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Restoring weathered boiler stampings


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  #1  
Old 11-02-2010, 12:01:44 AM
Dave Richards Dave Richards is offline
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Default Restoring weathered boiler stampings

I reciently purchased a 1924 Mundy Donkey steam hoist. The boiler looks to be servicable and I would like to apply for reinstatement and inspection in my state. The "S" stamp, State number and some others are visable, but others are pretty obscured in pitting. Has anyone had any sucess at restoring stampings in a case like this. It's a little different than chemicaly "raising" stamped numbers that have been ground off. I am hesitant to do any sanding, etc. for fear of making things worse. Thanks, Dave Richards
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Old 11-02-2010, 08:20:10 AM
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M Zeigler M Zeigler is offline
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Default Re: Restoring weathered boiler stampings

Dave,
I had a similar issue with my Peerless years ago, when I asked the Pennsylvania state inspector about it he looked the numbers over, got his stamps out and struck the numbers in a place where they not subject to the elements. He also noted in the inspection report that he had done this.

,Mike
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Old 11-03-2010, 09:10:48 PM
miwbjs miwbjs is offline
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Default Re: Restoring weathered boiler stampings

Dave how did you make out? I am having the same problem.
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Old 11-03-2010, 10:29:16 PM
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JBoogie JBoogie is offline
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Default Re: Restoring weathered boiler stampings

have you tried to gently file or sand the rough stuff off and taking an etching with paper and crayon or pencil?
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Old 11-04-2010, 01:10:17 AM
Jeff Smith Jeff Smith is offline
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Default Re: Restoring weathered boiler stampings

I had the same issue so I asked around and found out that muradic acid would show the numbers so I sanded the area a little and tried the acid and I could read them enough for me to get the numbers that I needed. I then called the National Board with those numbers and for $22+/- they sent me the paperwork that went with that boiler. Once I had the paperwork in hand, then I could read one area that was a little difficult and it was what I thought it was stamped.
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Old 11-06-2010, 10:57:41 PM
Dave Richards Dave Richards is offline
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Default Re: Restoring weathered boiler stampings

Thanks Jeff, I'll try that.
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Old 11-06-2010, 11:04:13 PM
Pete Deets Pete Deets is offline
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Default Re: Restoring weathered boiler stampings

Dave,
You may consider bouncing this question off your inspector. It may help you establish the fact that you care about what you're doing in his/her eyes and any bit of positive energy you can get going will help in the long run. Just my opinion & worth what you've paid for it .....PD
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