Are there two different motors in a 45, if so how do you tell the difference? THANKS

My question was about gas motors, the guy at the parts house said there was two gas motors for a WD45. He could have been confused.

as John said there were changes to the basic engine used in the WC- WD- WD45 then the D17 as time progressed. YOu give him the serial number and there should be no problem. Is possible to find a WC with a D17 engine, and maybe vice versa, but i would doubt it. Go by serial numbers.

226 gas and i believe a 230 diesel. i know it had a diesel option not quite sure on the cubic inch.

The diesel engine was the Buda 6B230. The same engine that was used in the Cockshutt 40.

yep,one gas and one deisel,gas 4 cyl.,deisel 6 cyl.

Now let me add fuel to the fire - weren't there "GA" and "PA" serial number suffixes on WD-45 motors? Or not? I know there were two different suffixes on WD motors (201 CI), one was supposed to be a 5.5:1 compression ratio and the other was a 5.75:1 compression ratio, both were gasoline models (not a tractor fuel version - the compression on it was around 4.75:1, right?). OK< fire away ....!

Bryan, Correct you are oh observant one. My owners manual says 2 different compression configurations. 6.5:1 (gasoline) and 4.75:1 (Low Octane fuel). There is also a picture of the 2 different manifolds. But as far as the mechanicals the engines are the same with the noted exception of the pistons and the manifolds.

The WD engine suffixes were "KA" low compression and "PA" high compression while The WD-45 suffixes were "K" low compression and "G" high compression. The K & KA quite obviously stand for Kerosene (tractor fuel) and the G fits Gasoline quite nicely. What the PA stands for, I never quite understood.

Maybe propane?

Here's something Ed sent me some time back - see if it follows along (for a WD) with what you guys know:

"Original gas motor for WD had GA suffix and was 5.5:1 compression (yes that low - that was before they had decent octane); In mid-1951 as I recall - at motor s/n 283022, they changed to the PA suffix which was 5.7:1. The K or KA suffix as I recall was in the high 4's say 4.7:1 maybe to burn distillate (kerosene) fuel."

Ed's done a lot of work on this kind of stuff and knows his numbers - he tries to keep a running track of engine serial numbers vs tractor serial numbers (some curves of his work on my website - link below). I doubt that a 226 ci gasoline WD45 engine had two different compression ratios, but it looks like the 201 ci gasoline WD engine did. Hmmm .....

• http://www.clemson.edu/~wsmth