But the econonic activity of their production and use has generated billions over the last 100 years
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6 years ago
BMC A Series - remove thermostat housing
Loading thread data ...
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6 years ago
Yep. Mezac or 'pot metal'
Copper zinc alloy IIRC
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6 years ago
+1. Think thats how I did it last time around 1974...
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6 years ago
and saved milions of lives so far. And many more to come.
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6 years ago
The cost benefit ratio for nuclear power is far far better.
Generated energy to save millions, killed tens.
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6 years ago
The very first steering lock I ever saw was an aftermarket fitment to an E-Type Jag. That didn't engage till you removed the key. And I've never had one which did. It would be extremely stupid.
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6 years ago
Same here - on mine the ground strap was short and mounted on the alternator bracket. Just in the place to get knocked when changing a fan belt. Or draining the cooling system, via the bottom hose. And it eventually pulled out of its crimped terminal, and grounded via the throttle cable. Which melted. Made up a longer ground strap using nice flexible welding cable and routed it out of the way.
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6 years ago
Actually Mazak. Or Zamak. Officially 95% zinc, 5% aluminium. From the days when ally was very expensive. Known as pot metal, as easy to cast.
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6 years ago
Just to add, it will have corroded round the studs which is why it won't come off. You could drill small holes down the sides of the studs to get some penetrating oil in - just don't drill down enough to damage the cylinder head mounting face. Use a thread sealer on the new one to prevent future corrosion.
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6 years ago
Only powers a few of the millions of vehicles though.
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6 years ago
quite a lot of trains though...
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6 years ago
Often wondered why this stuff seems to rot away so easily being mainly zinc? Zinc as a roofing material seems to have a pretty long life.
One of the worst is chrome plated fittings made with at as a base. Corrodes away under the chrome and is near impossible to re-plate well.
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6 years ago
I assume you don't mean the Ford Nucleon :)
NT
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6 years ago
The only one I've had to brute-force I managed to loosen the housing by tapping it from side to side with a block of wood and a big hammer. I'd already broken one of the studs and had to drill it out, they were all badly corroded. I probably still have some spare studs kicking around, ISTR I bought a pack of ten.