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1962 18hp Evinrude- is the thermostat working?
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<blockquote data-quote="Pappy" data-source="post: 512563" data-attributes="member: 3278"><p><strong>Easy way to see if the thermostat is working is to lay your hand on the top of the cylinder head at idle. You should be able to hold your hand there no longer that 3-5 seconds before it gets uncomfortably hot. That should be around 135f or so. </strong></p><p><strong>The thermostat in this engine warms the powerhead at idle only and does not control the powerhead temperature throughout the RPM/load range. </strong></p><p><strong>The exhaust relief should show water flow very quickly as does a more modern overboard indicator or tell tale. They are not dependent on the thermostat opening to operate.</strong></p></blockquote><p></p>
[QUOTE="Pappy, post: 512563, member: 3278"] [B]Easy way to see if the thermostat is working is to lay your hand on the top of the cylinder head at idle. You should be able to hold your hand there no longer that 3-5 seconds before it gets uncomfortably hot. That should be around 135f or so. The thermostat in this engine warms the powerhead at idle only and does not control the powerhead temperature throughout the RPM/load range. The exhaust relief should show water flow very quickly as does a more modern overboard indicator or tell tale. They are not dependent on the thermostat opening to operate.[/B] [/QUOTE]
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1962 18hp Evinrude- is the thermostat working?
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