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Eco 97 (1948) restoration
#683242
Sun Mar 26 2017 02:13 PM
Sun Mar 26 2017 02:13 PM
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Joined: Mar 2017
Posts: 19 Dayton
Mockingbird812
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I got this meter a couple years ago and finally had time to break it down and put it back to new. Although it looks rough on the outside the internals were really in good shape with minimal corrosion (except the insides of the lower cast plenum that houses the diaphragm (pix to follow). Jack Sim has provided the necessary pieces to make it operate and look new again. His book has been invaluable. Thanks Jack (and Cindy too!) Before:
Last edited by Mockingbird812; Sun Mar 26 2017 03:11 PM.
Sam
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Please - NO offers to Buy or Sell in this forum category
Statements such as, "I'm thinking about selling this." are considered an offer to sell.
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Re: Eco 97 (1948) restoration
[Re: Mockingbird812]
#683245
Sun Mar 26 2017 02:41 PM
Sun Mar 26 2017 02:41 PM
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Joined: Mar 2017
Posts: 19 Dayton
Mockingbird812
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This is a 1948 model according to Jack and is the 2nd year for this model (Eco 97). There are a few features on this model (according to Jack) that are not found on later models. I'll point them out as I go on. Here are the guts broken down for mechanical and cosmetic restoration (notice the original brass bell after a bit of elbow grease and quad ought steel wool): 
Sam
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Re: Eco 97 (1948) restoration
[Re: Mockingbird812]
#683252
Sun Mar 26 2017 04:45 PM
Sun Mar 26 2017 04:45 PM
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Mockingbird812
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Here is what was found in the diaphragm plenum. I'm thinking that the system missed a daily moisture purge, or two over the years! I used a strong concentration of muriatic acid to eradicate the rust on the inside of the cast iron diaphragm housing......
Last edited by Mockingbird812; Sun Mar 26 2017 05:06 PM. Reason: Add text
Sam
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Re: Eco 97 (1948) restoration
[Re: Mockingbird812]
#683254
Sun Mar 26 2017 05:05 PM
Sun Mar 26 2017 05:05 PM
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Joined: Mar 2017
Posts: 19 Dayton
Mockingbird812
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Last edited by Mockingbird812; Sun Mar 26 2017 05:24 PM. Reason: Add text
Sam
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Re: Eco 97 (1948) restoration
[Re: Mockingbird812]
#683265
Sun Mar 26 2017 06:20 PM
Sun Mar 26 2017 06:20 PM
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Joined: Mar 2017
Posts: 19 Dayton
Mockingbird812
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https://youtu.be/e3lAMWORJsYNot so good at embedding a video, but this link is a quick test to ensure the systems work. Surprisingly it was only off by one psi prior to calibration.
Last edited by Mockingbird812; Sun Mar 26 2017 06:22 PM.
Sam
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Re: Eco 97 (1948) restoration
[Re: Mockingbird812]
#683280
Sun Mar 26 2017 07:46 PM
Sun Mar 26 2017 07:46 PM
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Joined: Aug 2014
Posts: 774 Plano TX
SandPCollector
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Plano TX
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Neat to see the before and after pictures. Really nice workmanship.
Regards, Jim
I collect gas pump salt and pepper shakers and the plastic coin banks both made by AVSCO.
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