pretty critical, as the belt drives the water pump and the oil pump. You will need to remove the recoil starter assembly to get to the belt. IF it's not been replaced, it should be. When I had Edge 800's, I replaced every couple of years, just to be safe.

Is the water pump actually pumping? I had an issue with a 700 where the nut that holds the impeller on fell off and was not allowing the impeller to turn. The impeller is plastic and the shaft turned inside it. At idle, the system was able to flow enough water to keep the light from coming on, and I even felt heat at the rear heat exchanger. But at any speed, it would quickly overheat.

If all the mechanical parts are ok and you are just playing in marginal snow conditions with no fresh snow to hit the exchangers, you can pile snow on the running boards. The coolant goes through the outside edges of the running boards to help keep snow melted. Piling snow at the rear of the boards and across the back (on top of the rear heat exchanger) can give more cooling in marginal conditions.

Good luck, and welcome to the forum!
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 03-05-2012, 04:25 PM   #3 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
There is only about 1 foot of snow on the ground and it was -5degrees Celsius outside so I'm hoping/ thinking it's just that.
Verticaledgermk is offline   Reply With Quote
Old 03-06-2012, 05:41 PM   #4 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
How do you get to the water pump to see if the belt is shot and to replace it? Does anyone know where I can get free service manuals for my sled so that I can see how to change the belt?
Verticaledgermk is offline   Reply With Quote
Old 03-06-2012, 06:01 PM   #5 (permalink)
Klein
 
AKlein57's Avatar
 
Join Date: Feb 2011
Location: Hortonville, Wisconsin
Posts: 32
the attached images are from a service manual for a 05 polaris edge touring but i have used it to fix my 02 edge 600
Attached Thumbnails
02 800 rmk overheating-7-800-water-pump-assembly-removal.jpg   02 800 rmk overheating-7-800-water-pump.jpg  
__________________
Klein
AKlein57 is offline   Reply With Quote
Old 03-07-2012, 06:42 AM   #6 (permalink)
-LIFETIME MEMBER-
 
Trip's Avatar
 
Join Date: Oct 2011
Location: Yorkton, SK
Posts: 266
Verticaledgermk:

Just visit RecRepairInfo - Downloadable PDF Repair Manuals

Pay the $10 download the full repair manual, they will send you a disk as well.

or

Pay the $50 for a Clymer repair manual.
__________________
2002 RMK 800 144, 2004 600 XC
Canadian Avalanche Centre
Trip is offline   Reply With Quote
Old 03-07-2012, 06:41 PM   #7 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
So I got to the water pump and the belt is good. I looked at the impeller and it looks and feels good. How can I make sure that it actually is good?
Verticaledgermk is offline   Reply With Quote
Old 03-08-2012, 08:47 AM   #8 (permalink)
-LIFETIME MEMBER-
 
Trip's Avatar
 
Join Date: Oct 2011
Location: Yorkton, SK
Posts: 266
If its not spinning on the shaft its usually good. Did the sled just start overheating? no other repairs (that you know of)

I have a feeling it is the snow conditions.
__________________
2002 RMK 800 144, 2004 600 XC
Canadian Avalanche Centre
Trip is offline   Reply With Quote
Old 03-08-2012, 09:23 AM   #9 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
Well I just bought the sled last week. The other owner said he had done a lot to it but I don't think in the motor. Before I bought it I took it for a test ride and it didnt overheat. I was thinking it might be the snow conditions but the running boards and my heat exchanger don't even get hot so I don't think the water pump is pumping.
Verticaledgermk is offline   Reply With Quote
Old 03-08-2012, 07:56 PM   #10 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
So I changed the thermostat and now it's working perfectly. the coolant flowing through the pipes and the heat exchanger is heating up nicely. Hopefully it's all good now.
Verticaledgermk is offline   Reply With Quote
Old 03-08-2012, 11:16 PM   #11 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,380
Good deal!

Make sure to "burp" the system, with the sled on a steep incline where the radiator bottle is above the rear heat exchanger, idle the sled for a bit with the cap off the bottle. Any air will migrate out of the system to make sure you don't have an air bubble to muck things up when you are riding.
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 03-09-2012, 09:18 AM   #12 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
The old mechanic at the dealer here told me to tip the sled over on the left side a couple of times and that should do the same thing.
Verticaledgermk is offline   Reply With Quote
Old 03-09-2012, 12:14 PM   #13 (permalink)
-LIFETIME MEMBER-
 
