scoutring

Check out this Facebook listing for a DT239 engine https://www.facebook.com/photo?fbid=6073979399295239&set=a.6073990119294167

The white marks is were the mounts finally ended up being located for the proper measurements from the rear adapter plate.

Mine has the short driveshaft. when I made the motor mounts for the 4BT, I had to measure the center of the crankshaft to the center of the motor mount of the old motor and convert that to the same measurement of the new motor, to keep the alignment of the crank the same, (front and rear of the motor) . I measured the center of the driveshaft to the bottom of the block, of the old motor, then did the same on the 4BT. The difference of those measurements, was then applied to the rear motor mount measurement, up - down with the same measurement to rear of the adapter plate face of the 4BT. I made a jig that I used to locate the proper location of the rear motor mounts on the 4BT. I used the same info to locate the front mount, after making new side brackets, and welding them to the front cross member, that I cut off the old motor mount. See pic for the Jigs that I make to get the proper alignment for the motor mounts, front and rear. The long bar is what I measured from to locate the mount location for the front's proper alignment of the crankshaft. The jig bolted to the rear side of the adapter plate. Measurements were taken from the rear plate side forward on the upper bar for the rear mount, and the lower bar for the front mount location.

The 6 is too big (long) to fit in the dozer. I only had to extend the fan 2 inches to get proper air flow for the radiator.

I'm located in Ohio

Boyde and Sons in Indiana is a good source for parts, too.

Reference to your earlier posting, about changing the motor (that was my posting), I converted the DT239 to a 4BT Cummins. I had to make all of the conversion plates, rebuild the motor and make new motor brackets to install it into my machine. The 4BT has a turbo charge on it, Yippie More power. Spent about $7,500 by the time I got it done. Depends on your point of view, Yes it was worth it. The old motor was direct mounted to the frame, so we had to mount the 4BT in there the same way, ( No rubber motor Mounts). There was no way to get a rubber mount in the 2" space between the motor block and the frame. So the machine Vibrates like ****, (because the 4BT motor does not have a balancer like the DT239 motor has). I had to extend the Fan coupler, so the fan would be closer to the fan shroud of the radiator, to properly draw air flow. Had to modify the throttle linkage, reroute the electrical wiring, fuel lines, extend the oil fill tube and dipstick to the top of the machine, and make a new door opening on the the top of the hood for the oil fill and dipstick. Along with other modifications to the machine. Reference to an earlier posting, My TD8 has plenty of power. It out pushes our other dozers. Reference to an earlier posting, Yes, it's slower that the newer dozers, but it can push like there's no tomorrow. We had to add a plate on top of the blade, (see picture) to help keep the dirt from coming over the top of the blade. But it still isn't high enough, the dirt still comes over the blade. The operator has to pay attention when pushing anything, because the dozer keeps pushing. The DT239 motor was rebuilt the last time with a new crank, all new bearings, Rings, Gaskets. After we installed in back in the dozer, after about 8 hours, we heard a rattling noise, After removing the engine, we discovered that the crank balancer was cracked and I couldn't find another one, It was running when I pulled it back out. So we decided to change the motor. Now the old motor is now stored in a box in the warehouse. I wish I find a new home for it. Needles to say the machine is powerful and Still wants to work. My 2 cents worth.

Back in the 50's we had a three holer out back, newspaper or magzines was used "after you read it " (didn't used the shiney pages)

Did you check for voltage at the glow plugs to see if there is voltage there ? Ok next, Did you check to see if there voltage is present, 0r how long ? No Voltage ! What powers the glow plugs ? A timer, Relay, or the machine computer ? Timer can be bad. replace it. The relay bad, replace it. Does the wiring check out ok, or is one of the wires going to the glow plugs broken. Maybe a bad ground ? Computer's timer needs to be checked for the heat up time for the glow plugs. OR when all else fails By pass the current system - and you could install a new timer and wiring to control the glow plugs, With a push button to activate the the new timer system. You will probably get an error code from the computer after modifying the system, but the motor will start and it should not affect how the equipment runs and operates. Good Luck !

Another great source it - Boyd and Sons Machinery - Washington, IN https://www.boydandsonsmachinery.com/ They are a good source for new and used parts. They have a parts line to locate older machine parts, US wide. I've used them for years to locate new, obsolete, and used parts, I can't find any where else. Sometimes less that manufacturer cost. Great service and support. They will get back to you about the parts your looking for. Reasonable Shipping, too.

Another great resource is - Boyde and Sons Machinery - Washington, IN https://www.boydandsonsmachinery.com/ They are a good source for new and used parts. They have a parts line to locate older machine parts, US wide. I've used them for years to locate new, obsolete, and used parts, I can't find any where else. Sometimes less that manufacturer cost. Great service and support. They will get back to you about the parts your looking for. Reasonable Shipping, too.