Question for Rod NH

I am also rather sentimental about my B as Dad got it new a couple of years before I was born. I think the "manual lift" that you mention for the plows is really a depth adjustment, especially since you indicate that the plow(s) were hydraulically lifted. It sounds like you have the standard AC pick-up plow(s). The plows you see on my B are not AC - you can get a better view here:

Mine are aftermarket plows made by WIARD Plow Company in NY specifically for the B. They were a major manufacturer of horse-drawn plows during the first half of the 20th century. I have yet to find anyone who has similar B plows. They attach to the tractor very differently that the standard AC ones do. No hydraulic lift - manual only.

Take a look at my new post above titled "B Anchor Plate". If you want to attach some weight to your B front axle, make up one of those plates. You can bolt about anything to it for weight. Then, if you run across some standard cast AC wishbone weights, they will match right up to it. As I indicate in the post, even if you can find the weights themselves, you would really be pushing your luck to find that anchor plate also. The J bolts could also be fabricated from 3/4" dia steel rod and threaded to suit.

Rod

And a very Merry Christmas to you also. Those front weights are stock Allis B weights, sometimes referred to as "wishbone weights" because they attach at the standard arched front axle. There are actually two of them that are installed back-to-back. I think they are about 80 pounds apiece for a total of about 160 pounds. They are a little difficult for one person in a sitting position to hoist them up into place until the attaching bolts are engaged. That's probably why there are two of them. I understand they are not that common and the few that I have seen sold are up to around $200 (not including shipping) a pair, if not more. I don't know where you can get any. As I remember, the last wishbone weights I saw sell was from someone in NY on ebay. Shipping charges can get high fast with weights like that. That becomes pretty expensive for adding weight unless you want to just pay a high premium for originality. There are also stock engine side weights that go on either side of the engine block. Those weigh about 90 or so pounds apiece. I think those are also pretty pricey but are a lot more common. You can see what those look like here:
The side weights will not fit when the standard belly sickle mowing machine is in place but should fit OK for your rear 3pt mower. I don't know where you can get any of those either. They do occaisonally show up on ebay. There are also stock AC weights for the B that attach to the front wheels but I don't have any and don't know how much they weigh - I suspect they are similar in weight to the wishbone ones.

The B is light in the front and since it was not intended or designed for 3 pt hitch work, the lack of some kind of extra front weight becomes more important. The weights I have (both wishbone and engine side) are used when plowing with the B/C pick-up plows. I just leave the wishbone weights on all the time. They don't interfere with anything and they are kind of a pain to take off and put back on.

You can also add weight to the front tires themselves. A calcium chloride solution is common and has been for many years for that purpose. There are many that hate it but I have never had a problem in using it for over 40 years. My B tires aren't loaded at the present time but my Oliver has had calcium in both front and rear tires for over 20 years now. You just need to make sure you use inner tubes and replace the valve core every five years or so. A close eye on good maintenance will avoid rim rust problems when using calcium ballast.

Rod