These old International diesels are quite the units. I’ve overhauled a number of the fuel systems over the years and they definitely set the bar for complexity. The average Bosch pumping element contains about (7) parts so in the high pressure circuit of a 4-cylinder injection pump you’ve got about (28) pieces to contend with. A high pressure element for this consists of (28) parts or four times the number for a Bosch. I can only imagine a mechanic back when these were in their heyday, having to work on one in the field...
When I use to work on heavy equipment the boss he had a clearance diesel tractor. It was a 1947 and you started on gas and switched to diesel when warm.
Thanks for the info on the snow relief on the sprockets - did not know that - no snow in CA where I live! I volunteer with the San Joaquin Historical Museum where we have a similar vintage T30 - gasoline/kersene fueled - the original owner's family donated it non running and we made it run. It had only two main bearings that were ball type bearings. The two fuel gas /Diesel engines were common up in the 40-50s - lots of OEM applications on construction machinery. I remember an outfit in the 60s with a Gradall that had one on the excavator. Great videos - keep up the good work.
The TD-35 was comparible to the 1940s TD-9. IH built crawler tractors with Gasoline Start Diesel engine up to 1962 (TD-15 151 Series & TD-20 201 Series models)
I didn't realize that IH had diesel that far back. They hung with that gas start/diesel run design for a long time until they got to the 60 series tractors. Except for the Continental Engine in the 350s. I just never liked that they ran only three main journals in the four cylinder and four in the early 6 cylinder diesels but it seemed to work.
Great to see you too! Caterpillar, I would have to believe, is the KING of crawlers. Although, the Euclid at ROLLAG is pretty impressive! We will keep in touch!
Good morning, I am in France, near Bordeaux. I have a TD35 that I would like to start. But I'm missing the manual pump on the carburetor. Can you help me find one please? Many thanks
Unc had an old Galion grader with a 4-banger switchover Corn Popper engine that got swapped for a 4-71. It had a 2-range tranny on one stick. To swap ranges you threw the shifter all the way to the right past the last gear position and pulled toward you and then back left to the other range. That was all well and good BUT when I went from hi to lo the shifter fell out of the ball/socket and jammed the brake pedal. THAT got really interesting trying to get the shifter untangled from the brake stuff and get it yanked back up where it belonged, get the brakes to work and get the right gear all at the same time. It was one that had a bypass valve (looked like a spigot handle right in the middle o0f the valve body) as to how much oil went where as far as blade vs. steering. One day the side fell off the rear and it got canned. The 4-71 went on to power a 6-inch pump. If you didn't wear a camera out at that show you ought to had. Thanks, Toby!
On that transverse spring , Since the machine is sitting compressing it 24/7 ,do they need re-arching or new leaves after so many years of use and sitting ?
Those two round grille looking things above the draw bar, are those brake units, or cooling for the differential, or what? I've never seen that before, unless it's access for PTO.
