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WD VS WD45: |
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 2050 |
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Posted: 06 Jul 2023 at 8:27pm |
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What is the difference in these two tractor series? I was at a place today delivering a used compact tractor and a gent was heading to the field to haul hay with probably the nicest WD45 pulling a wagon I've ever seen. It is a fresh rebuild and the paint is almost deep enough to walk into. Much nicer than original. The guy I was talking to purchased the tractor new and it was his son operating it. Said he also had two WD tractors in the barn but I didn't see those. The really clean one had callouts that stated WD45. Later in the day I was following another tractor pulling a New Holland square baler and when he turned to enter a field I noticed it was a 185 diesel. I had the windows down and it sounded nice. Tractor looked in nice shape and original. Obviously kept inside when not in use from appearance.
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A career built on repairing and improving engineering design deficiencies, shortcomings, and failures over 50 years now.
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steve(ill)
Orange Level Access Joined: 11 Sep 2009 Location: illinois Points: 81066 |
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biggest difference is probably the WD had a 201 CID motor at 30 HP and the 45 had a 226 CID motor at 40 HP .... other small differences ....... over the years some WD rebuilt to 226 spec.... WD45 has a 1/2 inch longer STROKE on the crank.
Edited by steve(ill) - 06 Jul 2023 at 9:01pm |
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Like them all, but love the "B"s.
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TramwayGuy
Orange Level Access Joined: 19 Jan 2010 Location: Northern NY Points: 11445 |
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All WD45’s had Battery Ignition, helical gear transmission, bypass thermostat, and Snap Coupler. Most WD’s lacked these except for very last year of production.
I think wider rear rims and tires were also on WD45. |
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Codger
Orange Level Joined: 23 Dec 2020 Location: Illinois Points: 2050 |
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I have seen very few tractors with helical cut gears in the transmission. Even very new ones in for warranty repair. The WD45 series had these that long ago? Helical gearing is much quieter in operation than spur gearing and this gets me wondering if they were also constant mesh and full, or partially syncronized? Thanks,
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A career built on repairing and improving engineering design deficiencies, shortcomings, and failures over 50 years now.
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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The WD-series (late WD and all WD-45's) got the constant mesh/helical gear transmission at chassis s/n 127007 and up. The early WD's basically had a spur gear/sliding gear transmission nearly identical to the WC tractor. The newer transmission was to tolerate more torque and power and was quieter running. This same transmission transitioned into the early D-17's. The only real negative to the new constant mesh/helical gear tranny was it did not like being constantly ground into gear !!! which is an operator issue.
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SteveM C/IL
Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8235 |
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Most important differences to mw would be 2 plate VS 3 plate hand clutch and engine stroke.
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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Actually, the 2-disc hand clutch was used in early WD-45's up to approx s/n 165,000.
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55allis
Orange Level Joined: 30 Jun 2020 Location: Griswold Iowa Points: 697 |
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If you really want in detail, the gas distributor had a different oil fill cap, the fenders are taller on a 45, and a 45 (I don’t think) has a hole in the radiator shell for a fins in there…
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1955 AC WD45 diesel with D262 repower, 1949 AC WD45
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Gary Burnett
Orange Level Access Joined: 11 Sep 2009 Location: Virginia Points: 2939 |
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The WD will burn less gas doing the same job.
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Brian G. NY
Orange Level Joined: 12 Sep 2009 Location: 12194 Points: 2241 |
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But......it will take longer to accomplish. In some cases "time is money".
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Gary Burnett
Orange Level Access Joined: 11 Sep 2009 Location: Virginia Points: 2939 |
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Only if you are using the maximum HP of the WD45 which for most jobs isn't doing.Like raking hay,mowing etc,I have both and for 95% of the things I do with them no difference.
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WF owner
Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 4664 |
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If you are doing anything that takes power, the difference is very noticeable.
In today's world a 35 or 45 horsepower tractor typically doesn't do many jobs that require much power, but back in the day, running a sileage chopper, plowing, discing and other higher power jobs, the WD45 was head and shoulders above the WD.
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John Phillis
Bronze Level Joined: 05 Jul 2023 Location: Burgettstown PA Points: 39 |
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So my D17, which is under #1000 on the serial number has the same transmission as the WD45? I noticed that several decal sets for sale include a shift pattern decal that has reverse in between 78 and 46, however my D17 has reverse all the way to the right and down, outside of 1,2,3,4 in an H pattern. It is a smooth transmission with no real noise to speak of. At what point did they change the transmission in the D17? We never had a wd45 on the farm, only WC, WD, and D17 in that size family. I guess I should look for a WD45 for sale, feels like I am missing something now Oooh maybe a WD45 diesel! Going to have to watch for the Mecum auctions. It seems like every time I see a Mecum gone farming auction that features a bunch of Allis Chalmers, they all sell for less than what it cost to restore and maintain them. I have a feeling that if I ever went to one of those auctions, I would be coming back with a full trailer and an empty wallet. |
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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D-17 chassis serial numbers started at 1001, so yours can't be less than that. Yes, the D-17 transmission is basically the same as a WD-45 (in a different housing and different input shaft) and even closer to the WD-45 diesel model which has a slower ratio ring and pinion, altho I wouldn't consider the ring and pinion the transmission. The shift pattern is the same between them 1-2-3-4 and R off to the right and back.
