you might be lucky.
there is a drain cock on the main fuel tank drain off some fuel and check for water and debris. if no water or debris its fine, diesel doesnt go off.
the pony fuel tank will need a rinse out with fresh fuel.

The reason I listed the 2nd serial tag possibility is that the second "one" in 1919 looks to run top to bottom in the serial box creating two boxes. It is very lightly marked where the 9W is heavy stamped, and the 4G19 is more lightly stamped. I can't see a top in that "1" either. I had wondered if early on Caterpillar listed the serial, and also counted the frame width models separately.
What will be really interesting is removing the bad tire from the trailer. I really don't like this trailer. It has 8 tires and 4 axles where none of the axles run across the trailer. So I'm going to need to crib up the trailer with the dozer on it, and crawl under the trailer to remove the lug nuts. In addition that flat tire is still under there, and the cable inside the bead is now a pile of wire wrapped around the stubby axle. I don't want to remove the dozer where it's at, or I'd never get it back on the trailer. It's on my property, but no where near where I want to work on it. The trailer is on an incline so I could drop it there and tow it up the hill next summer I guess. Yet to be determined!

Since oil is fairly cheap when compaired to parts, I will change it before any attempt is made to start the dozer. I know I'm thinking way ahead, but I feel I should probably use a non-detergent oil. Is that what you guys would do? I don't have any manuals yet, but what weight of oil should be used? and is there special coolant required?

When the blade was jacked up to pull it out of the building, after loading the dozer on the trailer the blade stayed up until the blade control was used to lower it. That surprised us.

88, I did look in the fuel tank when I first looked at the dozer. There was just a little bit of diesel in the bottom and it looked clean. I felt the inside of the top of the tank, and it felt smooth, no rust I could feel around the opening. The outside bottom especially, does show rust. The dozer was a little higher in the rear so what diesel there was, was in the front. It looked like it was drained but some leftover was still in the front. Yesterday I found the dipstick and I didn't detect any diesel. The gas tank looked pretty clean, not shiny, but no debris, and it was dry.

Congratulations a new carrier of Yellow Fever, you own a Cat. If the engines turn over, since it rolls and steers you will be a winner.


Hopefully the fuel is the old last forever type, rather than low sulfur/clean burning type that lets the injector pump rust.

High detergent oil was invented because of oil burning in early Cat diesel engines. In the old days 30wt was the standard. Today many run 15/40wt, some still hold out for strait 30wt. For flushing or the first test run I cannot see non detergent being a problem, but never for really running it.

Grandpa bought one of the first Cat 35 diesels back in 1934, with the local dealer having the privilege to bring customers around to test drive it. Burning oil was a real problem with the rings sticking. So dealer changed rings, then piston, rings and sleaves, and finally when they used the new experimental high detergent oil, oil burning stopped.

My father told me 40 years ago that adding detergent oil to an engine that only had non in it, would start cleaning out the sludge built up over the years and contaminate the oil with junk that would have stayed put where it was and not be a problem. I don't know one way or another if that is true, but I have seen sludge built up in the bottom of the oil pan, and if that started breaking up, I don't think it would be good. I do know I don't want to run it with the oil in it now.
The nice guy I bought the dozer from did turn over the pony motor, and the diesel motor with the starter attached to the pony's pulley with the handle on the starter that tighten the belt. That was good to know that the engine was free wheeling, but I would have liked to have put some lubricant in the cylinders 1st.

HI R2D2, good to see you have the machine home now, I would move machine to place of possible on trailer so you can start on the small jobs you want to do, if your trailer is good enough for height you could do oils and filters on trailer and not need to crawl under machine on the ground?

Im not sure if you are a member of ACMOC yet? but when you do you get to access the library with all the manuals you can feast your eyes on.(yes there is plenty)

I hadn't used the trailer in about 2.5 years, and don't expect to need it again soon. So yeah, I was planning to leave it on the trailer, and keep it tarped while I work on it. The flat tire now complicates all that. Where I want to work on it is not where it's at either. Even without the tire problem my 4x4 dually wouldn't be able to pull it up the hill to my cabin this time of year. I'm sure I will need to join to get all that needed info.
I'm trying to figure out posting pictures, I hope I can.

 

Here it is just after loading. I wanted to see how the pictures come through.

Here is one of where it was that the owner had with most of the wood that was around it removed. Being that the owner operator died 15 years ago, and his widow is now in her 90's,  Tells me the dozer was there a very long time. The fact that it was buried in firewood, tells me the prior owner didn't use it at all in many years prior to his death. There's no way to know the details now...only guessing.