Evolution of the "226" engine

A WD45 was better filling a silo than a G John Deere. Story was told that the Deere kept stopping up the blower and my grandfather brought a D14 from his dealership and the pipe never stopped up. After that they bought a used 45 to run the blower.

I don’t believe there was a ‘snappier’ governor back then that would come close to a ‘45 on the blower or chopper. I was just a little kid then but all the farmers were saying such.

Thank you so much, Alex !! So, the AC owners manual AND the Nebraska Test information are indeed incorrect !!    A-C designated this last generation G-226 engine (8.25 to 1 compression/ special camshaft grind / Marvel TSX928 carb with 2 inch air inlet and 1 inch venturi) as the "75" - XXXX - V.   The D-17 engines were "17" ........  the One-Seventy engines were "7" ....... and the 175 engines were "75" ....... information complete !!!  Now, to track down the one and only surviving One-Eighty prototype tractor with the G-226 engine ( I know where it is)....wonder what it says ??  I know it has a mechanical fuel pump on it underneath the engine oil filter. My wild guess is   8 - 1001 - V  ?  

Edited by DrAllis - 24 Dec 2022 at 6:51am

Correct.  D-17 G-226 with M code is 7.25 to 1 compression and Z-code is 8.0 to 1 compression ratio. So, at the time that engine was built, I assume it was before July of 1967 when the One-Seventy was released. Really makes no difference, because the letter determines the compression ratio when that engine was built. The "V" code was in D-17 factory LPgas engines and all 175 gas engines. Yes, the lone non-vibrating One-Eighty G-226 tractor still exists., and as I said it does have a fuel pump on it to keep up to the 5.5 GPH fuel burn rate that 64 HP would require.

They know what it is. How it's cared for, I don't know.  I hope to maybe be able to view it again (I saw it in August of 1980 at the test farm south of Milwaukee) and gather some data. I'd like the complete engine serial number ( if it has one), a picture and tag number of the carburetor and a look in thru the bell housing inspection hole to verify the pressure plate mounting bolt size (3/8" or 1/2"). The pressure plate bolt size (to me) would indicate if it was just an 11 inch  D-17/170 flywheel/clutch assembly, OR a custom made 12 inch flywheel/clutch like the diesel engine had. Just curious is all, but in my mind I'm convinced it was/is just a 175 gas engine that ran 2,200 RPM to get 64 PTO HP.

Edited by DrAllis - 24 Dec 2022 at 3:16pm

The little B-C-CA engine started out life being the frame of the tractor would be my guess. The W/G series never had to do that because they were used in things that had side frames. Doing that would have added cost to the engine that wasn't needed. Just a guess. But the rear seal could have been 2-piece rubber lip with a wire thru the seal. FoMoCo had rear seals like that.

Mine is a 1975 175 Gas.  S/N 175 3685 Only 245 made that year.

Edited by davemel3nzc - 13 Jan 2023 at 8:24pm

A low hour unmolested 175 gas is my dream tractor! Sweet tractor for sure. Tracy

Since the Gleaner EIII was produced till the end of 1968, a year or so after D17 production ended, did they get the new One-Seventy engine coded 7-xxxx-Z or did those engines still get stamped with the 17-xxxx-Z format?

Edited by CrestonM - 15 Jan 2023 at 10:17pm

According to A-C, all One-Seventy and 170 engines start with 7 and end with "Z". It seems some Gleaner model "E" or "E-3"combines had this s/n configuration of  17 and Z with the Z meaning 8.0 to 1 compression ratio for more (4 ?) HP. There were zero D-17 tractors made with the Z-compression codes. The D-17 tractor was always M-code (7.25 to 1) or if factory LPgas V-code of 8.2 to 1.  Gleaner combine engines ALWAYS had the fuel pump hole underneath the engine oil filter base and grey paint on the block. So if there is a cover plate under the oil filter, it used to have a fuel pump on it and was a combine engine. Easy to determine.

There were 62,500+ D-17 tractors built from 1957 to 1967, so if they were 80% gas and LPG tractors, that makes for 50,000 G-226 engines being built. The model E and E-3 combines totaled approx 21,000 more engines as there were no diesel engines offered. Then, there were all the cotton harvesters, irrigation engines, generators and merry-go-round engines that were built over that 10 year span. And finally the One-Seventy, 170 and the final model 175 tractors that all used the G-226 model engine in one form or another. Pretty hard to determine the actual total built, but we have some evidence it was into the 80,000+ count by one of the above engine serial numbers given. Edit: Using Swinford's book, I see about 3500 ? total gas engines made for the One-Seventy,170 and 175 tractors, but that wouldn't include any other power units that were built in that time frame.

Edited by DrAllis - 24 Jan 2023 at 7:42am