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Post by c64 on Sept 27, 2014 10:52:42 GMT
Today I have worked on my "new" car again. Unlike my old one, this one was parked outside for over 19 years (The previous owner owned it for 19 years and has no garage, I had talked to her. I have no clue what the first owner did. I have transferred a lot of the plastic panels from my old one to the "new" one. Even if the cars are almost identical and about the same age, all plastic parts of the "new" car are very brittle and start to peel. Also the plastic clips snap in half when trying to remove the panels. On my old car, most of the clips remained intact. Fortunately I once had bought a big bag of clips for my old car but never used them. Using plastic for structural purposes is a bad idea, plastic ages, especially when in the sun. An "all plastic car" would have to have a "best before" entry in the documents and you need to throw the car away when it became too old. had an ex girlfriend who had bought a Honda prelude brand new. when the car was 10 years old, the metal door hinges had rusted to the point that the driver's side door fell off. plastic isn't the only thing that ages. As long as the metal has paint on it, it won't age remotely as fast. Also my car is partially tin coated so it is pretty rust resistant and the rest you can weld. My 1989 Passat is still in excellent condition - expect for the rubber, foam and plastic parts. Yesterday I discovered that the camshaft belt cover starts to brittle to dust.
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Post by the light works on Sept 27, 2014 14:09:47 GMT
had an ex girlfriend who had bought a Honda prelude brand new. when the car was 10 years old, the metal door hinges had rusted to the point that the driver's side door fell off. plastic isn't the only thing that ages. As long as the metal has paint on it, it won't age remotely as fast. Also my car is partially tin coated so it is pretty rust resistant and the rest you can weld. My 1989 Passat is still in excellent condition - expect for the rubber, foam and plastic parts. Yesterday I discovered that the camshaft belt cover starts to brittle to dust. tell that to my ladder rack. the idiots that built it just powder coated it and put it on and it was blistering within the first year. I've seen cast aluminum DISSOLVE here...
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Post by c64 on Sept 27, 2014 17:38:53 GMT
As long as the metal has paint on it, it won't age remotely as fast. Also my car is partially tin coated so it is pretty rust resistant and the rest you can weld. My 1989 Passat is still in excellent condition - expect for the rubber, foam and plastic parts. Yesterday I discovered that the camshaft belt cover starts to brittle to dust. tell that to my ladder rack. the idiots that built it just powder coated it and put it on and it was blistering within the first year. I've seen cast aluminum DISSOLVE here... Why do you think Thermit works so fine? Aluminum wants the oxygen much more badly than the rust so the Aluminium steals the oxygen releasing an immense amount of energy which is partially used up to purify the iron but there is still plenty of energy left. Aluminum can corrode just fine which is the only reason why it is banned for common electrical wiring.
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Post by the light works on Sept 27, 2014 20:42:37 GMT
tell that to my ladder rack. the idiots that built it just powder coated it and put it on and it was blistering within the first year. I've seen cast aluminum DISSOLVE here... Why do you think Thermit works so fine? Aluminum wants the oxygen much more badly than the rust so the Aluminium steals the oxygen releasing an immense amount of energy which is partially used up to purify the iron but there is still plenty of energy left. Aluminum can corrode just fine which is the only reason why it is banned for common electrical wiring. no, it also has a LOT of thermal expansion, which means it can actually unscrew terminals if it is wrapped around them; or wiggle out of other terminals in some cases.
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Post by c64 on Sept 27, 2014 21:16:21 GMT
Why do you think Thermit works so fine? Aluminum wants the oxygen much more badly than the rust so the Aluminium steals the oxygen releasing an immense amount of energy which is partially used up to purify the iron but there is still plenty of energy left. Aluminum can corrode just fine which is the only reason why it is banned for common electrical wiring. no, it also has a LOT of thermal expansion, which means it can actually unscrew terminals if it is wrapped around them; or wiggle out of other terminals in some cases. Nope, the real problem is that the ends oxidize and Al-oxide is a very good insulator. damaged aluminum wiring and aged connections can start a fire very easily.
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Post by the light works on Sept 27, 2014 21:45:26 GMT
no, it also has a LOT of thermal expansion, which means it can actually unscrew terminals if it is wrapped around them; or wiggle out of other terminals in some cases. Nope, the real problem is that the ends oxidize and Al-oxide is a very good insulator. damaged aluminum wiring and aged connections can start a fire very easily. well, what do I know, I'm just an electrician and a firefighter.
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