The story some of the ACMOC crew helped me with a while back is now published in Diesel World magazine. It's in the paper magazine's September 2022 issue (on stands now) as well as being online at the place linked below. Again, this is my go-to place when I need to figure out what makes old Cats tick... many thanks to all the helped. Kent Bates lent a hand, and added his usual combo of gravitas and knowledge.

It was an "All Cat" issue for me.. I have two columns in DW and both were on Cat products. The other one is on the D200A/RD-1820 radial tank diesel, which I link to also. Enjoy and thanks again.

Three's Enough
Cat in a Tank

Thanks for posting. I start mine up every couple of months just to listen to its unique sound.cheers WF

Time flies so it may have ben 35 plus years ago that I visited Ed Porter at his farm near Selinas Ca. Ed had several old cats in the barn but what I remember most was the Diesel 40 that he had purchased when it was 1 year old.The same operator had operated and maintained the tractor including overhals for  40,000 plus hours. All parts, fuel, oil, and filter cost were documented in a diary that the operator kept with the Diesel 40 that was still operatable.

Hi, Jim Allen.
Thanks for the heads-up. Int'restin' readin' in both 'ar-tickles'. I had heard that Cat had built a tank engine during WW2 but did not know much about it other than it had been done.

Just my 0.02.

Hi Jim, Great read thank you