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I recently purchased a 2007 24ft River jet boat and want to
I recently purchased a 2007 24ft River King jet boat and want to change the oil but I dont know what oil the previous owner was using. On the oil fill cap it says 5w-30 but my manual recommends 10w-40… read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
Dominick, 2004 Crusader Engine 8.1 MPI For the last 5 or 6
2004 Crusader Engine 8.1 MPI For the last 5 or 6 years the anti freeze overflow bottle not working. Before starting engine I have to take the antifreeze out of overflow bottle and put back into heat exchanger approx 40 ounces. Seems to be getting worse last year on a 3 hour run when I slowed down going in to port the temp started rising up to about 185 degrees.The next day after engine cooled antifreeze had overflowed the overflow bottle into bilge.I once again removed antifreeze from overflow bottle and put back into heat exchanger and ran the boat back to home port without any issue with rising temps the only thing that continued to happen is that the antifreeze from overflow bottle is not siphoning back into heat exchanger. I must mention that only when the overflow bottle overflows i have to add antifreeze to system.Most case i just remove from overflow bottle and put back into heat exchanger. Also no visible leaks any where and have changed the thermostat made no differance at all. On short local runs engine temp 160 to 165 no problem there. … read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
What is the proper way to refill the coolant in my Mercruiser
What is the proper way to refill the coolant in my Mercruiser engine? I replaced my exhaust manifolds and of course had to drain the coolant out of my engine. Now I need to refill. Is there anything s… read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
I was changing my oil in my 2007 210 ssi 5.7 and t the
I was changing my oil in my 2007 210 ssi 5.7 and hit the positive terminal an the alt. Now it won't turn over. There is two breaker by the battery. there no tripped everything else works. There is 4 f… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
99 Ski centurion. breaker next to the ignition key, blows
99 Ski centurion. breaker next to the ignition key, blows randomly. then I wait until breaker will allow us to reset and starts or just blows again… read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
Hello, I have a 10 year old VOLVO PENTA 2030D. So far no
Hello, I have a 10 year old VOLVO PENTA 2030D. So far no real problems. Today I got an engine overheat red light warning and high pitch sound. I immediately shut down the engine and continued to the h… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1999 Sting Ray Model 190RS with an inboard mercruiser
I have a 1999 Sting Ray Model 190RS with an inboard mercruiser 3.0. There is a side plastic tank ( I presume not the engine oil which has a fill cap on the top) that says mercruiser oil that is empty.… read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
I have a mercruiser eng 350 mpi Horizon close cooling circut
I have a mercruiser eng 350 mpi Horizon close cooling circut I have a hard time starting up after a few times I smell gasoline and the boat is flooded My mechanic says I need a new ECM the one that i … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have two Bravo III drives one of the drives gearlube monitors
I have two Bravo III drives one of the drives gearlube monitors overflows and i can see bubbles inside. I have pressure test the drive but havent got any water in it. No problems last season but start… read more
Jason
Jason
Marine Mechanic
18,647 satisfied customers
I have a 1999 Sea Ray Sundancer with 350 Mag BWI engines with
I have a 1999 Sea Ray Sundancer with 350 Mag BWI engines with a closed cooling system. I would like to drain and replace the antifereeze/coolant which is the pinkish/red type. First what is the proper… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Hi--I have a 29ft. TIARA boat with 454 crusaders closed cooling
Hi--I have a 29ft. TIARA boat with 454 crusaders closed cooling and the overflow plastic tank stays low all the time--the engine does not overheat---when I top it off to the full when cold mark , when… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
Hi, I haave a 7.4 MPI Mercruiser engiine and was wondering
Hi, I haave a 7.4 MPI Mercruiser engiine and was wondering if anybody can tell me what type of oil goes in the secondary compartment just next to the oil filter. It looks like a bluish oil… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a Chrysler-Nissan SD33 6cylinder-1975 with approx 1800
I have a Chrysler-Nissan SD33 6cylinder-1975 with approx 1800 hrs. in a boat which I purchased recently. Motor ran great for the 5hr. trip to its new home. Had difficulty last week replacing the zincs… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
350 mercruiser mag mpi. 2008. Engine mounted on a Dyno, starts
350 mercruiser mag mpi. 2008. Engine mounted on a Dyno, starts and runs great but will not accelerate past 3200 rpm. acts like a rev limiter or ?. any ideas?… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 350 MAG / MPI. The fuel pump has 2 cooling hoses that
I have a 350 MAG / MPI. The fuel pump has 2 cooling hoses that attach to it. There are 2 plastic fittings that the hose connects to then is just pressed into the fuel pump and tightened by one single … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I would like to flush and change the anti-freeze on the fresh
I would like to flush and change the anti-freeze on the fresh water cooling side of my Mercruiser 350 Magnum MPI engine. It is a model year 2004 with the dealer installed fresh water cooling package w… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
Mercruiser 350 Horizon MPI - How to properly flush Engine of
Mercruiser 350 Horizon MPI - How to properly flush Engine of Brackish salt water while in boat slip… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I have a 1993 Tiara Model Open 2700 with twin inboards Mercruiser
I have a 1993 Tiara Model Open 2700 with twin inboards Mercruiser 5.7L 350/250. These are carborated engines (probably manufactured in 1992) I ahve owned the boat since 2006. Each engine is losing coo… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 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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40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

John White

John White

Marine Mechanic

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

Jason

Jason

Marine Mechanic

18,647 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

2,672 satisfied customers

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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