get the engine running first, clean and grease everything, then change all fluids that are bad, and try to keep the machine dry. I had to replace starter solenoid, 1 track spring, a track tension cylinder, and convert from generator to 24 volt alternator. If you run into any issues, let me know and I will try to help unless you have deep pockets and just want send it off to cat dealer.

@@scottmerlo380 No deep pockets here. Thanks for those suggestions. I talked to the 86 year old owner last night and learned that the dozer was last run just 3 months ago. The engine was recently gone through with $5,900 in new parts used in the overhaul. I apparently I got a good deal on this old D4D.

@Charles Foster order a parts manual off ebay or bother cat dealer and get new filters and oil if not changed recently. I will try and do a walk around of mine in a week or 2. Mine doesn't like cold weather so I put a port after air filter where I can preheat with a torch.

Pagou quanto aí essas máquinas antiga é tudo nova lisa aqui no Brasil só acha acabada

Se eu soubesse que tem como trazer comprava uma

Been using it since last year, no blowby or oil consumption. It is no showpiece, but it gets stuff done that would take my tractors, excavator, or skid loader forever.

Será que custa quanto uma máquina dessa ai . Será que tem como trazer pra o Brasil

​@@marciooliveira7614tem muita no Brasil

​@@marciooliveira7614tenho uma para vender

Pennsylvania

around 60