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Old 12-06-2019, 06:50   #16
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Join Date: May 2018
Location: Quebec near Labrador
Boat: Mirage,schmit,27'
Posts: 28
Re: Yanmar 1GM

I cannot retrace where I read that if the engine does not start, cooling water could accumulate and when the engine would run a damage (gasket) would blow.Is this the head gasket?
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Old 12-06-2019, 16:57   #17
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Join Date: Sep 2014
Location: Auckland, NZ
Boat: Compass 790 , 7.9 metres or 26 ft
Posts: 863
Re: Yanmar 1GM

Quote:
Originally Posted by copaco View Post
I cannot retrace where I read that if the engine does not start, cooling water could accumulate and when the engine would run a damage (gasket) would blow.Is this the head gasket?
it COULD blow head gasket if water can back up enough to go down exhaust valve.
I see you said you need an exhaust elbow. My advice is to buy or make a stainless steel one. Google exhaustelbow.com if you are in the USA & want to buy. The Yanmar cast iron ones are not good & waaay overpriced.
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Old 13-06-2019, 12:30   #18
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Re: Yanmar 1GM

On thé ´´throtel’´ there is also a very small screw facing aft.I presume that it is for final ajustement of idle?
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