Little diesel engine in my shop.

[Gonzo 1066]

This is a custom John Deere pulling tractor engine, I am installing it in a friends JD tractor this winter.

 

[Wayne M.]

Dig the dry sump setup! Has it put any numbers down?

 

[Bill Stockard]

At my first glance, I thought it was a JD 404, but upon a closer look, and IIIRC, they used a Stanadyne (Rosamaster) injection pump and not a Bosch inline pump. Is that a later/different engine or did you change the fuel system? Why the dry sump? Is it for when the tractor's front end raises up when pulling a sled it prevents engine oil cavitation?

Bill

 

[Gonzo 1066]

The block and head are late model Deere pieces. The fuel system has been modified with the Bosch P-pump, custom injectors, water injection etc. Wild roller cam,roller rockers custom oversize valves. The oil pump system (not a dry sump) is to make sure that there is plenty of oil flow no matter what the position of the tractor is. This is a dry engine, that is no cooling system, if we have to make back to back hooks we will cool the engine with a leaf blower through the water passages.

 

[Bill Stockard]

WOW!! Quickly back up to the sled and then full power to the end of the run... shut it off and let it cool down. Would that be about 10-20, maybe 30 seconds under full power? What model JD is that engine going into?

Bill

 

[JR]

What's the advantage of not running any coolant?

 

[Gonzo 1066]

WOW!! Quickly back up to the sled and then full power to the end of the run... shut it off and let it cool down. Would that be about 10-20, maybe 30 seconds under full power? What model JD is that engine going into?

Bill

A pass down a 330 foot track will be MAYBE 12-15 seconds, there will be LOTS of excess fuel, this helps keep the EGTs down to a reasonable range (below 1500) and LOTS of water in the intake (over 1000psi) also for lower temp, denser intake air and hence lower EGTs. The engine will be a dry block,and head to eliminate the headaches of the extra systems, water pump,radiator etc. And if the head lifts just slightly on a hard pull you dont have issues with water in a cylinder. If you notice there is LOTS of oil capacity in that pan, because of the much larger piston cooling jets the oil pump has more than double the capacity of the stock pump. The extra oil is also a good heat sink for the engine.