oil coming from breather


Old 06-08-07, 12:59 PM
Thread Starter
Join Date: Jun 2007
Posts: 3
oil coming from breather

I did a tune up on my Murray mower,Model 287707 B&S 14.5 hp engine.

When I Started it up oil came out of the breather hose.

Can anyone tell me what the problem might be.


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Old 06-08-07, 07:10 PM
puey61's Avatar
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
Overfilled crankcase (oil); Fuel dumping into the crankcase and "overfilling" the crankcase; Incorrect viscosity oil; Inverted crankcase breather assembly; Air leak at the crankcase; Or, operating at extreme angle.

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