Edited by DrAllis - 09 Jul 2023 at 6:15pm |
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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You get a 1 inch long pipe spacer on top of that coil spring and this will all be worth the fight....I promise.
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garden_guy
Orange Level Joined: 05 Jul 2013 Location: Illinois Points: 1135 |
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Yeah I have two transition year ('53) WDs and they both have different oil fill caps (one has a tab on top, the other does not). Both were said to have come from the dealer with the distributor ignition system on them though. One has an M&W piston kit upgrade with the stock hitch setup, the other was upgraded to a Snap Coupler.
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John Phillis
Bronze Level Joined: 05 Jul 2023 Location: Burgettstown PA Points: 39 |
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Serial number 1928, or under 1000th one built. I have the 192nd One-Ninety built also. I can’t remember off hand but the engine has a serial number also and it is in the same range, but not identical.
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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Straight One-Ninety ?? I had a customer that had One-Ninety s/n 1048 many years ago. Had the old original transmission and never had any troubles with it or the rear end.
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John Phillis
Bronze Level Joined: 05 Jul 2023 Location: Burgettstown PA Points: 39 |
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Yes, it’s a straight One-Ninety diesel. It’s got about 2200 original hours on it. It hasn’t been used much. I think the majority of the hours on it are from brush cutting, 3 point hitch log splitter, and raking hay. Probably 6 hours a week in the winter with the log splitter, and maybe 40 hours a summer with the brush hog. I did use it for about 300 hours pulling a 13 foot allis disc from about 2007-2011, but that is when something in the rear end or transmission locked up and ever since that it jumps out of gear going down hill. The brakes were always a problem from sitting so much. Most of its problems are due to lack of use and it spent close to 20 years sitting outside or in a shed with very little protection. it also sat on a dealer lot from the time it was new, until March of 1968. I think it was bought for $8800. Priceless to me with lots of sentimental value. Great tractor, just haven’t had the time to get it apart and fix it. At this point, I would like to fully restore it. Always gets put on the back burner, especially now that the D17 is in many pieces on the shop floor.
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Lonn
Orange Level Joined: 16 Sep 2009 Location: Назарово,Russia Points: 29781 |
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I believe that the real early WD45 came with a magneto not a distributor. Also I think the very early WD45 had the Snap Coupler as an option and not as standard equipment. Of course I could be wrong but that is what I remember reading once.
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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Don't think so. Dad had a late WD with the curved gearshift and tall cylinder head and it had battery ignition from the factory, so I don't see any WD-45 having a mag. One other thing I remembered was the WD didn't have a bypass hose on the thermostat hsg and the 45 did.
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Dennis J OPKs
Silver Level Joined: 12 Sep 2009 Location: Overland Park, Points: 433 |
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I think a lot of the older, straight gearshift WD"s were converted to distributors-I know Dad's was.
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 20479 |
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But, they used the mag governor housing. Dad's was the same governor housing as the 45.
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Lonn
Orange Level Joined: 16 Sep 2009 Location: Назарово,Russia Points: 29781 |
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Just getting a memory jog but I think the mag may have been an option on the early WD45. I'd have to find one of my books (Norm Swinfords maybe) to be sure.
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Wink I am a Russian Bot |
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Lonn
Orange Level Joined: 16 Sep 2009 Location: Назарово,Russia Points: 29781 |
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OK Doc, you are right. The mag was dropped in '53 at serial number WD136318. I thought the mag was an option for a bit but haven't seen anything to verify that thought. Haven't opened that book for a couple years.
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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink I am a Russian Bot |
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exSW
Orange Level Joined: 21 Jul 2017 Location: Pennsylvania Points: 914 |
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My '52 has the tall head and distributer ignition but NO curved shifter. 114,xxx serial number.
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Learning AC...slowly
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garden_guy
Orange Level Joined: 05 Jul 2013 Location: Illinois Points: 1135 |
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I have a WD136XXX serial number and grandpa got it brand new and said it came with distributor/no-magneto straight from the dealer (his older '48 WD and his WCs all had magnetos). So this would seem to match up?
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