merc 470 thermostat location?

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rustypenny

Cadet
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Jul 6, 2009
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I have an '82 merccruiser 470. The temp gauge doesn't move and I've blown 2 coolant hoses. First, the hose from intake to exhaust blew. Replaced it. Next day the hose from intake to waterpump blew. Could this be caused by a bad thermostat? Where do I find the thermostat?

Thanks!!
 

abj87

Petty Officer 1st Class
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Aug 4, 2008
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354
Re: merc 470 thermostat location?

check your pressure cap should be 14 lbs.
the thermostat is under the front of the exhaust manifold.
 

TheSeasLife

Petty Officer 2nd Class
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Aug 23, 2009
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102
Re: merc 470 thermostat location?

same problem here 1 week ago. Do I have to drain coolant to take out Thermostat since it is under manifold?
 
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