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Briggs & Stratton got real hot!

thinktankstudio's Avatar

Join Date: May 2009
Posts: 1

05-12-09, 09:27 AM   #1  
Briggs & Stratton got real hot!

I'm helping a friend attemp to fix his SCOTTS Rider Mower. It has a 20HP Briggs & Stratton Intek V-Twin OHV engine in it. Well Supposedly it was running fine and then it was loosing power and smoking. There is definitely an oil leak and when I checked it it was LOW and smelled like spray paint. I wanna check compression but I have no specs. There is melted plastic all over so this thing got real hot. I assuming because of possilby running lean. Any info would help.

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puey61's Avatar

Join Date: Apr 2004
Posts: 3,224

05-12-09, 09:56 AM   #2  
Either one or both of the head gaskets has blown between the valve chamber and the cylinder and it's therefore migrating oil into the combustion chamber, or, your carburetor is dumping fuel into the crankcase, hence the smell of spray paint (gasoline mixed with oil).

bontai Joe's Avatar

Join Date: Apr 2004
Posts: 592

05-12-09, 10:22 AM   #3  
Have you pulled any of the metal shrouding off around the motor to see if it's packed with grass clipings? Be sure to replace the shrouds when done cleaning as they direct the cooling air around the motor. Mice LOVE to build nests in there, and that can hold in LOTS of heat.

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