Boat

Have Boat Questions? Ask a Boat Repair Expert.

Connect one-on-one with {0} who will answer your question

Related Boat Questions
350 magnum EFI/MP Bravo One 5.7 1995 S/N OF598119.
Overheating under load, at 3000 rpm, replace sea pump new due to it was leaking by pulley, no change, also check water flow (sea) to the sea pump, check good, also run engine and disconnected hose to the exhaust manifold good water flow, ran up to 3000 in neutral good flow , then i replaced circulating pump since original from 1995! no change still over heats last I replaced thermo stat and again no change! I run in neutral as high as 3000 + no problem, only when in gear under load. Could a head gasket do this? also, the moment you reduce power in gear you can see temp drop down old boat old engine I hate giving up like to know if it is time!!! … read more
Jason
Jason
Marine Mechanic
22,976 satisfied customers
I have a 2008 5.7Gi300J with 250 hours. Just recently the
I have a 2008 5.7Gi300J with 250 hours. Just recently the engine over heats slowly (10 minutes at idle) when in sea water. If I attach hose water it will idle indefinitely without overheat. Thermostat… read more
Jason
Jason
Marine Mechanic
22,976 satisfied customers
hi i have a 4.3 v6 mercruiser and the risers are getting hot.
hi i have a 4.3 v6 mercruiser and the risers are getting hot. The manifolds and risers have been replaced in the last 12 months. i have checked the water flow from the leg to the engine and all is ok … read more
Jason
Jason
Marine Mechanic
22,976 satisfied customers
Have a overheating problem with Volvo penta 5.0 ford 302 with
Have a overheating problem with Volvo penta 5.0 ford 302 with cobra sx. I replaced circulator pump, sea water pump impeller. exhaust manifolds and risers and all bellows still over heating when I put … read more
Jason
Jason
Marine Mechanic
22,976 satisfied customers
i have twin Mercruiser 305 ci (MIE228) in a 1978 Bertram 28
i have twin Mercruiser 305 ci (MIE228) in a 1978 Bertram 28 the port engine has been overheating with the temp gauge showing rapid increase at higher rpm, then dropping when rpms are reduced and engin… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,507 satisfied customers
Good morning, I am buying my 1st boat. It is a 21 blue water
Good morning, I am buying my 1st boat. It is a 21' blue water runabout.It has a 1995 5.7 mercruiser with 450 hours on it. I just wanted to know how reliable this motor is. The boat is shrink wrapped a… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
2,666 satisfied customers
Hi there. I just replaced a corroded engine block mercruiser
Hi there. I just replaced a corroded engine block mercruiser 350 alpha 1 era 21' freedom. This engine was raw water cooled, I have since purchased a heat exchanger for it. Do I need to run a separate … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
http //www.manifoldwarehouse.com/mes/mgr brch mesprod&pno 0992-400clr If
http://www.manifoldwarehouse.com/mes/mgr?brch=mesprod&pno=0992-400clr If you look at the gasket set that they sell ( see URL above )when you replace your exhaust risers, one of the gaskets is called a… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Hi I have a mercruiser 305 in the water and want to replace
Hi I have a mercruiser 305 in the water and want to replace the circulating pump. How do I prevent the water from coming into the boat?… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
2,666 satisfied customers
i have a mercruiser 496 mpi 8.1 closed coolant sysem manifold
i have a mercruiser 496 mpi 8.1 closed coolant sysem manifold sensors throw an alarm at about 175 degrees. The engine temp with a temp gun is 165, the manifold are the same and the risers get up to 20… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have restored a 1974 Chris Craft XK-19 boat. Fresh water
I have restored a 1974 Chris Craft XK-19 boat. Fresh water use only - no salt water use. It now has a 2007 Chevy 350 replacement crate motor. It uses the log style, wet marine manifolds with "hump ris… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
I have a 1993 Mercruiser 502 Bravo I. I am replacing the exhaust
I have a 1993 Mercruiser 502 Bravo I. I am replacing the exhaust manifolds, the risers, the circulating pump, the thermostat housing and the seawater pump impeller. My question is about using a sealan… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 1988 Mastercraft with 351 that will rise in temperature
I have a 1988 Mastercraft with 351 that will rise in temperature to 190-200 in about 10 minutes of operation. If I slow down and idle, it cools back to 160 and stay there. I have replaced raw water pu… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,507 satisfied customers
Hi,i have a 5.7 mercruiser and alpha one stern drive,i installed
Hi,i have a 5.7 mercruiser and alpha one stern drive,i installed a closed cooling system.But the engine starts overheating after a while when i speed up.If i install a raw water pump insted of using t… read more
K. Kergan
K. Kergan
Inboard/Outboard Mechanic
Vocational, Technical or Trade Scho
1,031 satisfied customers
1984 omc 3.8 liter fresh water cooled. Having overheating issues.
1984 omc 3.8 liter fresh water cooled. Having overheating issues. replaced lower unit pump (looked ok) and circulation pump (impeller a mess). Originally was able to run boat on a plane to keep engine… read more
Jason Forsberg
Jason Forsberg
Outboard Marine Mechanic
Vocational, Technical or Trade Scho
531 satisfied customers
I have a over heating problem with a 260 hp Mercruiser chevy
I have a over heating problem with a 260 hp Mercruiser chevy thru the hull drive engine.It is overheating so I removed the thermostat,boats in Miami,still over heats and the cooling water is black and… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
1999 5.7GS Volvo Penta Runs hot. Both risers same temp. Have
1999 5.7GS Volvo Penta Runs hot. Both risers same temp. Have changed impeller, thermostat, rubber boots. Removed all broken pieces. Exhaust water comes out secondary ports but not the prop. If I remov… read more
gearheadII
gearheadII
Bachelor's Degree
138 satisfied customers
I have a 1973 chris craft express, 25 ft. I replaced the 307
I have a 1973 chris craft express, 25 ft. I replaced the 307 with a 350 automotive engine. It is sea water cooled. the problem i have is the engine doesn't seem to be circulating water. Have osco exha… read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 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

22,976 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

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

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

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x