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CATEGORY LISTINGS > FORD DIESEL > Twin ford 80hp marine diesels, one running too cold [ REFRESH ]
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Twin ford 80hp marine diesels, one running too cold


Created On Friday November 23, 2007 09:00 Diesel Talk
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gearlocker
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Note Friday November 23, 2007 09:00 View thread in raw text format
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We have twin Ford 80HP motors that have recently been serviced with new filters etc, since then the port motor has been stopping after 30 mins running time and being difficult to start. We had the mechanic check the new filters and we may have a problem there with the bungs.

In addition to that, we took the boat off the marina the other day and the starboard engine came up to temp 180F within 20 minutes, but the port motor despite the fact the water seemed to be circulating properly was only running around 120F and did not want to increase. I checked the motors by hand touch and this confirmed the temperature difference. Any experiences of this cold running and what may be causing it?

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gearlocker
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GoneFishen
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Joined: Jan 2007

Note Saturday November 24, 2007 20:31 View thread in raw text format
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Not familiar with the marine engines but usually if the engine is running cold as you confirmed it most likely has a stuck open thermostat. Since you have them out, maybe a gneral inspection is in order. Replace any questionable hoses, also replace BOTH thermostats on the engines. You need the engines to operate when needed. Not have 1 operating and you upset because of a 0.35 'O' ring and $25 dollar thermostat.

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