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  #1  
Old 07-13-2012, 11:24 AM
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tc1234c tc1234c is offline
 
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Default Engine valve video made using cheap dental cam

After reading Erich Weaver's report on cheap Chinese made dental cam I brought one and modified it. This morning after oil change I inserted the camera through lower spark plug holes and recorded video of valves. Since I held the camera in one hand and turned propeller using the other at times images were shaking. I don't have experience on engine thus can not tell if my valves are fine. If you see any problem please let me know.

Erich's report:

http://www.vansairforce.com/communit...ad.php?t=83011

My video:

http://youtu.be/Dq0H_yqSuGw
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  #2  
Old 07-13-2012, 12:42 PM
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I have to say...that's pretty cool...
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  #3  
Old 07-13-2012, 01:16 PM
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Way to go Ted!
The color pattern on your exhaust valves looks nice and symmetrical, which is what you want.
Which camera did you go with? I'm guessing you cut the camera case at the neck to make it smaller and used some heat shrink tubing to hold it together?

Erich
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Old 07-13-2012, 01:20 PM
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Quote:
Originally Posted by erich weaver View Post
Way to go Ted!
Which camera did you go with? I'm guessing you cut the camera case at the neck to make it smaller and used some heat shrink tubing to hold it together?

Erich
Erich,

I got ORC-03B that is the same as yours, I belive. Yes, I cut the case using a hand saw. It quite easy to do. I don't have big heat shrink so I just used tape. It works well. Thanks for sharing the information.

Ted
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Last edited by tc1234c : 07-16-2012 at 10:11 AM.
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  #5  
Old 07-13-2012, 01:39 PM
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Quote:
Originally Posted by tc1234c View Post
Hey! How did you get that little tiny man into that little tiny hole? He sure is looking down his nose at the camera. Or maybe he is just "thumbing his nose" at the camera.
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Old 07-13-2012, 02:11 PM
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Hey! How did you get that little tiny man into that little tiny hole? He sure is looking down his nose at the camera. Or maybe he is just "thumbing his nose" at the camera.
I have auto plugs on top. If not, the tiny man would be able to get through the hole.
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Old 07-13-2012, 02:37 PM
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Why were the valves replaced at 330 or something hours?
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Old 07-13-2012, 02:43 PM
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Why were the valves replaced at 330 or something hours?
My cylinders were on the ECi cylinder head rework SB list. They could not rework them so they sent me four new ones instead.
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  #9  
Old 07-16-2012, 06:55 AM
novipilot novipilot is offline
 
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Read some of Mike Busch's columns. He's a regular contributor to Sport Aviation. Also has a web site, SavvyAviator or something like that. I once read that if you have symmetry, which your valves look like, then you'll typically go another 100 hours without valve failure.

The video from this camera looks pretty good. Maybe we could get a group buy on the cams.
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Old 07-16-2012, 09:10 AM
chaskuss chaskuss is offline
 
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Quote:
Originally Posted by tc1234c View Post
Erich,

I got OC-03B that is the same as yours, I believe. Yes, I cut the case using a hand saw. It quite easy to do. I don't have big heat shrink so I just used tape. It works well. Thanks for sharing the information.

Ted
Ted,
I just did a Google search on OC-03B dental camera and came up with nothing. I did find a listing for a ZD-03 [linked below].

http://factory.dhgate.com/dental-equ...p36909791.html

Could you please supply who manufactures this thing and perhaps a photo or link of it?
Charlie
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