Did she blow up?

smtt126 · Jan 25, 2014

Well I was riding my 700 Xc sp tonight when my temp light started to blink I shut my sled off and checked my antifreeze level. Low... I don't know where it went but I didn't see any leaks. Filled it back up and went to start it up, wouldn't start, finally got it started and it just wants to die. I was able to idle it back to my house and as I got closer it required more and more throttle to make it move at a slow pace. I got about 100 yards from the garage and it died... Won't start not locked up but will not start. Any ideas?

im2fast4u · Jan 26, 2014

Head gasket

In my opinion its probably a head o ring or gasket...pull plugs and do a compression test...good luck

smtt126 · Jan 26, 2014

Ok here's an update, went out in the daylight and added some coolant. Came pouring out of the tunnel. Looks like I lost a pick and poked a hole in my cooler. Can't confirm yet I gotta pull the track to be sure. But can a cooler be patched? Or does it need to be replaced? I still have to do a compression test but i hope it's nothing to major.

Jay · Jan 26, 2014

No reason you can't tig weld a hole in a cooler. Far more difficult to get at then to repair.

smtt126 · Jan 26, 2014

Huge gash in the cooler. Had my buddy try to aluminum weld it with no luck still leaks. Can the cooler be replaced? It's the one on the very far front of the tunnel. Also how about jb weld?

Jay · Jan 26, 2014

Ebay auction #130505136202 is that the cooler you need?

smtt126 · Jan 26, 2014

That's the one thanks!

smtt126 · Jan 27, 2014

Well not good. I jb welded the cooler temporary until the new one I bought gets here. I checked compression 115 psi seems low to me, however It fired up and eats antifreeze i think I blew the head gasket...

im2fast4u · Jan 28, 2014

Head gasket

I wouldnt ride it until you replace head o rings....it should be very obvious when you remove the head...if not then it will for sure be the base gasket...the paper stockers suck good luck!

smtt126 · Jan 28, 2014

Is that a dealer part? Or online? I have a polaris dealer less than four miles away.

smtt126 · Jan 28, 2014

Also what should compression be? I'm thinking 150-170?

Jay · Jan 28, 2014

Compression numbers vary alot from guage to guage, also depends on what elevation your at. I'm at about 1800' at home and on my guage most 700's are about 115 to 120 lbs. My guage is low compared to any others I have used. The O rings polaris uses for gaskets are available at any dealer and aren't alot, $12 to $14 apiece up here. Maybe pickup a winderosa top end kit, it'll give you everything you need for a reasonable price and I've always had good luck with them. Hate to say it but you've probably scuffed a piston, pull your exhaust valves and have a look. Hope it's not to bad.

smtt126 · Jan 28, 2014

Alright just pulled the head there was some moisture in it and minor scoring on the walls. Can anyone tell me how to add pics from my iphone? Also the biggest issue the thermostat has a piece of metal looks like a single roll pin stuck in it. I have pics just don't know how to upload them for not help. Thanks guys

Jay · Jan 28, 2014

How big a roll pin? It's not a piston ring retaining pin I hope. :face-icon-small-sho

smtt126 · Jan 28, 2014

Pin is equivalent to a roller bearing you would pull out of a trucks u-joint cap very small half inch long 1/8 maybe 1/16 diameter if I could upload pics I'd show you but I don't know how.

Jay · Jan 28, 2014

Did the thermostate fall apart? Did a waterpump bearing fail? Maybe the waterpump failed and that caused the overheating?

smtt126 · Jan 28, 2014

Thermostat did not fall apart it is still completely intact just has a pin stuck in the upper half of it. Not sure about the water pump or even how to check it.