Trip's Avatar
 
Join Date: Oct 2011
Location: Yorkton, SK
Posts: 266
Glad to hear your up and running
__________________
2002 RMK 800 144, 2004 600 XC
Canadian Avalanche Centre
Trip is offline   Reply With Quote
Old 01-06-2013, 11:20 AM   #14 (permalink)
Registered User
 
Join Date: Jan 2010
Posts: 35
Refreshing this post as I have a 2002 RMK 800 that seemed to overheat last week while riding on a flat powder road. My brother had replaced the recoil rope with some lawnmower rope or something and that had completely melted through and broke again. So that may have had something to do with it according to an earlier post on this thread.
The Antifreeze boiled out so it was hot and we were riding flat powder at the time.
Sled fired up with a clutch start idled great but only ran half power then died about a mile from the shop. Had to tow it the rest of the way.
Hoping it's this water pump issue or thermostat thing, Don't exactly trust this shop it's at so any thoughts on the process of repairing this before hand to compare would be greatly appreciated

Last edited by BC_Dan; 01-06-2013 at 02:19 PM. Reason: language
Vinski is offline   Reply With Quote
Old 01-06-2013, 02:56 PM   #15 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
Quote:
Originally Posted by Vinski View Post
Refreshing this post as I have a 2002 RMK 800 that seemed to overheat last week while riding on a flat powder road. My brother had replaced the recoil rope with some lawnmower rope or something and that had completely melted through and broke again. So that may have had something to do with it according to an earlier post on this thread.
The Antifreeze boiled out so it was hot and we were riding flat powder at the time.
Sled fired up with a clutch start idled great but only ran half power then died about a mile from the shop. Had to tow it the rest of the way.
Hoping it's this water pump issue or thermostat thing, Don't exactly trust this shop it's at so any thoughts on the process of repairing this before hand to compare would be greatly appreciated
Well with mine it later turned out to be the head gasket. Pretty much just check the thermostat and water pump and head gasket and you should find something to be wrong. As for the process it's pretty straight forward. You take the cover off the water pump and take it out piece by piece. The thermostat just has 2 bolts that hold it on. Just take the cover off and the stat is right there. And I didn't do the head gasket myself so I can't tell you how much work that is. Good luck.
Verticaledgermk is offline   Reply With Quote
Old 01-06-2013, 03:56 PM   #16 (permalink)
Registered User
 
Join Date: Jan 2010
Posts: 35
Hey Thanks!! Just wanted to know a few possibilities of what it could be before I go ahead with the repairs at the shop.
If the engine actually overheated is there likely to be permenant damage?
Vinski is offline   Reply With Quote
Old 01-06-2013, 04:08 PM   #17 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,380
Yes. If there's not enough cooling, the pistons heat and expand and start scraping the cylinder walls. Sometimes you will need to replace or repair both cylinders and buy two new pistons after a severe over-heat.
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Old 01-06-2013, 04:14 PM   #18 (permalink)
Registered User
 
Join Date: Mar 2012
Location: LaCrete, AB, Canada
Posts: 14
Quote:
Originally Posted by BC_Dan View Post
Yes. If there's not enough cooling, the pistons heat and expand and start scraping the cylinder walls. Sometimes you will need to replace or repair both cylinders and buy two new pistons after a severe over-heat.
But that would also depend on how much it was overheated wouldn't it? If he shut it off right away there probably shouldn't be a lot of damage
Verticaledgermk is offline   Reply With Quote
Old 01-06-2013, 04:23 PM   #19 (permalink)
Registered User
 
Join Date: Jan 2010
Posts: 35
My Brother was riding it at the time and shut it off pretty quick. However he rode it another mile after we clutch started it before it died and I towed him out. Sounded like it was on 1 cylinder and had about 1/4 power...idled fine though..

Would a shop be able to figure that sort of thing out without doing a lot of work?? Basically the sled isn;t worth much and don;t want to spend a bunch of money on this thing if we don't have to...if its a few hundred bucks no problem but a thousand or more and we'll be recycling it
Vinski is offline   Reply With Quote
Old 01-06-2013, 04:24 PM   #20 (permalink)
Super Moderator
 
BC_Dan's Avatar
 
Join Date: Jan 2004
Location: oregon
Posts: 12,380
Sometimes people get lucky

If the head cover changes color because of heat, you can expect problems. Pulling the carbs and the exhaust to look at the piston skirts can sometimes give you an idea if the pistons are scored. Good luck!
__________________
2007 Dragon RMK 700 155", 2008 RMK 600 155", 95 Prowler 550 2-up, Really OLD AC Cheetah

http://www.avalanche.org/accidents.php
BC_Dan is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:50 PM.



Copyright SnowmobileForum.com

Search Engine Friendly URLs by vBSEO 3.6.0