Radiator cap for 6045

[marty]

Hi guys ,does anyone know what the Kpa is for the radiator cap of a 6045, as there is nothing in the owners manual or the spares part book.

 

[treaney]

Don't know specifically but most pressurized radiator systems would be designed to operate at 50 to 100 KPa giving an increase in coolant temp of 12 degrees C to 24 degrees C at sea level (1.67 degrees C per 7KPa or 1 psi).

 

[marty]

Thanks Tom, the cap that is on it is not holding pressure, and has kpa on it but no number, a genuine cap is available but cost nearly as much for postage, and non genuine start at 7kpa and go up from there, just didnt want to over pressurise the system with the wrong one.
Cheers from the land down under.

 

[marty]

Hi Tom you were close to the mark ,asked my local diesel mechanic, he didnt have any specs on Zetor , but on his knowledge suggested a 7 or 8psi cap which is around the 50KPa + mark.
Cheers
Marty

 

[treaney]

If it is hot (or at high elevation) where you are, it more important to have a pressurized radiator to allow the engine to work properly.

Engine efficency is proportional to the difference in Tout to power of 4 minus Tin to power of 4 so increasing Tout in a high ambient temperature situation will help .