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Old 11-24-2011 | 12:54 AM
  #55  
choihjin
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From: Daegu, SOUTH KOREA
Default RE: OS 33GT Gasoline Engine for Pattern

Here is my interesting story on OS GT33.
I got Hyde mount for GT33, which ordered one week ago. I got it today in Korea. Mr. Hyde mailed it to me via express air mail with his expenses to satisfy my anxiety.
Thank you, Merle. OS GT 33 was mounted on the Hyde mount to test the difference. Everything is set as previousely I have done for breakin on the test bed except Hyde mount.
Oh, no, I could not start the engine, which runned very nicely. We bought actually two OS GT 33 one for my friend's Rock&Roll, one for my Smaragd.
I have already posted a GT33's starange thing happened on Rock&Roll. But Mine was fine. Suddenly many thoughts in my head from MATT K's engine failure.
Several back fires, but still I could not start engine. But strangly the prop position was a little bit way off from original starting point. Ah, then the prop was moving, not tightly joined?
I took out the prop and I see someting strange. The woodruff key was scattered off and just about one third was found in the hole.
Thing is clear now, why it could not be started. In the late afternoon in the field, I found a piece of washer, and managed to make to fit in the key hole.
The engine starts nicely, but with little less high speed around 7000 RPM, previousely 7500 RPM on break-in. Probably timing is a little off.
I need new woodruf key. Where can I find it?
Is it due to my fault mounting prop or backfire or too weak for big prop or high torque?
Take care