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Allis Chalmers Discussion Forum
:

have a allis chalmers wd need help

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rcamaro86

09-28-2016 14:51:19




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I have a allis chalmers wd and spun a rod bearing crank is to far gone to turn . can I put a crank from a wd45 in this wd block and will I have to change rods also and use wd45 pistons was told they are the same block different stroke didn't know if the rods are the same size as the wd or not . going to rebuild the motor and thought mite as well go a little bigger for the same money if I can go with this way or not if its not going to be a lot of extra work . thanks for your help

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Aaron SEIA

09-30-2016 14:30:20




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
Far as I know they all got shimmed. Take the block, crank, and rods to a shop and you can have them milled to get away from them. Really aren't too bad to work with and I see the big tractor parts store that starts with an S and ends in einer is selling new shim sets.

AaronSEIA



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rcamaro86

09-30-2016 11:24:48




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
I read that after #1001 they did use shimes is that right or do shime the rods and crank on all of them with stock rods



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allis dave

09-30-2016 10:51:08




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
Like Aaron said, you'll need a 45 crank, pistons, and sleeves. I would suggest having the rods cut and turned to remove the rod shims. You'll have to use a plastigauge to get the mains shimmed correctly. The tall head makes no power difference. If you add a 45 air cleaner and carburator you'll add some power. OR you could just rebuild it as a WD and use the same crank. A machine shop could tell you if it's still usable after turning the crank.

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4wdtom

09-30-2016 08:40:57




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
If you are going to rebuild the WD engine make sure you know if you need to set the bearing clearances and how to do it maintaining the "crush" required. The manual tells how, as does the I&T manual. The machine shop can line bore it and the rods too and set it up for more modern bearing where you don't need to do this if you want to pay them to do it.



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rcamaro86

09-29-2016 14:47:30




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
I am in ohio that's a little to far to come and get the motor thanks any way looks like I am going to just rebuild what I have



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old

09-29-2016 14:25:11




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
Do not know where you are at but I have a WD45 engine in my shop tha tI pulled out due to it getting to be a bit on the weak side I would sell for pretty much what ever core would be for it. I'm in Missouri



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Aaron SEIA

09-29-2016 13:57:53




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
If you put WD pistons on a WD 45 crank you will have astronomical compression numbers. Build it right with correct pistons made for a 4.5" stroke, and you have a WD45 engine in essence. I'd guess you had compression ratios that'd make a diesel proud. I've got a WC with 175 pistons in it that I'd love to drop a 45 crank in, but I don't want to bust my arms trying to start it.

AaronSEIA



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cleddy

09-29-2016 13:27:43




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
third party image

third party image

When I was young we had a WD break a crankshaft when hard plowing. Surprising it still ran with a broken crank shaft. We were accidently sold a WD-45 crank which was a big job to install in the middle of the busy summer and after it was all carefully done the tractor ran AWFUL when we did finally got it started by pull-starting. That extra 1/2" of stroke had an awful high compression engine which was almost impossible to start and about as hard to get stopped. I think we have M&W pistons which may have increased the problem but I don't see how you guys are getting by with building WD engines into WD-45 engines. Ours made it about 50 feet before shutting it down and pulling it back in the barn for a proper repair with a WD crank.

A few years ago I ran the same tractor with low oil and spun a rod bearing in the middle of the coldest day in the winter just before a holiday. No one to help and nothing to do except keep driving about 5 more miles to get where I needed to be. Even with a knock we used the tractor several times before tearing it apart to find one journal on the crank was bad and bearing beat almost out. I found a machine shop to grind the one bad journal
smaller and bought one under size bearing and a used rod to repair the engine which seems to be holding up fine. I put a Gleaner E combine engine in a WD-45 and that was a easy fit. The only thing changed was the Governor housing and used original tractor starter. It makes it kind of a "Mutt" but the high pressure engine and spin on oil filter makes a nice low hour tractor engine.Cleddy

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rcamaro86

09-29-2016 12:33:54




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
thanks for the info I have the 12 volt alt. already where is the best place to get info in how to shime the rod bearings . so your saying to get the rebuilt kit for a d17 and get the bearings for the 45 crankshaft . it has the spin on oil filter on it is that what I need .



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BushogPapa

10-02-2016 14:53:28




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-29-2016 12:33:54  
You MUST use the correct oil filter..the one filled FULL of Batting and has a round dowel in the center ( if you have a WD or WD-45)..

Otherwise, you will have no oil pressure...



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BushogPapa

09-29-2016 10:19:50




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
It won't cost any more to overhaul your engine as a WD-45 (Bore & Stroke), except for the Crankshaft and Pistons...

No need to go over-board and change Head or carb, but the Gas (Cold) Intake Manifold would be good, if you plan to work it especially hard..

On the subject of Piston Kits..get the Piston/Liner set made for a D-17 with 7.2:1 Compression..costs NO More and makes better power.

You will then want to go to 12 Volt electric. It is handier than the 6V. and you can then use it to "Jump" other vehicles..plus, it SPINS the engine very well on 12V..

Make SURE you are well versed in the use of Shims to adjust the Rod Bearings..

Remember, you MUST use an oil filter with the "Batting" stuffing inside it or you will have no oil pressure..

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BushogPapa

09-29-2016 10:21:06




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 Re: have a allis chalmers wd need help in reply to BushogPapa, 09-29-2016 10:19:50  

I would much rather Build a fresh engine instead of buying an unknown item..



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rcamaro86

09-29-2016 06:52:44




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
would it be a big job to put a gleaner E combine motor in my wd guy has one for sale I found and said it ran when pulled for $600



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JMS/.MN

09-29-2016 08:48:11




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-29-2016 06:52:44  
Combine engine is a 226 cu in, bolts right in...but needs a couple of mods. google "Gleaner E engine into WD45".



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rcamaro86

09-29-2016 05:41:45




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
lima ohio



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anallisguy

09-29-2016 04:59:46




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
where are you located? I've got some cranks laying around.



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rcamaro86

09-28-2016 18:01:53




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
I seen that I checked on bearings and was told the crank will need turned is that true



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Ted in NE-OH

09-28-2016 17:49:04




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
There is a WD crankshaft on ebay now and it is $159.85 search "WD Crankshaft"



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rcamaro86

09-28-2016 17:33:41




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
sounds like I need to just fine wd45 motor and rebuild it or just keep what I got and rebuild it for it was getting the job done for me thanks



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BushogPapa

10-02-2016 14:58:51




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 17:33:41  
The NEW Piston/Sleeve Kit is an easy installation and the WD-45 Crank essentially makes it a WD-45 engine..costs no more to build it this way and you will LIKE it... Just replace the Clutch Plate and Pressure Plate for a 9 Spring Pressure plate..



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rcamaro86

09-28-2016 16:40:14




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
could I just the parts off my wd and just do the crank and pistons or add all the other parts to make it run right



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Jerry Coulter

09-28-2016 17:25:33




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 16:40:14  
Along with the crank and dish top pistons, you need the carburetor, air cleaner and manifold to get all the power of a 45. If your WD is a 1951 or newer, you already have the center firing head.



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Aaron SEIA

09-28-2016 16:36:51




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 Re: have a allis chalmers wd need help in reply to rcamaro86, 09-28-2016 14:51:19  
Crank is a drop in. Rods are the same just need WD 45 pistons. Good time to put the tall 45 head on as well. Pushrods stay the same. Just need the 45 rockers and head bolts. Then a 45 carb and intake and you are good to go.

AaronSEIA



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