 Speedometer and Instrument Repair, Discovered Gold - a shop with proper magnetic calibration |
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| Conrad192 |
 Jul 27 2022, 09:19 AM
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#1
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Newbie  Group: Members Posts: 13 Joined: 18-April 20 From: Houston, TX Member No.: 24,154 Region Association: South East States  |
(IMG:style_emoticons/default/piratenanner.gif) In my '76 "Rescue Porsche" both the speedometer and odometer were not working. I discovered a local shop here in Houston named United Speedometer, which is not to be confused with United Instruments (which apparently had horror stories). The owner, Albert has been doing instrument work for decades and has a very RARE magnetic calibration device which our 914's require. I believe he told me that the coupler from the mechanical cable to the instrument is a 9-pole magnet....so there are very few shops that can properly calibrate the speedometer.
After the rebuild, I compared the speedometer to the readings on my cell phone software that uses GPS data. It was dead on. So....I pulled the tachometer out of my '83 911 and dropped it off.....next will be the 964. I will eventually get everything functioning again. I hope this "discovery" will be of use to my fellow teeners. (IMG:style_emoticons/default/first.gif) |
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Replies(1 - 4)
| Optimusglen |
Jul 27 2022, 09:32 AM
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#2
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Senior Member Group: Members Posts: 912 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest 
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QUOTE(Conrad192 @ Jul 27 2022, 10:19 AM)  (IMG:style_emoticons/default/piratenanner.gif) In my '76 "Rescue Porsche" both the speedometer and odometer were not working. I discovered a local shop here in Houston named United Speedometer, which is not to be confused with United Instruments (which apparently had horror stories). The owner, Albert has been doing instrument work for decades and has a very RARE magnetic calibration device which our 914's require. I believe he told me that the coupler from the mechanical cable to the instrument is a 9-pole magnet....so there are very few shops that can properly calibrate the speedometer. After the rebuild, I compared the speedometer to the readings on my cell phone software that uses GPS data. It was dead on. So....I pulled the tachometer out of my '83 911 and dropped it off.....next will be the 964. I will eventually get everything functioning again. I hope this "discovery" will be of use to my fellow teeners. (IMG:style_emoticons/default/first.gif) Interested, may I ask how much the speedo rebuild ran you? |
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| Jim C |
Jul 27 2022, 12:54 PM
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#3
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Member Group: Members Posts: 193 Joined: 11-July 19 From: Texas Member No.: 23,294 Region Association: Southwest Region
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Will he do business via mail and do you have a mailing address?
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| Bullethead |
Jul 27 2022, 06:06 PM
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#4
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Oil Cooled heart Group: Members Posts: 897 Joined: 24-June 10 From: South Florida Member No.: 11,875 Region Association: South East States
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QUOTE(Jim C @ Jul 27 2022, 02:54 PM) Will he do business via mail and do you have a mailing address? Yes, and yes. http://www.usande.com/ Contact: 5335 Bingle Rd Houston, Texas 77092 Phone: (713) 690-1230 Fax: (713) 690-3722 info@usande.com Office Hours: Monday - Friday 8:00AM to 6:00PM Closed for Lunch 12:30-1:30 Closed Saturday & Sunday |
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| Jim C |
Jul 28 2022, 07:53 AM
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#5
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Member Group: Members Posts: 193 Joined: 11-July 19 From: Texas Member No.: 23,294 Region Association: Southwest Region
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Thanks!
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