25 years ago today – Courage vs Police state

Builders,

Twenty five years ago today, one man, who’s identity will likely never be known, demonstrated an act of courage in an attempt to stop the government of the Peoples republic of China from murdering it’s own unarmed people, humans who were simply seeking human rights that most people in America take for granted every day.

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His exact fate is unknown, but he very likely died for this gesture.  It remains one of the single most moving acts on this planet in the 20th century. In those 100 years, time which saw the three worst dictators and many of lowest points in recorded history, this man, his identity “known but to God,” is remains a glimmer of hope that the goodness of man might reside in all of us and hopefully be awakened.

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The optimist in me believes that this man’s life was a triumph in history, he meant something by any measure as long as people understand that life is a gift from the universe, and not an allowance by the political state. But as a realist, I am forced to admit that we failed this man, because 25 years later, China is still a totalitarian police state without human rights, but as a nation we are A-OK with this as long as they fill up the shelves of Wall Mart and Home Depot with cheap consumer goods and they use the profits to finance our debt.

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25 years ago my understanding of what it means to be an American did not allow me to see that countless American businessmen, driven solely by greed, would overlook any human rights abuse in China, export any US job there and make any deal, solely motivated by greed.  This includes The head of the EAA, Jack Pelton, who as the CEO of Cessna, set up C-162 production in China. He failed, but it tells you he has no allegiance to American workers nor our nations core values, unless you think greed was an unwritten cause in our Constitution. To understand how many GA aviation companies are now owned by the Chinese, look at this: Communist Chinese government at Oshkosh

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There are 1.7 Billion people in China, and very few of them have ever heard of this man of Tiananmen Square, because they live in a country of censorship and total government control. For a long time there was a myth that if we just dealt with places like China, they would have to end up with more open societies.

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This joke was primary told to us by giant corporations who wanted access to cheap labor and new markets. Only the really naïve thought companies went to China for the betterment of the humans there. Sergey Brin, co-founder of Google, worth 30 billion dollars, was born in the USSR, a police state that denied human rights to his parents because of their faith. The came to the US as refugees. 20 years later, Brin cuts a deal on censorship with the Government of China for access to their country. He claimed it was in the best interest of the Chinese people.  He made his cash for this deal with the devil, but eventually learned that they have stolen his companies secrets, including accessing identities of dissidents. read below and think about how one man escapes a police state and his son essentially hands over the names of human rights advocates for money.

“On January 12, 2010, Google reported a large cyber attack on its computers and corporate infrastructure that began a month earlier, which included accessing two Gmail accounts and the theft of Google’s intellectual property. After the attack was determined to have originated in China, the company stated that it would no longer agree to censor its search engine in China and may exit the country altogether. David Drummond Google’s Senior Vice President of Corporate Development, reported that “a primary goal of the attackers was accessing the Gmail accounts of Chinese human rights activists, but that the attack also targeted 20 other large companies in the finance, technology, media and chemical sectors.” It was later reported that the attack included “one of Google’s crown jewels, a password system that controls access by millions of users worldwide””

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On this day, do not take your freedom to read about this man for granted, spend 15 minutes reading about a man who thought freedom of speech was worth dying for.

http://en.wikipedia.org/wiki/Tank_Man

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If you need to understand that America is about the defense of human rights and not corporate profits and greed, get a good look at the man in the picture, he is Fang Zheng. Notice that he has no legs, because they were ground off by a T-59 tank tread in Tiananmen Square, perhaps the very same tank that the unknown hero tried to stop.

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  Today, Zheng lives in the United Sates, and has been provided with prosthetic legs after spending 20 years in a Chinese wheel chair. In 2008 his re-found ability to simply stand was a centerpiece of an event to bring awareness to human rights. If you walked today and could read any paper you wanted, perhaps you can spend 10 minutes reading toady about a man who had to fight for 20 years to have what most Americans take for granted: http://en.wikipedia.org/wiki/Fang_Zheng.

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Jump Start Engines – part #5

Builders

In this part we look at the Camshaft Group 1100. You can refresh your thoughts on this by looking at the 2013 story I wrote about this group:

Getting Started in 2013, Part #3, The Camshaft Group (1100)

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The take away from that story is how the number system supports a wide array of choices available to builders, ranging from a reground cam  with a stock gear to a new cam with a fail safe billet gear installed for you.

