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Old 09-28-2012, 09:39 AM
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Blazkowiez Blazkowiez is offline
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Yes, you are 100% correct. The information is there for people who want, need, and know how to use it. You have done a fine job with pictures and explanation.

Originally Posted by toystory_4wd View Post
I would like to know of the mitigating circumstances involved in "losing compression from over revving". Sounds a bit fishy to me...
Overhead valve Tecumseh engines and newer Intek Briggs engines have plastic cams. Over revving and heat will actually wear the lobes of the cam down. End result = compression loss.

Though they were being cheap when they made the engines this way I consider it a grace for most users. Older Tecumseh flathead engines would simply pop a chunk through the front of the block when those popped.

Here is a visual example of said popping. I took this picture a few years back.

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