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Mercruiser 5.0 MPI allows waterback in cylinder after
Mercruiser 5.0 MPI allows waterback in cylinder after shutdown causing hydraulic lock!? … read more
Jason
Jason
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Vocational, Technical or Trade Scho
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4.3 MERCRUISER TBI PUT NEW MANIFOLDS ON ENGINE, STARTED
4.3 MERCRUISER TBI PUT NEW MANIFOLDS ON ENGINE, STARTED ENGINE DIDN'T LIKE SOUND ALSO NOTICED WATER LEAK FROM TORX PLUG ON TOP OF MANIFOLD ON CYLINDERS 1,3,5, SIDE. SECURED TORX PLUG PROBLEM WENT TO R… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I have a 1997 Searay 21ft. with a 5.7 mercruiser efi with an
I have a 1997 Searay 21ft. with a 5.7 mercruiser efi with an alpha 1 sterndrive. The block had a crack so we replaced the block with a new short block from the local speed shop in dallas and reinstall… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I just put my 89 Merc 350 in the slip and had a lot of smoke
I just put my 89 Merc 350 in the slip and had a lot of smoke coming out. I thought it was fogging oil, but it continued to smoke. Took it on a 1/4 mi run and engine started to load up and stalled. Got… read more
Jason
Jason
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I am looking at a 1986 30 weekender with twin 5.7 mercruisers
I am looking at a 1986 30 weekender with twin 5.7 mercruisers with 1100 hrs. The starboard engine seems to have a white smoke or steam exiting the exhaust and dissipating quickly when a few feet after… read more
Tan
Tan
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Certified Marine Technician
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My 2006 sea ray 205 with mercruiser 5.0 L started billowing
My 2006 sea ray 205 with mercruiser 5.0 L started billowing black/brown smoke. we put it out with the fire extinsguser. There was no fire just smoke adn there is some green fluid that leaked out on th… read more
Jason
Jason
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My mechanic crossed the hoses on my raw water pump on my 7.4gi.
My mechanic crossed the hoses on my raw water pump on my 7.4gi. resulting in a cracked exhaust manifold and a lot of water in the oil. The engine has been repaired and the oil removed by pumping throu… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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There is some white smoke coming from the starboard exhaust
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Tan
Tan
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2003 Mercruiser 3.0L 130HP Sterndrive system on Searay 176SRX
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Noel Schembri
Noel Schembri
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my boat is giving off a popping noise. i changed the fuel/water
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James
James
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Vocational, Technical or Trade Scho
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I have a 1988 searay seville mercruiser 4cyl 3.0 130 hp found
I have a 1988 searay seville mercruiser 4cyl 3.0 130 hp found water in the oil changed it 4 times same milky oil i then took of the exsaust manifold my question is there was 6 or 7 ports four were ful… read more
James
James
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Vocational, Technical or Trade Scho
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HI, ON MY 1997 SEARAY 5.7 MERCRUISER, I RECENTLY REPLACED BOTH
HI, ON MY 1997 SEARAY 5.7 MERCRUISER, I RECENTLY REPLACED BOTH MANIFOLDS. IT WAS DUE TO THE STARBOARD MANIFOLD GOT CLOGGED AND ALL THE RUBBER HOSES MELTED VERY SERVERLY. AS OF NOW ALL THAT IS REPLACED… read more
Jeremy R.
Jeremy R.
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got an 89 23ft searay 7.4 mercruiser and out of the blue after
got an 89 23ft searay 7.4 mercruiser and out of the blue after 6 times in the water was going down lake and engine filled with water. needless to say ruined. this question.? found piston loose from ro… read more
Jeremy R.
Jeremy R.
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Had a remanufactured long block 5.7 Mercruser 350 MAG with
Had a remanufactured long block 5.7 Mercruser 350 MAG with 270 HP installed in a 23 Bowrider (replacing a 7.4 Mercruiser engine). When we test drove it made a funny smell and the mechanic looked at it… read more
Master Tech
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Hello i have a 1997 br210 searay with a 5.7 efi. it runs
Hello i have a 1997 br210 searay with a 5.7 efi. it runs great. but will not start after it is hot. it acts like a vapor lock not getting fuel. is this a common problem ? an is ther a fix? Customer… read more
gearheadII
gearheadII
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Hello. 1997 Reinell with a 5.7 L V8, a Volvo Penta . Owned
Hello. 1997 Reinell with a 5.7 L V8, a Volvo Penta . Owned 8 yrs. Its been running great, although after 2 great trips on the water this season I had some starting problems. Trip 5 after several hours… read more
gearheadII
gearheadII
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Hi, I have a 1997 searay 23 bowrider with a 5.7 L engine.
Hi, I have a 1997 searay 23' bowrider with a 5.7 L engine. It is popping thru the carb and very little power. Compression very low in 2 cyls. should I have valve job or put rebuilt engine in? Boat is … read more
Mike of Pompano Beach
Mike of Pompano Beach
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I have mercruiser 5.7 LX (1995 SeaRay 250) 1000 hours. Two
I have mercruiser 5.7 LX (1995 SeaRay 250) 1000 hours. Two years ago at 900 hours manifolds and risers were replaced. Initially the engine run OK but soon developed a 'lumpy' feel....my thoughts were … read more
Captain Dave
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Jeff G.

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Captain Dave

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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