Here is a link to a Youtube video with a LOTTT of information about caring for and maintaining early Caterpillar Diesel tractors, some of which may be helpful in assessing the value and restorability of old Cat machines.
Just my 0.02.
You have a wonderful day. Best wishes. Deas Plant.
"I signed up again, 3 year. Membership has more then paid for itself in troubleshooting and advice." - Daniel O
"I became a member recently because the wealth of knowledge here is priceless." - Chris R
"I also joined a year ago. had been on here a couple of times as a non-member and found the info very helpful so I got a one year subscription (not very expensive at all) to try it out. I really like all the resources on here so I just got a three year. I think its a very small price for what you can get out of this site." - Jason N