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Performance of WD45 gas and WD45 diesei

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=42499
Printed Date: 14 Aug 2025 at 9:28am
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Topic: Performance of WD45 gas and WD45 diesei
Posted By: Farrell(Utah)
Subject: Performance of WD45 gas and WD45 diesei
Date Posted: 21 Dec 2011 at 9:56pm
I was talking with a guy this evening who used to run both WD45 gas and WD45 diesel tractors.  I asked which was the better tractor and his answer was the diesel could do more work.  In my experience I have thought that the gas 45s would bury the diesel 45s.  What is your experience?  Oh I know the Nebraska test ratings of the tractors.  

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A(1937), 2 G, 2 WD45 diesels, 6 WD45 gas, UC, 2 WD, D17 gas, WF, Farmall 400, D12, Kubota B3030



Replies:
Posted By: HaroldOmaha
Date Posted: 21 Dec 2011 at 10:39pm
  I have one of each, the 1953 gas has 43 horse, and the 1956 diesel has 46 horse. They have both been outstanding pulling in there class. 4,000 lb and 4,500 lb for the gas and 5,000, 5,500, and 6,000 for the diesel, winning an occasionally 6,500.
   This summer I loaded the gas tractor with all the weights that I used on the diesel to see what it would do. I'am 200 lbs lighter than the diesel in the 5,500 class, but the best I've been able to do is 3rd place. and the gas has occasionally stalled instead of spinning out.       
                                                              Harold


Posted By: m16ty
Date Posted: 21 Dec 2011 at 10:57pm
For relatively little money a gas tractor can be made to run circles around a diesel. In stock form the diesel may have a little edge.


Posted By: Charlie175
Date Posted: 22 Dec 2011 at 5:43am
Originally posted by m16ty m16ty wrote:

For relatively little money a gas tractor can be made to run circles around a diesel.

In what way?


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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD


Posted By: oldchalmersiron
Date Posted: 22 Dec 2011 at 6:03am

You could oversize the pistons and cylenders on the gas if they are not already. Probrably get a couple more horsepower.



Posted By: Charlie175
Date Posted: 22 Dec 2011 at 8:03am
175 Piston kit (8.25:1) and 175 Governor weights would do the most for the money?

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Charlie

'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD


Posted By: Lonn
Date Posted: 22 Dec 2011 at 8:52am
A diesel will gain a lot more power as the engine gets broke in. I know a guy who has a 45 diesel that dynos close to 55 hp and the engine is original.

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Wink
I am a Russian Bot


Posted By: DougS
Date Posted: 22 Dec 2011 at 10:15am
You can usually "turn a diesel up" much easier than you can modify a gas engine for the same additional horsepower.


Posted By: Lonn
Date Posted: 22 Dec 2011 at 10:26am
If it's turboed yes but not so much for NA like a 45 is.

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Wink
I am a Russian Bot


Posted By: KGood
Date Posted: 22 Dec 2011 at 10:52am
They had overbores for the 230 diesel back in the day too. My opinion diesel would be cheaper on fuel. You could turn it up some for the cost of an allen wrench but probably the gas would be less problems of the two since this was there first diesel and the bugs were not worked out on some. I just like the diesels anybody know how they compared on torque?


Posted By: SteveM C/IL
Date Posted: 22 Dec 2011 at 1:19pm
i don't remember the story and both are deceased now,but dad said "uncle" demoed both back in the day and went with the gas(still on the farm). Both pulling 4-14's SC. I'm sure dad said the gas out worked the diesel.....


Posted By: D17JIM
Date Posted: 22 Dec 2011 at 1:27pm
our 2 gassers outworked the neighbors 2 diesels anytime we were together. All were on 4-14's SC plows.  They used less fuel but at days end we had more done.  I remember a dealer demoing a Diesel  pulling in behind Dad and couldn't keep up.  Again both on the same plows. 


Posted By: SteveM C/IL
Date Posted: 22 Dec 2011 at 1:29pm
I think Jim just confirmed my foggy memory.


Posted By: acd21man
Date Posted: 22 Dec 2011 at 3:42pm
ya this was ACs first diesel but it was buda they already made the engine before AC got them so most bugs were halfway out, i own a 45 gas wd gas and 45 diesel and 2 D17 diesels, both gas are very strong 45 is probly 54 hp but the 45 diesel is tured up with 16s on the back and will leave the gas tractors its probly 70 hp

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2 wd 45,2 D-17 diesel/gas 3 pt, 220,d21, 4020,2 4430s used daily http://www.youtube.com/channel/UCudh8Xz9_rZHhUC3YNozupw


Posted By: WD45
Date Posted: 22 Dec 2011 at 6:37pm

Both of our WD45 tractors are equipped with the standard engine. When we worked these tractors in the 90's the diesel would out pull the gas pulling a 12 ft MF disc.



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Fred Dunlop, G,B,CA, WC,WF, 3 WD45`s,gas, diesel and LP,U,D10 series III, D12,D14,D15 SERIES II,D17 Series IV in Gas and Diesel ,D19 GAS and D21,170 185,210 ,220 an I-600 8070 fwd, 716H and 1920H


Posted By: acd21man
Date Posted: 22 Dec 2011 at 9:54pm
http://www.youtube.com/watch?v=w-8agSuU7-A&feature=channel_video_title - http://www.youtube.com/watch?v=w-8agSuU7-A&feature=channel_video_title  heres my 45 drivin the gas dont have the pull the diesel has
and here she is ready to go to town lol http://www.youtube.com/watch?v=C85KBVBmblY&feature=relmfu - http://www.youtube.com/watch?v=C85KBVBmblY&feature=relmfu


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2 wd 45,2 D-17 diesel/gas 3 pt, 220,d21, 4020,2 4430s used daily http://www.youtube.com/channel/UCudh8Xz9_rZHhUC3YNozupw


Posted By: Lonn
Date Posted: 23 Dec 2011 at 5:52am
Originally posted by acd21man acd21man wrote:

http://www.youtube.com/watch?v=w-8agSuU7-A&feature=channel_video_title - http://www.youtube.com/watch?v=w-8agSuU7-A&feature=channel_video_title  heres my 45 drivin the gas dont have the pull the diesel has
and here she is ready to go to town lol http://www.youtube.com/watch?v=C85KBVBmblY&feature=relmfu - http://www.youtube.com/watch?v=C85KBVBmblY&feature=relmfu

That's an original paint? Nice.


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Wink
I am a Russian Bot


Posted By: acd21man
Date Posted: 23 Dec 2011 at 1:50pm
no its not

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2 wd 45,2 D-17 diesel/gas 3 pt, 220,d21, 4020,2 4430s used daily http://www.youtube.com/channel/UCudh8Xz9_rZHhUC3YNozupw


Posted By: Lonn
Date Posted: 23 Dec 2011 at 1:52pm
Originally posted by acd21man acd21man wrote:

no its not

Still very nice.


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-- --- .... .- -- -- .- -.. / .-- .- ... / .- / -- ..- .-. -.. . .-. .. -. --. / -.-. .... .. .-.. -.. / .-. .- .--. .. ... -
Wink
I am a Russian Bot



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