Ever seen an engine run before?

[SSNJim]

From the inside?

 

Very cool - a flathead engine with a glass head.

[peteski]

Cool!  I'm also surprised with how long the clear plastic (Lexan?) head lasted being burned by exploding fuel.

[Belugawrx]

Cool stuff thanks for sharing that

[426-Hemi]

Cool!  I'm also surprised with how long the clear plastic (Lexan?) head lasted being burned by exploding fuel.

That have to be Lexan, normal plexi-glass or Acrylic sheet even at that thickness wouldn't last long enough even in a Briggs engine! What really surprises me is the plug location, it fire better if it was more centered over the piston!

[espo]

You could see what looked like stress cracks starting to appear in the clear cover. I expected the "cylinder head" to come apart. Liked the slow motion the best.  

[unclescott58]

Fun!

Scott

 

[peteski]

That have to be Lexan, normal plexi-glass or Acrylic sheet even at that thickness wouldn't last long enough even in a Briggs engine! What really surprises me is the plug location, it fire better if it was more centered over the piston!

True, but I suspect that a center hole for the spark plug would have weakened the clear head.

[426-Hemi]

Pete,

Well Lexan is something else that for clear plastic sheet will stop a 44 magnum bullet at close range as well as a 357 shot at close range at only 1/2 inch thick, on a 4 foot by 4 foot section! That head on the Briggs engine? Looks to be more close to 1 inch thick (maybe even thicker!). AND its small. A lot smaller then the 48 inch by 48 inch section to stop a close range bullet from a 44 magnum or a 357..... I only know this as we used it for state building main office that I was a maintenance engineer 1 for. Was used as a protective barrier in the entrance of the main office only 1/2 inch thick! -Kinda like what ya see in a Bank.

The plug center in that clear head actually I do not believe have any effect on the strength of that Lexan head..... I do not believe that a Briggs engine plug fire has that much impact....

Whats really impressive I think, is the mere fact the firing of the gasoline and all didn't burn/charr the underside of the clear Lexan where we viewed it from!