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Farmall & IHC Tractors Discussion Forum
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WD9 vs. SWD9

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markloff

05-25-2006 16:46:09




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Hello,

Other than a .125 inch bore increase whats the difference between a WD9 and a SWD9? How did they boost HP by 15? How do you make a WD9 a super? Any difference between a '48 or a '51 WD-9? I just got a couple of them last weekend and am a little unfamiliar with westerns.

Thanks in advance,

Mark




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Dennis Skellie

03-14-2007 12:36:41




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 Re: WD9 vs. SWD9 in reply to markloff, 05-25-2006 16:46:09  
My name is Dennis and I'm from Upstate New York.Needless to say there were not many rice or wheatland tractors sold in this state.Last year I managed to purchase one of both.The first,...1963 Minne Mo 602 Diesel Weatland Special.This Tractor is very rare but aparently spent a good part of the last 20 years on the bottom of a farmer's pond.I got it running and looking nice but thats another story,...The second is a 1956 McCormick Super WDR9.This tractor was in very rough shape as well.The owner had completely disassmbled it right down to the last nut and bolt.He was perparing to sell the parts on EBay.anyways,...I traded 5 old tractors for 7 fairly rare basketcases...And I mean Basketcases.It took 3 pickup trucks with three trailers to get te poor old McCormick home.now almost a year later I've started to restore the old girl.This is where the info comes in.See I have about 30 or so old tractors that I've been collecting in hopes of ressurecting.I'm fairly young at 37 and I wasen't around to work on these old work horses when they were in there prime.Thats where the research and trial and error come in.Here is some that I know about the WD9 vs SWD9.

-W9,WD9,WDR9,I9,ID9,T9,U9 all had a 335ci engine regardless if they were gas or diesel.
-The SWD9 and SWDR9 was the only to have A 350ci engine which only came as a start on gas diesel.
By taking info from the hundreds of books and manuals that I own,...I've been lead to believe that the super WDR9 was made in only 1956 and 1957.The number of Super WDR9 tractors is extremely low.Maybe less than 500 in the whole run of this tractor.This number also includes the Super WD9 tractor as well.The only difference between the Super WD9 and the Super WDR9 is the tire size and the rear fenders.The SWDR9 had high flotation tires with an extra wide footprint.It also had super sized rear fenders that almost completely covered the surface area of the rear tires to keep the mud from the rice feilds from kicking up onto the tractor.As far as a difference
between the SWD9 and the SWDR9 and all the other 9 models,...Horsepower 48.45 drawbar HP on the other 9's to 64.00 0n the Super's.Weight.5,850lbs on most others.7055lbs on the supers.
Now heres a bit of information that is a bit contardictory,...The engine on my tractor was left with water in it so it froze and broke very badly.This is why the previous owner was parting it out.I happened on a D350 Gas start diesel at an area auction.Just what I'm looking for,... and noboby else is!I got it complete for $100.00 and it runs excellent!After some more research,... it turns out that the motor is a SUD9 Power Unit that was used at an area Ski mountain for running the chair lift.They had had it there since 1958 and decided to upgrade to a more modern power unit in the last couple of years.Lucky me because I've been looking for some parts for this lady and parts are scarce.
Sorry for being so long-winded but if anyone has any other questions pertaining to Pre-1960 tractors please E-mail me,...I've got plenty of reserch sources.

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ihc49er

05-28-2006 10:38:49




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 Re: WD9 vs. SWD9 in reply to markloff, 05-25-2006 16:46:09  
I use the wd9 and swd9 regularly in the field and the straight 9 has no show against the super. And Yes it is 15hp over the wd9.youd be amaized at the difference. even a better sound.



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Harold H

05-26-2006 05:29:28




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 Re: WD9 vs. SWD9 in reply to markloff, 05-25-2006 16:46:09  
Super had more cubic inches, disc brakes, and some rear end improvements. Live hydraulics was optional on both Super and on late regular 9's. There was a Super WD-9 and WDR-9 but no Super W-9 gasoline. There was a WR-9-S which was a gasoline with the disc brakes and rear end improvements but still had the WR-9 gas engine.

Harold H



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markloff

05-26-2006 11:08:32




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 Re: WD9 vs. SWD9 in reply to Nat 2, 05-26-2006 05:19:22  
Nat 2,

I'm talking WD9's not W9's.

I'll check my books when I get home for the 15 HP

Mark



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CNKS

05-26-2006 05:37:19




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 Re: WD9 vs. SWD9 in reply to Nat 2, 05-26-2006 05:19:22  
IMO, the only author who has ever done extensive work in the IH archives is Guy Fay, there are MANY inaccuracies in the other books. Ken Updike also knows what he is talking about. There was no Super W9, there was a Super WD9. 10938 built, 1953-1956, including the WDR9, Guy does not say how many of either of those models.



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55 50

05-25-2006 17:08:44




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 Re: WD9 vs. SWD9 in reply to markloff, 05-25-2006 16:46:09  
I expect one difference would be that the Super would have live hydraulic power. I put many hours on a WD-9 and WDR-9 but never been close to a Super.



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