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    sims21's Avatar
    sims21 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jul 13, 2010, 09:21 AM
    Vavle adjustemt on brigg and stration motors 17.5
    How do I adjust vavles on a troy built riding mower with 17.5 hp. Briggs stration
    sims21's Avatar
    sims21 Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Jul 13, 2010, 09:26 AM
    Vavle adjustemt on brigg and stration motors 17.5
    How do I adjust vavles on 17.5 hp. Briggs stration motor
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #3

    Jul 13, 2010, 09:26 AM

    Hi,
    Try the repair video on YouTube at:
    YouTube - Lawn Mower Repair Valve Adjustment
    Peace,
    Clarke
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #4

    Jul 13, 2010, 09:31 AM

    You'ss need the specs for your engine.

    Typical specs are 0.004" E&I 1/4 after TDC.

    Positioning the pistion can be done with a dial indicator and knowing the intake, compression, (TDC), power, exhaust, (tdc) valve positions.

    You want after the TDC position, not the tdc position.

    Loosen locknuts on lifters. Adjust so you can pass a feeler gauge. Lock. And check again. Check with sizes above and below 0.004.
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