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Pressure Washer Issue
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<blockquote data-quote="Forgalspop" data-source="post: 4128689" data-attributes="member: 46636"><p>I have a Simpson pressure washer that is about 12 years old and yesterday it developed an issue. I tried to start the engine (Honda) and the rope about took my arm off with kicking back so hard. I tried to start a couple times and had the same issue. </p><p></p><p>I thought at first a valve was stuck in the pump unit creating too much back pressure.</p><p></p><p>After removing the spark plug and pulling the starter rope the engine turned over freely, which told me the pump did not have a stuck valve. So I came to the conclusion the exhaust valve must be out of adjustment. </p><p></p><p><strong>As a side note</strong>: I washed my wife's car a few days ago and the pressure washer ran and operated fine.</p><p></p><p>So I took off the valve cover and saw that the exhaust valve rocker arm was not even activating the exhaust valve. ( a huge gap between adjustment screw and valve assembly). So I go hmmm this is strange. I remove the pin that holds the rocker arm in place and find that the rocker arm has a stress fracture and is bent out of shape.</p><p></p><p>Going on YouTube I found several videos addressing this issue. Seems it is a fairly common issue with this particular Honda engine model. (GCV160)</p><p></p><p>See pictures below. </p><p></p><p>So if you have a Honda small engine with similar issue, you might first check the exhaust valve rocker arm.</p><p></p><p>I have new one on order from Amazon and it is supposed to arrive tomorrow.</p></blockquote><p></p>
[QUOTE="Forgalspop, post: 4128689, member: 46636"] I have a Simpson pressure washer that is about 12 years old and yesterday it developed an issue. I tried to start the engine (Honda) and the rope about took my arm off with kicking back so hard. I tried to start a couple times and had the same issue. I thought at first a valve was stuck in the pump unit creating too much back pressure. After removing the spark plug and pulling the starter rope the engine turned over freely, which told me the pump did not have a stuck valve. So I came to the conclusion the exhaust valve must be out of adjustment. [B]As a side note[/B]: I washed my wife's car a few days ago and the pressure washer ran and operated fine. So I took off the valve cover and saw that the exhaust valve rocker arm was not even activating the exhaust valve. ( a huge gap between adjustment screw and valve assembly). So I go hmmm this is strange. I remove the pin that holds the rocker arm in place and find that the rocker arm has a stress fracture and is bent out of shape. Going on YouTube I found several videos addressing this issue. Seems it is a fairly common issue with this particular Honda engine model. (GCV160) See pictures below. So if you have a Honda small engine with similar issue, you might first check the exhaust valve rocker arm. I have new one on order from Amazon and it is supposed to arrive tomorrow. [/QUOTE]
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