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Allis Chalmers Discussion Forum

info on Allis Chalmers WD-45

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04-13-2004 10:23:21

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hi, I need some info on a WD-w5 gas engine tractor i am working on, how do you time it, what is the firing order and what are the points to be set at, does any one have a wiring diagram they could e-mail me, also do they yake a 6 volt or 12 volt battery, are they positve or negitive ground. thanks mel

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Ryan Ellis; Va.

04-14-2004 16:07:09

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 Re: info on Allis Chalmers WD-45 in reply to mel, 04-13-2004 10:23:21  

The point gap is to be set at .020". I may only be 14 years old but I have an original manual and enjoy working on old tractors.

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Tyler Herring

04-18-2004 19:48:58

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 Re: Re: info on Allis Chalmers WD-45 in reply to Ryan Ellis; Va., 04-14-2004 16:07:09  
Glad to know I'm not the only kid around (I'm 16). Any idea of how I can wire an 8 volt battery so that the lights still work?

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04-13-2004 19:59:34

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 Re: info on Allis Chalmers WD-45 in reply to mel, 04-13-2004 10:23:21  
forgot to include my e-mail adress,it is fordson22@pennswoods.net

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04-13-2004 19:05:55

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 Re: info on Allis Chalmers WD-45 in reply to mel, 04-13-2004 10:23:21  
Brian said the mark on the flywheel is at the bottom. basically you take out the spark plugs. have your buddy rotate the motor by hand with your thumb over the front plug hole (#1). when you feel compression, the piston is coming up to the top. stop early, and look at the bottom mark on the flywheel. rotate the motor slowly the last 1/4 turn untill the TOP or CENTER mark is visible in the timing hole. leave it there. ------ now the distributor or mag should be pointed at #1 plug wire (remove the rotor cap). and the point should be ready to open, or the mag ready to snap. adjust the rotor to that point. --- now you are ready to start. after it is running the advance will change the timing slightly. you can then chekc with the timing light to get to the FIRE mark if you wish. you will be close.------ your tractor was 6 volt positive ground. really dont matter. you can make it negative ground, or change to 12 volt if you want, not hard. --- send me a e-mail and i can give you a diagram. if you want alternator or 12 volt generator wiring update, just ask. spotter@frontiernet.net

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Brian G. NY

04-13-2004 16:39:34

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 Re: info on Allis Chalmers WD-45 in reply to mel, 04-13-2004 10:23:21  
I would send you the wiring diagrams if you gave us your e-mail address. The firing order is 1243, the point gap is .020" (.018" to .022") the original electrical system is 6 volt Neg. ground. These engines can be timed with a timing light using the F (Fire) mark on the flywheel which is 30 deg BTDC. The mark is visible thru the inspection port at the bottom of the flywheel housing. The TDC mark is usually on the flywheel as well; don't get the 2 confused. The engine should be running at a fast idle (above 1,100 RPM) when timing with a timing light. The method for timing without a timing light is rather lengthy. You will find that the purchase of a service manual and an operator's manual will be a good investment if you want to keep your tractor in top shape.

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Vic Lovejoy

04-14-2004 05:46:57

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 Re: Re: info on Allis Chalmers WD-45 in reply to Brian G. NY, 04-13-2004 16:39:34  
Brian, I've been struggling with the mystery wires broken off in my wiring diagram.

If possible I would very much appreciate a diagram of the wiring on the WD45. My email address is vlovejoy@nospamhsonline.net (remove the nospam - thanks).


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04-14-2004 14:40:01

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 Re: Re: Re: info on Allis Chalmers WD-45 in reply to Vic Lovejoy, 04-14-2004 05:46:57  

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Brian G. Ny

04-14-2004 19:48:15

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 Re: Re: Re: Re: info on Allis Chalmers WD-45 in reply to CHALMERSBOB, 04-14-2004 14:40:01  
Gee Bob, you didn't have to holler at me! LOL You are absolutely right just as my old flathead Fords were + ground. I released my fingers before putting my brain in gear.

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04-15-2004 18:00:30

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 Re: Re: Re: Re: Re: info on Allis Chalmers WD-45 in reply to Brian G. Ny, 04-14-2004 19:48:15  

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04-24-2004 13:27:14

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 Re: Re: Re: Re: Re: Re: info on Allis Chalmers WD- in reply to CHALMERSBOB, 04-15-2004 18:00:30  
I want to buy a Allis W-D-45 with wide frount end

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