Quote:
Originally Posted by Tassie f100
What does it achieve anyway?
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Two fifths of f-all.
On a mower anyway. In some applications where the engine has to fit a certain space, having one of these to direct the exhaust gas is desirable to prevent blasting carbon all over the machine. These engines power everything from a mower to pressure washers, small ride-on mowers, log splitters ect, so this part allows Briggs to tailor the engine without producing a separate muffler for each machine.
You will see that on some very old mowers which had the engine positioned with the muffler facing the operator, the exhaust plasters the rear of the mower deck with black carbon. Same reason why most diesel cars have exhaust tips facing down to stop staining the rear bumper (hello Hyundai Santa Fe).