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I HAVE A MERCRUISER 350 MAG THE ENGINE TEMPERTURE GOES FROM
I HAVE A MERCRUISER 350 MAG THE ENGINE TEMPERTURE GOES FROM 100 TO 250 IN 15 MIN THEN ALARM GOES OFF . I KEPT BOAT IN A FLUSING MODE FOR 20 MIN WITH WATER RUNNING AND ALARM DID NOT GO OFF … read more
Jason
Jason
Marine Mechanic
18,623 satisfied customers
Is your service free of charge? Which page? I have a fairly
I have a fairly new boat. The engine has antifreeze int he cooling system , but I assume raw water for the exhaust cooling. … read more
Jason
Jason
Marine Mechanic
18,623 satisfied customers
After a oil change the engines top out at 2500 rpm under
After a oil change the engines top out at 2500 rpm under load. In neutral they easily go up to 4000 They engines have been checked On computer & are fine. Have been told a low oil sensor could cause p… read more
Jason
Jason
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18,623 satisfied customers
Looking at a quick overview to illustrate the difference
Hi Pearl, looking at a quick overview to illustrate the difference between the Mercruiser 5.7L 350 Magnum/ Bravo 1 Drive and the Mercruiser 5.0MPI/Alpha 1 Drive … read more
Jason
Jason
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18,623 satisfied customers
Where and how do I change spark plugs in my 2003 doral 30 ft.
Where and how do I change spark plugs in my 2003 doral 30 ft. It has 2 mercruiser 350 mags 300 horsepower bravo outdrives… read more
Ted G.
Ted G.
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Vocational, Technical or Trade Scho
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Hi, I am in australia, I have bought a 28ft Bertram 1987, the
Hi, I am in australia, I have bought a 28ft Bertram 1987, the current engines are GM 305 260hp carbie inboard shaft drives with counter rotation. The engines are unservicable, Compression loss, Starte… read more
Jason
Jason
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18,623 satisfied customers
How can I purge the fuel system/tank so that I can remove any
How can I purge the fuel system/tank so that I can remove any remaining water? Can I re-use a fuel filter that may have had water in it, if it is emptied and dried? I have a 2000 mercruiser 350 MAG MP… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
i have a mercruiser 350 mag mpi. i revved the engine loading
i have a mercruiser 350 mag mpi. i revved the engine loading on to trailer out of water. next day i put it in, now the engine is running hot. seemes no water is being picked up.. i checked under the b… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Hello... I have a mercruiser 350 mag i/o. Today was my third
Hello... I have a mercruiser 350 mag i/o. Today was my third run of the season. Each time my starting hesitated. It took a bit and stalled a few times upon start, but then ran great. (a new starter wa… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
i have 22 foot lime stone and want 300 HP , i am considering
i have 22 foot lime stone and want 300 HP , i am considering switching from in board to out board, any comments, please provide quote for engines in and out.… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have Twin 2005 MerCruiser 350 Mag Bravo Engines and am wondering
I have Twin 2005 MerCruiser 350 Mag Bravo Engines and am wondering how difficult it would be to replace the impellers? Thank You… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Chevrolet 350 Cu inch marie engine inboard / outboard - overheat
Chevrolet 350 Cu inch marie engine inboard / outboard - overheat horn comes on when started, goes off when underway, temp gauge does not go too high. where are intakes to check cleanliness? how to che… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a tri-toon 26ft pontoon boat with a mercruiser 350 mag
I have a tri-toon 26ft pontoon boat with a mercruiser 350 mag I/O. When the engine runs any faster than 1800 rpms a sensor of some sort cuts the engine and sets off a horn indicating that the engine i… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
1996 Donzi with a 350 Mercruiser I/O. I picked up this boat
1996 Donzi with a 350 Mercruiser I/O. I picked up this boat at a reasonable price, but it needed some help. I have been trying to troubleshoot an overheating issue. I have replaced the risers and had … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Why would you drop 6 to 8 miles per hour after replaceing the
Why would you drop 6 to 8 miles per hour after replaceing the seales in the out drive? Have a 26' Formula Bow Rider with 405 Engin.… read more
capt ron 1959
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
I am trying to replace my impellar on a 350mag Mercruiser engine.
I am trying to replace my impellar on a 350mag Mercruiser engine. I haven't replaced it since I bought the boat in 2005. My question is, do I need to replace it and where is it? Is it behind the recir… read more
mercmastertech
mercmastertech
Service Manager, Master technician
Technical School
249 satisfied customers
I have a brvo 2 1999. i change the water pump on the 350 mag.
I have a brvo 2 1999. i change the water pump on the 350 mag. the boat is still over heating. how do you change the pump in the bravo 2.… read more
mercmastertech
mercmastertech
Service Manager, Master technician
Technical School
249 satisfied customers
my 2002 mercruiser 350 mag alarm sounds near top rpm-4600-5000
my 2002 mercruiser 350 mag alarm sounds near top rpm-4600-5000 ,about 4700 she goes off,cuts engine power,then o.k. again till 4700. at dock,can bring it up to rev limiter,5200,before she cuts out. ju… read more
Mechman45
Mechman45
Vocational, Technical or Trade School
152 satisfied customers
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

Ted G.

Ted G.

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704 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

18,623 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,264 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,729 satisfied customers

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

Captain Dave

Captain Dave

Marine Mechanic

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USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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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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