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25 hp Briggs Vtwin, hard to find oil leak

12 years ago

Hey guys, my 25 hp Briggs has sprung another leak. The oil is running down from the left cylinder onto the exhaust pipe. It has a new head gasket on that side and is torked to spec. I also replaced the valve cover gasket.

Normally wouldn't this leak be cause by one of those two, or the sump gasket?

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Comments (2)

rcmoser
12 years ago
Another place to look on some V-Twins would be the breather valve. Usually located behind the carb. in the valley of the cylinder heads. This is usually held on by one bolt in the center of it. It has seal on the bolt head and at the engine block can work loose and dribble oil. I would also suspect the valve cover if the engine has low time, but out side change it could be the breather valve if it was under torqued at the factory?
rcmoser
12 years ago
other have posted the sump gasket blows and cause this leak also. might want to check there around that side.
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