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  #1111 (permalink)  
Old 06-08-2009, 12:13 AM
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Ok, guys, seems that I'm again stop the thread, so here is answer


I think, Brian can take floor.

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  #1112 (permalink)  
Old 06-09-2009, 10:41 AM
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Brian Martin,Freelance adviser
 
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LOLOL, pretty funny. Of course that didn't even go thru my mind.

Ok, I have a good one, I am going to go take a photo out in the shop and post it. A "blast from the not to distant past" for us old guys.

Brian
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  #1113 (permalink)  
Old 06-09-2009, 03:45 PM
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Ok boys and girls, this is an interesting one.

I will start without telling you the car. But it was introduced about 1984 or so and was discontinued about 1988.

What is this in the photo and what is the story behind it?

Brian


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  #1114 (permalink)  
Old 06-09-2009, 05:38 PM
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i will guess its an inertia switch to kill electric fuel pumps in the event of an accident there were a few problems with fuel pumps continuing to pump gas after a collision making it a severe fire hazard.
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  #1115 (permalink)  
Old 06-09-2009, 06:12 PM
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Nope, it has nothing to do with anything electrical.


Brian
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Old 06-09-2009, 09:59 PM
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Brian, it looks like a body panel mounting boss, like what was used to attach the outside skin on an older style Saturn or a Fiero.

Or a cage nut for the hood stop/bumper adjustment nut on a Yugo. That's the only car I can think of that was started in 84 and ended in 88.
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  #1117 (permalink)  
Old 06-09-2009, 10:07 PM
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Wait a minute! I just did a quick little research and found out that the Fiero was made from 84 to 88. I thought that they lasted longer then that, so I'm gonna go with body panel mounting/attachment boss on a Fiero.

If it is what I think it is, the story is this: The Fiero was a unit body car but the skin was plastic. The unit body was very close in design to monococh style construction. These bosses were placed on the unit body in the necessary locations to give an attachment point for the skin ie. fenders quarters etc. Before the skin was attached to the car the complete unit body was placed in a jig and then the bosses were machined, drilled and tapped by robot arms. Exacting tolerances were obtained and this ensured proper fitments and alignment of the body panels. I think it was one of the first attempts at CNC for the body and chassis assembly.

Last edited by Chris Kemp; 06-09-2009 at 10:30 PM.
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  #1118 (permalink)  
Old 06-09-2009, 10:25 PM
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You are very right Chris, it's a "cage nut" on a Fiero. However, that is just too easy for Hotrodders Trivia, right?

I was willing to give you guys that, but what was the story behind it?

GM used a technology never used before (at least with any car I had ever seen) with these "nuts". What was the idea behind them, how did they work different than any GM car before?

Brian
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  #1119 (permalink)  
Old 06-09-2009, 10:32 PM
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Quote:
Originally Posted by MARTINSR
You are very right Chris, it's a "cage nut" on a Fiero. However, that is just too easy for Hotrodders Trivia, right?

I was willing to give you guys that, but what was the story behind it?

GM used a technology never used before (at least with any car I had ever seen) with these "nuts". What was the idea behind them, how did they work different than any GM car before?

Brian
The Fiero was a unit body car but the skin was plastic. The unit body was very close in design to monococh style construction. These bosses were placed on the unit body in the necessary locations to give an attachment point for the skin ie. fenders quarters etc. Before the skin was attached to the car the complete unit body was placed in a jig and then the bosses were machined, drilled and tapped by robot arms. Exacting tolerances were obtained and this ensured proper fitments and alignment of the body panels. I think it was one of the first attempts at CNC for the body and chassis assembly.
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  #1120 (permalink)  
Old 06-09-2009, 10:45 PM
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You bugger, I didn't think anyone could find it that fast. Pretty wild isn't it? While every GM car before it had piles of shims, the Fiero had none. Those "pads" were machined to the correct height and the hole drilled in the perfect spot for the fender to be bolted on. The fender didn't have slotted holes, you had ONE place for the fender to go, and it fit perfect every time!

I saw a photo of the "mill" that it went thru, it was a like a two deep one car garage. Very interesting I think.

Chris, you got it buddy, it's your turn.

Brian
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  #1121 (permalink)  
Old 06-09-2009, 10:56 PM
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Quote:
Originally Posted by MARTINSR
You bugger, I didn't think anyone could find it that fast. Pretty wild isn't it? While every GM car before it had piles of shims, the Fiero had none. Those "pads" were machined to the correct height and the hole drilled in the perfect spot for the fender to be bolted on. The fender didn't have slotted holes, you had ONE place for the fender to go, and it fit perfect every time!

I saw a photo of the "mill" that it went thru, it was a like a two deep one car garage. Very interesting I think.

Chris, you got it buddy, it's your turn.

Brian
The only thing I had to look up was the years that the Fiero was in production. All through the eighties I worked in auto body repair mainly on GM cars and I just happened to remember this about the Fiero. I also remember putting a few of them on the Celest bench.

So what are you going to do with the one that you have? Shoe horn a front wheel drive Northstar in it and skin it with a Ferrari body. That would be cool!
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  #1122 (permalink)  
Old 06-09-2009, 10:59 PM
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Okay here's my question: What does Eugen Langen, Gottlieb Daimler, Wilhelm Maybach, Prosper L'Orange and Ettore Bugatti all have in comon.
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  #1123 (permalink)  
Old 06-09-2009, 11:09 PM
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You have got to make it harder to Google. They all worked for Deutz AG. Which was/is a motor manufacturer once connected with Carl Benz, which split up in 1871 and became Motoren-Werke Mannheim AG.

Brian
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  #1124 (permalink)  
Old 06-09-2009, 11:13 PM
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Quote:
Originally Posted by Chris Kemp
So what are you going to do with the one that you have? Shoe horn a front wheel drive Northstar in it and skin it with a Ferrari body. That would be cool!
Nope, it's a customers car. A very nice original low mile car. But it got whacked in the front and was deemed a total loss. The value was something like $3500. The guy is paying out of his pocket another $3000 to fix it.

Brian
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  #1125 (permalink)  
Old 06-09-2009, 11:23 PM
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Originally Posted by MARTINSR
You have got to make it harder to Google. They all worked for Deutz AG. Which was/is a motor manufacturer once connected with Carl Benz, which split up in 1871 and became Motoren-Werke Mannheim AG.

Brian
Very good! It is also amazing to me that Otto, the inventor of the four cycle engine founded the company and they all worked for him. So much genius in one place!

The floor is your's again and I am going to bed!
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