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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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18th Dec 2019, 6:29 pm | #41 | |
Dekatron
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Re: Oiling Old Mechanisms
Quote:
B
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18th Dec 2019, 6:44 pm | #42 |
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Re: Oiling Old Mechanisms
WD40 is just white spirit mixed with a small quantity of machine oil. The resultant low viscosity fluid can then be sprayed onto surfaces as a mist. The white spirit evaporates leaving a film of relatively viscous mineral oil covering the surface. That's how it works as a corrosion inhibitor, its original design purpose.
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18th Dec 2019, 8:38 pm | #43 |
Dekatron
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Re: Oiling Old Mechanisms
I've just found this Youtube video testing different releasing agents. It does seem to confirm that most of these products have the about the same effectiveness (my own experience), though the prices vary considerably. The American "Liquid Wrench" did well.
Dated 2018, I've never seen it before https://www.youtube.com/watch?v=xUEob2oAKVs. Note the safety warning about acetone/ATF. B
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Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch. |
19th Dec 2019, 12:29 am | #44 | |
Nonode
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Re: Oiling Old Mechanisms
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I'm not sure about it, but certainly the older cans used to have a rocket on the can.
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19th Dec 2019, 12:42 am | #45 |
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Re: Oiling Old Mechanisms
The original formula was developed in 1953 to stop Atlas nuclear missiles going rusty. It may well have been used by NASA contractors subsequently. The formula may have changed over the years but is unlikely to be radically different.
https://en.wikipedia.org/wiki/WD-40 |
19th Dec 2019, 12:46 am | #46 |
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Re: Oiling Old Mechanisms
It is on the blades of a leaf shutter! Gungy is relative.
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19th Dec 2019, 1:00 am | #47 | |
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Re: Oiling Old Mechanisms
Quote:
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Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch. |
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19th Dec 2019, 9:50 am | #48 | |
Nonode
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Re: Oiling Old Mechanisms
Quote:
Although Servisol works brilliantly on door hinges, you have to be very gentle on the button or you end up with an oily stain on the nearby wallpaper.
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19th Dec 2019, 10:21 am | #49 | |
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Re: Oiling Old Mechanisms
Quote:
Martin
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19th Dec 2019, 1:21 pm | #50 |
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Re: Oiling Old Mechanisms
Back in the day, we used to get a small box of several different oils and greases from Hitachi for VCR lubrication. Each had a label such as FLOIL which meant very little! However, they were very useful, and Charlie used to find that a mixture of an oil and grease was perfect for sliding metal parts. Plastic components used a heavy black grease, probably molybdenum based.
One modern lubricant I've found useful is DFL (dry film lubricant) which is in an aerosol. It was perfect for a non-mechanical use - that of lubricating a plastic curtain rail. The reason WD40 makes me shudder is when customers used to spray it into the flap of a VCR in the forlorn hope it would cure any problem such as a squeak or poor rewind. This would spell disaster as it did exactly what it was supposed to do - cover everything! They might as well have filled the machine with custard. It's the same as always - the right tool for the job. |
19th Dec 2019, 2:06 pm | #51 |
Heptode
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Re: Oiling Old Mechanisms
I am personally not keen on WD40 and tend to use Duck Oil instead.
This reminds me of an incident at work a good few years ago. A patient phoned in and said he had a problem with his computer and that it was not booting up. I suggested he bring it in and I would look at it (the department provided computer access to physically disabled people so on the fringes of our involvement). Other staff who knew him cringed in horror and said they would have nothing to do with it. I found out why when I found he had probably used an entire can of WD40 on the hard drive and the whole thing stunk! Needles to say I soon sent him on his way. In another incident it was my fault as we were having problems with an electronic door lock sticking. After numerous tries to sort we called in a locksmith. He soon put me in my place as I had lubricated it (thin oil). He suggested it did not need it and that was causing a problem. My favourite is some 3 in One graphited oil I have got. It's thin and leaves a grapite residue for longer term lubrication. |
19th Dec 2019, 2:23 pm | #52 |
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Re: Oiling Old Mechanisms
Plastic covers? PTFE aerosol lubricant any good?
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19th Dec 2019, 5:08 pm | #53 | |
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Re: Oiling Old Mechanisms
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Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch. |
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19th Dec 2019, 5:41 pm | #54 | |
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Re: Oiling Old Mechanisms
Quote:
A 'dewatering' product is rather different to a lubricant though - dewaterers should cause moisture to bead-up and roll off, then relatively quickly evaporate and leave the barest of oily traces behind as corrosion-inhibitors. As such, they're really not good as lubricants. |
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