Oil & Fuel Thermostat replacement

[mffarmall]

I looked through before posting. I'm looking to replace my thermostat. Does anyone have a number for napa, or autozone........

Jinma 284
Y395t engine

 

[Bob Rooks]

A picture would be a big help.
Does your thermostat look like this?

 

[coolreinfarm]

Is it the same for Y385, my 254 never did run higher than 140 degrees since it was new. Your diagram would explain that.

 

[Bob Rooks]

Is it the same for Y385, my 254 never did run higher than 140 degrees since it was new. Your diagram would explain that.

Many of the original thermostats are 140°, and this is not good. For one thing it doesn't get the oil warm enough to boil off any entrained moisture, greatly reduces thermal efficiency, and increases soot contamination in the oil. You should have a 85°C (185°F) thermostat installed.

 

[Bob Rooks]

I looked through before posting. I'm looking to replace my thermostat. Does anyone have a number for napa, or autozone........

Jinma 284
Y395t engine

This is the thermostat for a Y385 engine. Is that what you have?
Thermostats for Jinma & FarmPro Tractors | Cooling System Parts | Circle G Tractor Parts

 

[RonMar]

Many of the original thermostats are 140°, and this is not good. For one thing it doesn't get the oil warm enough to boil off any entrained moisture, greatly reduces thermal efficiency, and increases soot contamination in the oil. You should have a 85°C (185°F) thermostat installed.

Yep, Bob is right on. You need 185-190F for the reasons mentioned and also with low temp/low load you get fuel finding it's way into the oil. When the diesel is cold sprayed fuel condenses on the cooler cylinder walls and ultimately passes down past the rings into the crankcase. Fuel dosn't lube as well as oil so this increases wear...

Even with the proper thermostat, it may have trouble getting to op temp in cold weather. You need to tailor the available radiator surface area to the outside temp to allow the engine to run at full op temp as much as possible. Like big rigs in the winter time, with zip-up radiator jackets/covers.

 

[Bob Rooks]

Something for Farmall, who want's to be hand-fed:
http://www.tractorbynet.com/forums/...installing-thermostat-jinma-ty395-engine.html

 

[coolreinfarm]

I appreciate the info but the oil in this engine stays clean between oil changes, in fact I need a flashlight to find the level on the stick. After 13 years I'm more concerned about overheating, it still has the original battery starts every time. I guess I'm one of the few that got a good one from what I've read in this forum.

 

[Bob Rooks]

I appreciate the info but the oil in this engine stays clean between oil changes, in fact I need a flashlight to find the level on the stick. After 13 years I'm more concerned about overheating, it still has the original battery starts every time. I guess I'm one of the few that got a good one from what I've read in this forum.

Diesel engine oil should not remain clean between oil changes. That suggests that you're using the wrong oil. Diesel engine motor oil is formulated to keep carbon and soot particles in suspension.

 

[Gary Fowler]

Diesel engine oil should not remain clean between oil changes. That suggests that you're using the wrong oil. Diesel engine motor oil is formulated to keep carbon and soot particles in suspension.

My LS came with some kind of non-detergent break in oil. The reason I say this is because at the 50 hour change, it was clear like honey. I put in some Shell Rotella T6 and within 10 hours it looked like diesel oil should, coal dust colored.

Coolreinfarm: What kind of oil are you using? It should specify for diesel engine service on the container. Regular automobile oil is not high enough in detergents to keep your engine clean.