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A Work In Progress For BST 2030  Rate Topic 
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 Posted: Fri Aug 27th, 2021 05:26 am
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Russ Huber
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 Posted: Fri Aug 27th, 2021 06:15 am
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Russ Huber
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 Posted: Fri Aug 27th, 2021 09:35 am
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Mark Behrend
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That definitely needed attention! Great job so far!

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 Posted: Fri Aug 27th, 2021 03:24 pm
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Russ Huber
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Mark Behrend wrote: That definitely needed attention! Never panic. I have masked and re-masked the cast hub blade 2 times now painting it. It ain't right until it's right as rain. Fact Jack.  :D 

Last edited on Fri Aug 27th, 2021 04:51 pm by Russ Huber

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 Posted: Fri Aug 27th, 2021 06:34 pm
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Richard Daugird
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Great work Russ! Silicon bronze crack repair?

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 Posted: Fri Aug 27th, 2021 06:44 pm
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David Kilnapp
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Wow, nice work on that crack! Very impressive! The motor tag and the paint job look terrific too! FIRST CLASS!

Last edited on Fri Aug 27th, 2021 06:45 pm by David Kilnapp

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 Posted: Fri Aug 27th, 2021 07:32 pm
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Russ Huber
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Richard Daugird wrote: Silicon bronze crack repair?
I have friend we go way back that is really talented with his Mig welder. he uses the same wire feed for welding steel. If you go easy, I have yet to have an incident where the cast iron cracks, and many welding repairs on cast iron have been done. I dolled the outside of the housing where the crack was repaired. That heavy bead along the crack on the inside will insure the integrity of the crack repair beyond a doubt.  :D  Being it is out of sight inside the housing, non interference with stator removal or insert, it's out of mind.






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 Posted: Fri Aug 27th, 2021 07:46 pm
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Richard Daugird
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I have heard of but not seen cast iron MIG welding. Did he pre-heat it?

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 Posted: Fri Aug 27th, 2021 07:48 pm
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Russ Huber
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David Kilnapp wrote:  FIRST CLASS!
Thanks David, but not yet.  :D  All but the cast blade hub has been powder coated with gloss black. I used flash with some pictures that give a grayish tint to the castings. The fan is actually a nice rich dark gloss black much like factory. Everything is ready to slap it together with exception of the blade. I masked the blade to paint it with multiple coats of gloss black Dupli-color acrylic enamel. I have to paint outside and picked a bad time of the day for a bug invasion in my paint 1st attempt.  :D  The second time I  got the first coats on bug free and after 5 days. I noticed one imperfection in the paint on one hub spider finger. I sanded it and gave another coat and found out 5 days wasn't enough for the heavy coats to dry. The paint started to raise and wrinkle in small areas. The 3rd time should be lessoned learned and a charm. 

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Last edited on Fri Aug 27th, 2021 07:49 pm by Russ Huber

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 Posted: Fri Aug 27th, 2021 07:54 pm
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Russ Huber
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Richard Daugird wrote: I have heard of but not seen cast iron MIG welding. Did he pre-heat it?
No preheating unless you had it in the ice box. :D  The Mig just zaps a bead lickity split. He does so much at a time as to not excessively heat the iron. The cracks happen when the iron heats way up and cools down to rapidly.




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 Posted: Fri Aug 27th, 2021 07:57 pm
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Russ Huber
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This repair of mine was done with a Mig.  My friend fabricated a section of steel to replace the fractured piece gone missing and welded in place and dolled it with a grinder.















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Last edited on Fri Aug 27th, 2021 07:59 pm by Russ Huber

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 Posted: Fri Aug 27th, 2021 09:11 pm
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Doug Wendel
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I've used a MIG welder on cast iron fan parts many times with good results. I do heat up the parts in my oven first.

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 Posted: Sun Sep 12th, 2021 05:19 am
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Russ Huber
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