Haybine , you need DCRP. See my post in hobart forum (weld talk) 'Cast to steel' in "welding processes". Ed

Haybine,
If you are new to welding you will benefit greatly from the US Army's training circular. It should have information on solving your problem, but if not, you will at least have a valuable reference.

http://www.machinist.org/army_welding

Do not interpret this as a contradiction to any specific advice; I have found there often are several solutions to any welding problem, not all of which may be equally practical.

I recall a table listing various material failures, including engine blocks, and recommendations on procedures. Frankly I cannot make any recommendation on applicable procedures.

How do you plan to cut the water jacket?

Good luck with your repair
d

Are you trying to repair a crack in the cylinder itself? If so boring and sleeving will give a better result.

I would like to hear a more detailed description of the problem.

Bill

to all who responded, thanks for the information. the tractor is quite old, maybe somewhere in the 1940's or early 1950's model. it belongs to a friend of mine who was wanting to restore it and use it on his small acreage. after looking at some of the other engine parts and the general condition of the tractor, he decided not to pursue the restoration any further. it simply was in too bad a shape and certain repair parts are either not available or hard to find. thanks again, ya'll. be safe!