Farmwithjunk
Super Member
As already mentioned, most likely electraulisys. (sp) Wet sleeve diesels will eat holes in the cylinder sleeves. A combination of coolant system cavitation, acidic coolant (from age) , small dirt particles in coolant, and time will cause sleeves to end up with holes that look almost like someone took a cutting torch and burnt small holes into them. Coolant dumps into oil pan.....engines over-heat, bearings gald, you spend major coin.
Coolant systems on wet sleeve diesel engines require additional care. Coolant needs a treatment to maintain ph levels, and reduce cavitation. Many engine manufacturers have integral coolant filter systems on newer tractor, and also offer retro-fit filter kits for older models.
I once saw a John Deere 830 (3-cyl diesel, 35 hp, from early 1970's) with less than 400 hours with ALL the coolant in the oil pan from this malady. Not at all UNcommon.
Coolant systems on wet sleeve diesel engines require additional care. Coolant needs a treatment to maintain ph levels, and reduce cavitation. Many engine manufacturers have integral coolant filter systems on newer tractor, and also offer retro-fit filter kits for older models.
I once saw a John Deere 830 (3-cyl diesel, 35 hp, from early 1970's) with less than 400 hours with ALL the coolant in the oil pan from this malady. Not at all UNcommon.