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Re: Unleaded gas
#21
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Packard5687
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Here is the story of the scientist who proved that lead added to gasoline was a major public health hazard and why it was ultimately removed from gas:
http://mentalfloss.com/article/94569/ ... e-earth-and-then-saved-it

Posted on: 2018/4/2 21:01
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Re: Unleaded gas
#22
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dennis Nielsen
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Hello All, from S. Africa.
Castrol, which is now part of BP' sell a product "Valve Master" for use with unleaded petrol. A word of warning about petrol containing alcohol, if you have a fuel pump fitted with an old type of diaphragm, i.e. not alcohol compatible, the alcohol will in time destroy the rubber of the diaphragm and these particles will end up blocking your carburetor.
I have had this experience with my 1938 '8'. As this car has its steering box on the RHS and right next to the fuel pump, removing said pump is not for the faint hearted. I was forced to remake the diaphragm using 3 layers of 0.5mm thick butyl rubber material which was imported from Australia.
Regards, Dennis

Posted on: 2018/5/27 5:16
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Re: Unleaded gas
#23
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Leeedy
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Quote:

Packard5687 wrote:
Here is the story of the scientist who proved that lead added to gasoline was a major public health hazard and why it was ultimately removed from gas:
http://mentalfloss.com/article/94569/ ... e-earth-and-then-saved-it


While I've been aware of this scientist and his work for many years, this is a very lengthy article. A much shorter, but just as informative piece was done in video on the television show, "Cosmos" with Dr. Neil deGrasse Tyson in recent years.

While it was a wonderful thing that lead has been removed from gasoline and that the environmental levels of lead are now on the decline, things sometimes go much too far. There is nothing like fanaticism in reforms or rules. A good example is that not long ago I was prevented from buying a beautiful mansion that was built in 1850. The reason? The VA inspector going through the house to approve the loan said he "discovered lead in the paint"!!!! Imagine that. A house built in 1850 with lead in the paint. Wow. That "discovery" by the VA inspector popped the balloon with the VA underwriter 10 days from the close of escrow... and that was that.

Posted on: 2018/5/27 10:29
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Re: Unleaded gas
#24
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Chuck McDonald
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I was not aware of that? I was under the impression that the majority of the cars sold to the general public were of low compression, what I mean by low is under 7.0 and fuel at the time only had low octane ratings; I thought, well my 37 282 runs super on 86 and I did try 93 and actually got less MPG, less meaning 2 MPG, I average 13 MPG city and 18 on highway, anyway live and learn and appreciate you explaining what was going on "Back in the day"

Posted on: 2018/5/30 5:13
Chuck McDonald
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Re: Unleaded gas
#25
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Craig Hendrickson
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Maybe 15 years ago, I experienced exhaust valve seat "recession" on my 55 Pat due to the use of unleaded gas on a couple of long trips. I pulled the heads (no easy feat) and had the exhaust valve seats fitted with hardened seats. That solved it and I haven't had a problem since.

Craig

Posted on: 2018/5/30 9:20
Nuke them from orbit, it's the only way to be sure! Ellen Ripley "Aliens"
Time flies like an arrow. Frui
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