"Old" Ratings for Case engines?

[James Maxwell]

I know the Case 110 has been called a 32-110 thanks to a revision of the HP rating the company used for the engine. What were the prior ratings of the rest of the Case lineup?

[Colin]

From smallest to largest there was the 6hp(in portable only) then the 9, 12, 15, 20 and 25 hp engines. they were accurate for the very early engines, but their actual boiler hp was more later on. from around 1906 and up. the smaller engines you add about 2 more on. the 25 was actually a 29.5 for awihle then back to 28 (all 80 cases had a 28hp boiler too) the 110 actually had a 40hp boiler under it for a couple years, then they went to a 38.5hp boiler in 1910. the extra heating surface on these engines was usualy made up by adding more tubes, in a bigger barrel sometimes. :thumb: