Generac Pressure Washer loaded on start...?

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  #1  
Old 03-23-16, 05:49 PM
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Generac Pressure Washer loaded on start...?

I have done so few with this problem that I have never dug into the pump very deep, so looking for some advice.
The unit act like the pump is trying to pressurize when starting, IE: you can barely pull the starter rope and maybe get one turn on it.
IIRC, I have in the past been able to hook up a hose and wand and with the wand released, get it to start and exercise it until it worked properly again.

Thought I would plug it in here before I head off to google....

Az
 
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Old 03-23-16, 06:11 PM
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Found this thread posted going on 6 yrs ago. Similar problem and no answer in that thread. I don't think the problem is the engine, but the pump.
http://www.doityourself.com/forum/ou...cord-pull.html
 
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Old 03-23-16, 07:19 PM
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There was a resolution in that thread you posted. That thread has two pages. The resolution was a broken compression release mechanism.

I have a water shutoff valve on the fresh water supply to my pressure washer. I start the engine with the water turned off and as soon as the engine starts I turn it on. I had tried to hold the wand open but that didn't release enough pressure for an easy start.
 
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Old 03-24-16, 12:41 AM
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The unloader valve is sticking. Sometimes you can take it apart and clean it, lube it with some silicone.
 
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Old 03-24-16, 03:47 PM
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Pulled the unloader vavle, and same same, pulled the pump off and still no love.
Pulled the valve cover off and there lay the rocker arm, pin, e-clip from the exhaust valve pushrod. Reinstalled and set clearance and Sweeet sound of success
 
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Old 03-24-16, 05:53 PM
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Ok, that would sure make it hard to crank, but that would be with water or no water. Cycling the trigger a few times to get it working properly again would be the unloader valve for sure. Maybe you fixed that problem too now that you took it out!
 
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Old 03-25-16, 05:16 AM
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I never even had the wand to try with water on this unit. We haven't turned on the water to our wash rack yet either due to possible hard freeze still. (which we have had two nights in the past week)
Hopefully the pump side has no issues or I will be seeing it again.
 
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