Cast Iron Fin repair inside <------

[ClassC Dan]

Hey All, since I'm new here Id like to share a repair I just did on a set of square base cylinders. These needed a bunch of fin repair, valve seats, and a sleeve, All work was done by me in my hobby shop.

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Broken exhaust spigot

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I used the cast iron bar, bored out on the lathe and sized to the correct OD

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Spigot welded on, I use lots of pre and post heat, and 99NI stick welding rod that I clean the flux off and TIG with it

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For the smaller repairs i was able to use some donor fins, but for this big one I used a good old fry pan, it was the right thickness

[ClassC Dan]

continued

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welded up

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shaped

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Painted

[pan620]

Thanks for the pictures, have ever used silicone bronze rod on cast iron?

[ClassC Dan]

Thanks for the pictures, have ever used silicone bronze rod on cast iron?

Hey, Pan620 I have not but I know a lot of guys do, I've just had pretty good success with NI99 so have stuck with it

[pisten-bully]

Hey All, since I'm new here Id like to share a repair I just did on a set of square base cylinders. These needed a bunch of fin repair, valve seats, and a sleeve, All work was done by me in my hobby shop.

Dan, that looks like fun! Good on you to tackle the job, nice end result!