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    rcacka46's Avatar
    rcacka46 Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Feb 11, 2008, 07:29 PM
    B&S 15 HP mower engine
    Hi all, I was given a Bolens riding mower with a 15 HP Briggs engine on it, the mower had been sitting a while outdoors so I changed the oil, the fuel filter, and cleaned the carb and replaced the battery, when I started it up it would run and then stop and run and then stop. Then it ran for 10 minutes but was blowing white smoke and oil out the exhaust. I think I have blow by but not sure so I am asking the question would I have to rebuild the engine?
    Robert
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Feb 12, 2008, 11:02 AM
    You may have a stuck valve that isn't closing completely. Can you do a compression check?
    rcacka46's Avatar
    rcacka46 Posts: 4, Reputation: 1
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    #3

    Feb 15, 2008, 04:59 PM
    It is getting compression, if it is a valve, does anybody have the torque specs for the valves?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Feb 17, 2008, 09:48 AM
    Torque specs or gap? I torque a head but gap a valve.
    MOWERMAN2468's Avatar
    MOWERMAN2468 Posts: 3,214, Reputation: 243
    Ultra Member
    		  
    #5

    Feb 17, 2008, 04:18 PM
    Are you by chance getting oil in the air cleaner housing, if so, replace the breather assembly.
    rcacka46's Avatar
    rcacka46 Posts: 4, Reputation: 1
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    #6

    Feb 17, 2008, 04:20 PM
    The gap for the valve and then the torque specs for the head bolts since I need to remove the head to clean the valves and reinstall it.
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