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H20 temp

off road rider

SnoWest Paid Sponsor
Premium Member
what is an acceptable water temp?? I would think 160 to 190F would be good, But some have said that 120 is where it should be at. Im thinking thats to cold for good engine managment.. Any thoughts??
 
If you are in powder it will run around 120. On hard pack it will build temp, the longer you run in marginal snow the more temp it will build till you are in the damage area. Running between 120 and 160 is normal. 160 to 175 I am looking for loose snow to cool it down. 175 to 185 needs to be cooled down now, if you cant find some loose snow to cool it then shut it off. 190 you are in the red zone. 200+ you are into damage.

One more thing, when ever you shut it off even for 15 minutes, when you fire it off again spin the motor before moving (applying load) for 90 to 150 seconds to allow your coolant to mix and stabilize.

Pulling the cord and pinching the throttle is a recipe for a seizure. Pistons go to max expansion and the cylinders go to max contraction when that cold antifreeze that's in the coolers hits the cylinders. Seen it lots of times. What happened?
 
temp

Polaris thermostats open at 120 which tells me that 160 to 190 is probably too hot. 190 for sure. I think they go into the safe mode at 160.
 
With my 1155 twin I was running 130 to 150 on icy trails and 115 in spring snow and about 105 to 110 in powder.

So far with my 800 twin in the same chassis I was seeing 120 on the snow packed and groomed trails.
 
Thanks for all the input. I have been thinking my Gage was broken as I have been reading what I thought was very low 115 to 130 or so..
I was trying to relate it to what we run on bikes "180" but I guess they don't need the buffer that the sleds do.. Glycol boils at the same temp whether its in a bike a car or a sled..so I assumed I needed to be at a higher range.. my mistake.. all is well..
 
On the M7 big bore I had, I noticed that it ran noticeably better if it was from 100 to about 130. At 150 I was told that it wasn't really dangerous to run it at that hi of temp but that consistant running at that temp will shorten the life of the motor, and it DIDN'T have as much power at that hi of temp.
 
My last trip this year I had two other guys riding 2010 Polaris's and outside air temps were high 40's..very warm day! Theres were stock sleds running 135-140 on trail, my sled stayed right at 155-165. In heavy mashed potato snow mine would drop to 140's theres stayed fairly close at 125's.
 
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