Antoine, This was a history reminder and brought back childhood and youth memories. I grew up using the BSW system and I still have a great collection of taps and dies. As a machinist, I have to mention that the Whitworth system it is not used any longer in GB or anywhere in Europe because it has been replaced and pushed out by the Metric standard system. The good news is that you could install a ANSI nut with a 60* thread to a whitworth bolt but not the opposite. Use a bit of antiseize compound and it will be fine. The only thread that it is not possible to replace with the north American standards is ½ thread. The northamerican is 13 threads per inch and the whitworth is 12 TPI.
If you any more assistance let me know the size of the nut which I dont think is larger than ¼ or 5/16 at the most and Ill see what I can do. Yanni Boatless in Ontario Not for long 92 Lebaron 3.0 convertible 95 LeBaron 3.0 turbo convertible 07 Yamaha Straotoliner S SCRC 011059 SRO 26-6483 TURBO!!!!!cause bottles are for babies and superchargers blow!!! Which would you rather have, go fast goodies or shiny shoes? Your feet may look good but if your engine blows you ain't going nowhere From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Antoine Rose via CnC-List Sent: November 17, 2014 11:19 PM To: Ronald B. Frerker; cnc-list@cnc-list.com Subject: Re: Stus-List Bilge pump parts for C & C 30-1 I support all the recommendations to disassemble it first. By the way, when I disassembled it, this simple pump taught an history lesson. It is a British made Whale Gusher, a very good pump. My only problem was the nut, totally eaten out by corrosion. Simple, I'll find another nut. Well, the nut I purchased didn't fit. Might be a metric one. Nope. Doing some research, I found out that the nut coming from England was made using the Whitworth standard, not available in North America. I contacted the importer who wanted to sell me a kit for 70$. Are you nut? I won't purchase a 70$ kit to replace a simple nut. Ok, let's go on wiki, to find out that the Whitworth was the very first standard for nuts and bolt. "The Whitworth thread was the world's first national screw thread standard,[1] <http://en.wikipedia.org/wiki/British_Standard_Whitworth#cite_note-1> devised and specified by Joseph Whitworth <http://en.wikipedia.org/wiki/Joseph_Whitworth> in 1841. Until then, the only standardization was what little had been done by individual people and companies, with some companies' in-house standards spreading a bit within their industries. Whitworth's new standard specified a 55° thread angle and a thread depth of 0.640327p and a radius of 0.137329p, where p is the pitch. The thread pitch increases with diameter in steps specified on a chart. The Whitworth thread system was later to be adopted as a British Standard to become British Standard Whitworth. An example of the use of the Whitworth thread is the Royal Navy <http://en.wikipedia.org/wiki/Royal_Navy> 's Crimean War <http://en.wikipedia.org/wiki/Crimean_War> gunboats. These are the first instance of "mass-production" techniques being applied to marine engineering as the following quotation from the obituary from The Times <http://en.wikipedia.org/wiki/The_Times> of 24 January 1887 to Sir Joseph Whitworth (18031887) shows: The Crimean War began, and Sir Charles Napier <http://en.wikipedia.org/wiki/Charles_Napier_%28Royal_Navy_officer%29> demanded of the Admiralty 120 gunboats, each with engines of 60 horsepower, for the campaign of 1855 in the Baltic <http://en.wikipedia.org/wiki/Charles_Napier_%28Royal_Navy_officer%29#Baltic _Campaign> . There were just ninety days in which to meet this requisition, and, short as the time was, the building of the gunboats presented no difficulty. It was otherwise however with the engines, and the Admiralty were in despair. Suddenly, by a flash of the mechanical genius which was inherent in him, the late Mr John Penn <http://en.wikipedia.org/wiki/John_Penn_%28engineer%29> solved the difficulty, and solved it quite easily. He had a pair of engines on hand of the exact size. He took them to pieces and he distributed the parts among the best machine shops in the country, telling each to make ninety sets exactly in all respects to the sample. The orders were executed with unfailing regularity, and he actually completed ninety sets of engines of 60 horsepower in ninety days a feat which made the great Continental Powers stare with wonder, and which was possible only because the Whitworth standards of measurement and of accuracy and finish were by that time thoroughly recognised and established throughout the country. An original example of the gunboat type engine was raised from the wreck of the SS <http://en.wikipedia.org/wiki/SS_Xantho> Xantho by the Western Australian Museum <http://en.wikipedia.org/wiki/Western_Australian_Museum> . On disassembly, all its threads were shown to be of the Whitworth type.[2] <http://en.wikipedia.org/wiki/British_Standard_Whitworth#cite_note-2> " How did it ended up? I was traveling to England for vacation that summer. I found a shop in Portsmouth and had a great conversation with the shop owner who sold me a pair of half inch whitworth treaded nuts. I keep the second one preciously in my garage. Antoine (C&C Cousin) Le 2014-11-17 à 10:31, Ronald B. Frerker via CnC-List a écrit : On the subject of bilge pumps, mine is not working. It's the original pump located on the cockpit floor. I suspect the diaphram is ruptured. I'm an hour from the boat and freezing; I believe it's a Whale gusher??? Any idea where parts can be found? Ron Wild Cheri STL _______________________________________________ This List is provided by the C&C Photo Album Email address: CnC-List@cnc-list.com <mailto:CnC-List@cnc-list.com> To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
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