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New Holland LS170 overheating again

J

jacksonduper

Member
I have a LS170 skidloader that overheats after about 10mins. I replaced the thermostat and the water pump is only a few years old. I cleaned the radiators fins back in October and it seemed to fix the problem for a little while now it is doing it again. It is getting frustrating! I'm going to clean the fins again but want a long term fix. The fan seems to be turning fine as far as I can tell. Any help would be great.

Joe
 
I would do the combustion gas leak test next.

This tests for a leaking head gasket or cracked head.

If it ever got hot, good chance the gasket is now leaking. Other symptoms are mystery coolant loss, misfire at start up, steaming exhaust, coolant in the oil, blowing coolant even before it gets hot. But early on there may be no symptoms. The test will pick up trace amounts of gas leakage.
Combustion Gas Detector
 
It would be nice to see what temp it's coming back to the engine at, Do you have a infer red temp gun, i know i don't have one, but would be useful!
 
Is it really overheating, that is- puking coolant out the overflow? If that is the case run the engine at high idle, and hold a rag in front of the radiator to determine strong air flow thru the radiator. If you have a vicious fan drive it should lock up as the temperature increases. You CAN hear them lock in and feel the increased air flow. Otherwise I would wonder if your temperature gauge is accurate. An infrared temperature is the best way to determine engine temps. Aim it at a few places, like the thermostat, and the top and bottom of the radiator. Mark.
 
You might need to pull the radiator and coolers out and steam clean them really good
cvphoto113967.jpg
 
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