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I have built and tested all of the options above, and they all work.  Which one should builders use? Well, any one that appeals to them after some reading to understand the differences. To amend this, let me share some of the additional things I have worked with in cams in the last few years.

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-The most popular cams in use in Corvairs remain the same Clark’s OT-10 (new and regrind) that we have been recommending for 15 years.

– I have built motors with and tested the California Corvairs CC-10 and it is a good quality cam and essentially the same output as the OT-10.

-I am having a run of cams ground to a pattern that we tested in 1997-98, based on a design done for me by the late Harvey Crane. The cam has a small advantage over an OT-10. The jump start engines will be built up with these cams. I had considered doing this before, but it took a while to find a US grinder who had the right experience and equipment and was OK with making cams for aircraft.

– I have worked with every Cam gear on the market, built engines around all of them, from the Clark’s basic gear through the $300 American Pi adjustable timing billet. I dislike the fact that the Clarks gears are likely Chinese products, but they do fit and work. The California Corvairs and Larry’s Billets are American made, but they are very tight fits on cams, and I do not recommend installing one at home. The California gear has a shallow key groove that requires the height of the key to be checked.

– Absolutely, under no circumstances, ever, hit a cam hear with a hammer to “finish install it”. This appears in Corvair car sites and is very poor advice. Cams are brittle, at the next College I will demonstrate how easy it is to crack or break one with a 16 oz. hammer.

-Here is a link to a seven and a half year old story from our main website: http://www.flycorvair.com/hangar1206a.html  Half way down, it is detailing how we put cam gears on. I note that I want the thrust washer on tight.  Below is a section from our webpage 14 moths later. When GM built your Corvair, it had a tight thrust washer. If you go on line, you can find a number of car people claim that they would prefer to have the washer loose. Although I can not pin point this as a failure issue, It is a good example of car people offering very poor advise.

If you press a cam gear on tight with an un-chamfered washer, the gear gets run out in it and is then junk.  It took many wrecked cam gears to spot why some Corvair parts sellers didn’t make the gear tight. It was the new washers made without the chamfer below that cause the gear not to sit properly if it was pressed all the way on. Their solution was to simply not put the gear on all the way and leave the washer loose. They had the washers fixed eventually, but in the last 24 months, this issue and un-chamfered washers have shown back up. There are pages of commentary on Corvair car sites about cam washer looseness, but not a single one of these notes anything about the root cause, the missing chamfer. Part of the reason why I am going to do a run of my own cams is because it is frustrating to solve this issue at my own expense years ago, but again see builders coming to colleges with cams with supplier installed gears that cost nearly $400 that again have loose washers.

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(Feb. 2008) “Technical News You Can Use
Above are two cam thrust washers for a Corvair. On the lathe, I’ve cut a slight bevel to provide clearance on the side of the washer that touches the cam. My research into building Corvair engines is continuous and ongoing. The unbeveled washer is an aftermarket part supplied by several of the Corvair parts houses. When pressing on a new cam gear, this will make the cam gear walk slightly out of square at the last moment. After years of installing countless cam gears without problem, we’d recently had trouble getting several of them to seat on their cams and hold tight their washers. Ignoring this problem, people selling cams with gears on had been leaving the washer loose as a really poor fix. It took a while to determine what was causing this issue, but a slight relief on the washer makes the difference.”

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Below, the Group 1100 chart from our webpage checklist:

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Cam group (1100)

1101- Cam

1102- Thrust washer

1103- Key

1104- Cam gear

1105- Hydraulic lifter set -12 total-

1106- Cam lubricant

1107- ZDDP oil additive

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Above, an engine being assembled at CC#22 in Texas. It is a Clarks Fail safe gear on an OT-10, and a Weseman Gen 1 bearing.  the dial indicator shows that the steel crankshaft hub that the Weseman bearing rides on is correctly installed. Barely visible are the three small Allen screws that are centered around the crank nub. By adjusting these screws and the tapered shims underneath them carefully, the steel crank hub can be zeroed to exact alignment with the crankshaft. This adjustment is not required on the Gen 2, as the bearing hub is installed on the crank in processing and ground concentric. The sole advantage of the Gen 1 is that it can be installed as a retrofit on a fully assembled engine. Most people building an engine with a 5th bearing from the start now opt for a Gen 2 bearing. More info at: http://flywithspa.com/fly5thbearingcom/5thbearingnewengine.html

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mmmmmmm