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Mercruiser 4.3 overheating on my boat I already changed
Mercruiser 4.3 overheating on my boat I already changed impeller on the outdrive, the thermostat and the risers have been changed still overeating...… read more
Boat Doc
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I have a 2008 mercruiser and a bravo 3 outdrive last year we
I have a 2008 mercruiser and a bravo 3 outdrive last year we hit something in the water with the outdrive. It did not seem to hurt it at the time so now I pulled the boat out of the water to have the … read more
Tan
Tan
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I bought a 10 yr old Searay with a 6.2 Bravo (OM693500 MCM
I bought a 10 yr old Searay with a 6.2 Bravo (OM693500 MCM MX MPI) and found there is a seawater cooling problem. The alarm went off and figured it was the impeller. This was a time consumming job wit… read more
Tan
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I have a 2010 Mercriser 350mag Seacore engine with the engine
I have a 2010 Mercriser 350mag Seacore engine with the engine mounted flush port and bravo III seacore outdrive - I am unclear about the instructions about using the engine mounted flush port - Do I n… read more
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I need to replace the impellar on my seawater system for my
I need to replace the impellar on my seawater system for my 5.0 Ltr mercury Is there any diagrams showing how? How do you take off serpentine belt?… read more
Noel Schembri
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I have a 06 mercruiser/alpha with a closed cooled system went
I have a 06 mercruiser/alpha with a closed cooled system went to run it after 2 weeks and it overheated no water to the heat exchanger the pump on the sterndrive is working the impeller on the engine … read more
James
James
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Vocational, Technical or Trade Scho
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omc 2.5 1987 Cobra outdrive, sterndrive water pump new, no
omc 2.5 1987 Cobra outdrive, sterndrive water pump new, no water blockage to pump, in the lake with total outdrive under water, stenndrive water pump pumps air, won't pump water.?????????????… read more
Jason
Jason
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I have and alpha 1 Mercruiser. I see crank raw water pumps
I have and alpha 1 Mercruiser. I see crank raw water pumps for boats. Is there one of these pump kits made for the Alpha so I dont have to get into the outdrive to fix an impeller? I would like to cha… read more
Tan
Tan
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I have a 2005 Bayliner 275. Yesterday I was running for a
I have a 2005 Bayliner 275. Yesterday I was running for a solid hour at 4K rpm, after idling a 1.5 mile No Wake Zone, my boat overheated. Water Temp gauge was maxed out, alarm sounded. I turned the en… read more
Scott Martin
Scott Martin
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Hi, I have an 88 27 ft Mirage with twin 7.4 lt 454 engines
Hi, I have an 88 27 ft Mirage with twin 7.4 lt 454 engines 330 hp per side bravo one mercruiser outdrives. Last year the port outdrive was toast. My mechanic replaced it with a rebuilt merc outdrive. … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 7.4 litre mercruiser with a bravo 1 outdrive. Last
I have a 7.4 litre mercruiser with a bravo 1 outdrive. Last weekend I took the boat out and it began to overheat while in neutral. When I ran the boat a little bit the temp guage dropped down to about… read more
K. Kergan
K. Kergan
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Vocational, Technical or Trade Scho
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hi this travis what is the proper removal and rebuild procedure
hi this travis what is the proper removal and rebuild procedure for the alpha stein drive is there there a procedure you could e-mail me [email protected]… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
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i have a oil leak on my outdrive where i attach the thing to
i have a oil leak on my outdrive where i attach the thing to flush the engine. the outdrive was down for a while not crved up . do you know why it leaked and how do i fix it. the motor is a 4.3 inboar… read more
Kenny
Kenny
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My 140 mercruiser started to overheat. I just bought the boat
My 140 mercruiser started to overheat. I just bought the boat and have no idea when the impeller was changed last. I am skilled with auto mechanics but outdrives are not my forte is an impeller change… read more
Master Tech
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I had my ski boat with Mercruiser 350 on trailer with water
I had my ski boat with Mercruiser 350 on trailer with water hose hooked up to the sea strainer and ran the motor. The water did not come out of exhaust while running the motor. I already replaced the … read more
gearheadII
gearheadII
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I have an alpha one outdrive and if i try to run it submerged
I have an mercury marine alpha one outdrive and if i try to run it submerged in a tank it overheats, does the boat need to be in moving water for the impeller to function. the impeller was just replac… read more
Larry B.
Larry B.
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High School or GED
574 satisfied customers
How difficult to change the impeller on a Mericruiser 3.0?
How hard is it to change the impeller on a Mercruiser 3.0 with the alpha one outdrive? I think I messed mine up winterizing last winter. Heated for just a second. It is a 07' model.… read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
1,009 satisfied customers
I think tha I need to change impeller on my lower unit, any
I think tha I need to change impeller on my lower unit, any advice ? and is it very difficult to do ?… read more
Larry B.
Larry B.
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High School or GED
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

3,332 satisfied customers

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

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

22,804 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,507 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

Marine Mechanic

2,759 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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