1140 utv diesel overheating

[Plowboy7517]

1140 diesel overheats every 2-3 months , coolant levels full in radiator and reservoir ,appears to be getting air lock in block, have taken to dealer 4 times they can find no leaks or problems ,purge air from coolant system and return, does it with or without thermostat installed, advise and ideals welcome

 

[AckServ]

1140 diesel overheats every 2-3 months , coolant levels full in radiator and reservoir ,appears to be getting air lock in block, have taken to dealer 4 times they can find no leaks or problems ,purge air from coolant system and return, does it with or without thermostat installed, advise and ideals welcome

I had the exact same problem. I drained all the coolant and when I refilled I used on of those coolant funnels. Let it run with the funnel full of coolant and saw the air bubbles for awhile.

 

[North Idaho Wolfman]

1140 diesel overheats every 2-3 months , coolant levels full in radiator and reservoir ,appears to be getting air lock in block, have taken to dealer 4 times they can find no leaks or problems ,purge air from coolant system and return, does it with or without thermostat installed, advise and ideals welcome

Is the radiator clean?
Are fans working?
Have you flushed and refilled cooling system?

 

[Plowboy7517]

Is the radiator clean?
Are fans working?
Have you flushed and refilled cooling system?

radiator clean, fans working, reservoir at full level, no leaks park on concrete, remove thermostat housing no coolant in top of block and water pump , fill with coolant purge system runs fine two-three months and repeats problem, no oil in coolant and no coolant in oil

 

[Plowboy7517]

radiator clean, fans working, reservoir at full level, no leaks park on concrete, remove thermostat housing no coolant in top of block and water pump , fill with coolant purge system runs fine two-three months and repeats problem, no oil in coolant and no coolant in oil

beginning to think internal letting coolant go out exhaust

 

[Plowboy7517]

beginning to think internal letting coolant go out exhaust

doesn't pull coolant back from reservoir either

 

[North Idaho Wolfman]

Have you done a pressure test?

 

[Plowboy7517]

no I haven't ,mentioned it the last time I left it at dealer, may be time to find a new dealer,

 

[jaxs]

no I haven't ,mentioned it the last time I left it at dealer, may be time to find a new dealer,

Amen to that. Replacing water pump is part of routine maintenance on these small engines.