Dr. Allis D17 XT Plowing

4 x 14's in high 2nd gear. Wet old hay ground

https://www.youtube.com/watch?v=wmey5AyZh3I

[TUBE]wmey5AyZh3I[/TUBE]

Edited by djo220 - 24 Nov 2020 at 10:31am

Actual dyno test was 85 HP @ 2300 RPM's.   Slowing the engine down to 1650 (PTO speed for a D-17) it still has 67 HP and stays on top of the turbo down to 1400 RPM.

The engine is from an F-2 diesel combine, transplanted into a D-17 gas chassis. The only sheet metal alteration was opening up the air cleaner hole about 1/4" for the larger air cleaner inlet.

It will seldom get used plowing again, and only for show if it does. The old gas engine developed 210 ft lbs of torque at 1,000 RPM.  This turbo-diesel engine develops 240 ft lbs @ 1400 RPM, so 15% or so more torque, but at a higher RPM, which is good for gears, bearings and shafts. I figure if the tractor is never weighted down more than 6,300 lbs and the engine is operated under heavy load at 2,000 RPM or more, no harm will ever come to the driveline.

At the 15 second mark is where I threw it into the high side. I did all the other plowing in low 2nd. I was afraid if I hit a rock at nearly 6 mph the plow might suffer severe damage.

The crankshaft thrust bearing in this 4-cylinder version of the 301 is the same exact thrust bearing as a 180-185-190-190XT-200-7000. We never had any issues with them. This tractors foot clutch is a flywheel/clutch disc/pressure plate from one of those bigger tractors shoved into the smaller D-17 bell housing. The 6000 series had foot clutch pressure PLUS PTO clutch pressure, which at times, was just too much for the thrust bearing.

Where's the smoke? My F2 hazes all the time. Similar to an N6 but not that heavy.

Well, it was 30 degrees that morning, so the air was good for no smoke. The injectors have never been serviced on that 1978 model year engine. It must have had good care in all it's years of use. I'm guessing it has 3,000 hrs or less on the engine.  It will smoke when you crack the throttle when under the turbo for sure. All the good ones do that !!! The weights are what you do when you have a lot of that type laying around !!  The rear wheel weights actually go on and off much easier than any OEM donut or pie weight does. All you have to do is get the wheel positioned just right and they slide right into place.

Edited by DrAllis - 24 Nov 2020 at 7:35pm

My 78 has 3300+ hrs . The meter was AWAL when I got it .I took it apart and oiled things and it's been working for last 20yrs. Doesn't use any oil and will lay a cloud when throttled up after snapping in separator clutch. Great little engine! I assume yours has the low compression pistons too causing poor cold starts?

Those 433T engines are good ones. Our 81’ 6060 still runs great, plenty of power, no smoke until you roll the coal with a load, clears right up after its up to speed. Very fuel efficient. Nice set up DOC, cool project. Would have truly been a great setup for AC.

Looking good Doc, you done a great job even on the littlest details it looks even better up close.  

Looks great and works great Dr! Do you enjoy engineering/fabricating/designing?

This has bee fun to watch come together. This is what the D17 Series 5 should have been, instead of the Perkins, which are great engines no doubt. 

Well said about the AC 433I. Back in the late 1980s thru the 1990s, I’d usually get two full days (12-14hrs/day) running a hydro F3 Gleaner(70gal fuel tank) & A330 cornhead. It’s 433I was very economical, yet powerful.

I put a 433 in a 175 about four years ago took the perkins out tractor runs quieter with a strait pipe and more power , I have late model black engine starts great ,