Welding Cast Iron - Ruston Governor Gear

Little bit of a tricky job, but like anything else, if you think it through, it's not too hard.
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[@DreamState71822]

Great job with more than adequate explanations. Last piece of cast iron I had to weld was an old exhaust from a Farmall tractor. Between the Hobart high nickel rods and a fire pit managed to get the weld job done without any cracking and followed the weld job with a file and straight managing to get the mating surface flat enough still works today.

[@johnraynor5095]

78yr old mechanic. Machinist friend showed me hoe to drill a hub like on your ge ad r, drill it, tap 1/4 pipe threads and connect it to a hyd rated pipe fitting and to a Porta power. Apply PSI, to losses it from the shaft and slide it off. I was amazed.

[@Parents_of_Twins]

I'll have to try that. Thanks for sharing.

[@oldiron149]

That came out great,, Cast Iron can be so inconsistent, you pulled out all the tricks to get it ! pretty much any good cast iron welding rod is about $100.00 #

[@rw3dog]

Nice work Connor , I bought some Nickel rod 4 years ago and like you have ignored my project :)

[@themadmailler]

the time will come eventually!

[@wvrockcrusher]

That should hold together and work well. I like to braze repair cast iron because I have very good results with it. Welding sometimes is a crap shoot with cast. Depends on how dirty or oily it is. I agree on the Hobart rods. They don't run very well compared to others. I like Lincoln or ESAB rods the best.

[@themadmailler]

I've done some brazing, but since I have more time behind a welding helmet than torch goggles, this was my preferred choice. If I have some less critical repairs down the road I might try brazing!

[@ftr2232]

Good job Now lets see that part on the engine

[@themadmailler]

you'll see it! I don't know when, but...someday!

[@ponkkaa]

Noob question...Will the extra metal added in the weld cause an imbalance when the gear is spinning? Will that little bit matter?

[@themadmailler]

It would matter if it spun faster. This won't see more than 100rpm or so.

[@behroozkhaleghirad]

This video's title should have been "Pakistani shenanigans"

[@themadmailler]

Then I would have welded it wearing sandals, no gloves, and doubled up sun glasses!

[@behroozkhaleghirad]

@@themadmailler just kidding bro. People say welding cast Iron doesn't hold, but as a mechanic I kinda disagree. If you do the things properly and heat the work piece up before welding and down after welding gradually and evenly it works pretty well. I wouldn't weld a crankshaft or differential like they do in Pakistan, but there is no problem with welding pieces that are not under high stress and load

[@themadmailler]

@@behroozkhaleghirad I didn't take offense! I do get a kick out of those videos though, they sure do get the job done no matter what! I'm no professional at cast iron repair, but I did know someone who could weld it up no problem, cylinder heads and everything.