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I have a 1998 Bayliner with a 3 L MerCruiser inboard. Water
Second opinion] I have a 1998 Bayliner with a 3 L MerCruiser inboard. Water is getting into the Engine oil someplace. Any ideas? … read more
AntonioC93
AntonioC93
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how to bench test Merc riser ell 865331A02 for leaks … read more
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1989 SeaRay 340, 454 Mercruisers, white exhaust on port
1989 SeaRay 340, 454 Mercruisers, white exhaust on port engine. … read more
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How do I check engine temp on a mercruiser 350 horizon
How do I check engine temp on a mercruiser 350 horizon that's blowing steam from port side exhaust … read more
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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
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Installed new mercruiser 2000 mpi horizon mei 5.7 300 hp
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Ted G.
Ted G.
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we are getting the sea ray 87 weekender need to know the spec
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Tan
Tan
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I have twin Mercruiser 8.1 Horizons on a 2004 Searay 360 DA.
I have twin Mercruiser 8.1 Horizons on a 2004 Searay 360 DA. I am having problems with a low oil pressure on my strb engine. At idle with a new oil filter and oil, the pressure at panel is around 50 p… read more
Ted G.
Ted G.
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Im considering a 1999 Sea Ray w 7 4 Mercruiser V Drives.
I'm considering a 1999 Sea Ray w 7>4 Mercruiser V Drives. I've heard that they had problems witht he 1999-2002 engines....something about the risers not working and causing damage to the middle two… read more
James
James
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i hav a searay with 4.3 mercruiser alpha motor. when i go
i hav a searay with 4.3 mercruiser alpha motor. when i go on the water the motor starts fine, after i shut off the boat in the water i have problem starting it. the starter strugles because i noticed … read more
James
James
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I have a 2005 bayliner with mercruiser 3.0 inboard/outboard.
I have a 2005 bayliner with mercruiser 3.0 inboard/outboard. Had it checked and mechanic said the manifold was leaking. He also did a compression check and said two cylinders where running high. He is… read more
Tan
Tan
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I have twin 8.1S mercruiser engines. My manifolds are starting
I have twin 8.1S mercruiser engines. My manifolds are starting to show corrosion. I read that mercruiser is backing all engines with aluminum manifolds. Is this true? I was also told by a mercruiser m… read more
Tan
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I have a 2002 350 Horizon MPI (Self contained), it recently
I have a 2002 350 Horizon MPI (Self contained), it recently hydo-locked (fresh water) thought it was abad starter and then realized the motor was seized pulled the plugs and equal amounts of water in … read more
Jeremy R.
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I have a 2000 Searay380 AC with 7.4 Mercruiser Horizons with
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hi. I am looking at a boat at my marina which is for sale that
hi. I am looking at a boat at my marina which is for sale that has a new set of Mercruiser re-man 7.4L 380 Horizon engines. I have heard from various sources that Merc. had problems with their sub-con… read more
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have a rebuild 454 mercruiser that stalls out everytime the
have a rebuild 454 mercruiser that stalls out everytime the rpms go below 2000 change out the injectors,electronics,fuel pump, fuel filters,checked timing. had three different mercruiser mechanics loo… read more
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Hi I have a 2004 Searay Sundancer with twin 8.1 Horizon motors.
Hi I have a 2004 Searay Sundancer with twin 8.1 Horizon motors. The boat has 142 hours on it and I want to know how you can tell if the engines need exhaust manifolds. I have been told that they last … read more
ROCKET
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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
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Meet the Experts:

Ted G.

Ted G.

Marine Mechanic

4,115 satisfied customers

40 years experience, Safe boating instruct., Failure Analysis, Expert Witness

Dominick

Dominick

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1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

John White

John White

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11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

24,123 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,409 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Noel Schembri

Noel Schembri

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3,038 satisfied customers

Advanced technical diploma

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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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