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Hot!Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss.

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bdc145@gmail.com
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2019/03/18 14:09:00 (permalink)
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Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss.

I have a Husqvarna EZ 5224. The hydro belt burned up. So I disconnect the battery and commence replacing the belt and seized idler pulley. When everything is fully reassembled, the mower doesn't start. Now replacing the belt happened slowly over 2 months. But it started and ran before I replaced the belt.
 
When I start it, the starter engages the flywheel, and clicks repeatedly. It will not spin the flywheel or turn the engine over.
 
So I charge the battery. It reads 14+ volts. Same.
 
I test the voltage at the solenoid. Also 14+ volts. I bypass the solenoid. Same clicking with the starter.
 
I measure the voltage at the starter. 11.6v. So a good bit of loss. Is this enough to not engage the starter? Or does the clicking signify the starter's clutch slipping? Should I just replace the starter and solenoid? Should I replace the battery wiring because of the voltage loss?
 
Thanks,

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    AVB
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/18 14:35:39 (permalink)
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    First the 14+ is surface charge the battery actually only produces under 13 vdc max. Most starters will work down to 10-10.5 volts. Note: the starter will be pulling 70+ amps and even more when in a bind.
     
    Pulled both spark plugs and test start the engine. It should freely turn the engine and if hydrolocked blow out the excess fuel. Replace both plugs and try again. If it starts hanging up again then check the valve clearances as the ACR may not be decompressing the engine enough to allow the starter to start the engine.
     
    As for testing voltage drops don't forget to test the ground side IE the engine to battery negative post. It should be near zero between the two points.
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/18 19:58:51 (permalink)
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    Ok so I pulled the spark plugs. No luck. The engine has not seized. I can spin the flywheel and engine over freely by hand. 
     
    I've never heard this clicking before when dealing with battery issues. The clicking is the starter trying to spin the flywheel. But nothing turns. And when I bypass the solenoid, I get the same thing.
     
    Maybe I can post a video of it tomorrow.
     
    Starter gone bad?
    post edited by bdc145@gmail.com - 2019/03/18 21:04:35
    AVB
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/19 08:54:08 (permalink)
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    First will the starter turn the engine through with the plugs out? If so did you check the valve clearances and verify that ACR is doing its bumping of the intake valve?
     
    If the starter will not turn the engine through with the plugs out then replace the starter and you may even need to replace the solenoid as it may be damage too.
    bdc145@gmail.com
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/19 09:53:26 (permalink)
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    No the starter will not turn the engine through with the plugs out. I can spin the engine by hand with the plugs out.
     
    How would I check the valve clearances? And what failing would cause this to change?
     
    I'm going to replace the starter. Thanks for your help.
     
    Here's a video: 
    www.vimeo.com/325100877  
    post edited by bdc145@gmail.com - 2019/03/20 16:08:55
    AVB
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/19 10:38:13 (permalink)
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    Valve clearance change is part of normal wear. Seldom means that anything major wrong; unless, the overall lift changes by a considerable amount or a valve guide moves and cause a belt push rod.
     
    On OHV engines you set the valves by placing each cylinder at 1/4" pass TDC compression. This is where both valves are fully closed. The clearance are .003-.005 IN and .005-.007 EX through a few models are at .004 IN and .006 EX.
    Basically with this technique just one cylinder and then the other.
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/19 14:16:39 (permalink)
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    Yeah looking at the video, I would rebuild or replace starter.
    bdc145@gmail.com
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    Re: Husqvarna EZ 5224 Not starting, solenoid vs starter, or electrical loss. 2019/03/20 16:07:00 (permalink)
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    Thanks guys. I've purchased a solenoid and starter. I'll replace them this weekend and let you know what happens.
     
     
     
     
     
     
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