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I want to drain the engine, need to find the seacock. I have
I want to drain the engine, need to find the seacock. … read more
Charles
Charles
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I am winterizing a Mercruiser 4.3L TKS 190hp engine. I pulled
I am winterizing a Mercruiser 4.3L TKS 190hp engine. I pulled the block and exhaust manifold drain plugs to drain the water the other night, because I wanted to prevent any possibility of the block fr… read more
Charles
Charles
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I have drained the water from my 4.3l v6 Mercruiser to winterize
I have drained the water from my 4.3l v6 Mercruiser to winterize it. I want to add some RV antifreeze as well to insure there will be no freezing, but I'm not sure where to pour it in. In one of the h… read more
Tan
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I have mercruiser 2003 twin 5.7L MPIs with open cooling system
I have mercruiser 2003 twin 5.7L MPI's with open cooling system and dry seal risers. I have the single drain system with the blue plug and the water distribution housing. Both engines are dripping und… read more
orcamarine
orcamarine
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The alarm sounded on my 4.3 mercruiser this evening indicating
The alarm sounded on my 4.3 mercruiser this evening indicating overheating, low oil or low drive fluid. Oil and drive fluid are fine. I can't find anyplace to check the coolant level. Is there a way t… read more
Jeremy R.
Jeremy R.
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I have a 1998 mercruiser Alpha 1 3L The Manifold drain hole
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Tan
Tan
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I just bought a houseboat with twin 2003 5.0 MPI Mercruisers
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James
James
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Vocational, Technical or Trade Scho
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I need to winterize my 2010 Mercruiser 4.3 MPI Stern Drive
I need to winterize my 2010 Mercruiser 4.3 MPI Stern Drive (Freshwater) for sub freezing temperatures. I've inspected the engine and find a Blue Twist Knob, an Upper Blue Thumb Screw by the Thermostat… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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I need to replace the blue plastic plug in the thermostat housing
I need to replace the blue plastic plug in the thermostat housing on my Mercruiser 5.0 MPI with something different. New plastic plugs just cross-thread so I suspect that the internal threads are rust… read more
Tan
Tan
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I have a 5.0 Litre Mercruiser. Model MCM 5.0 Litre Turnkey
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Whitecap36
Whitecap36
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Vocational, Technical or Trade Scho
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I have a 2008 mercruiser 4.3l with the mutiple point drains
I have a 2008 mercruiser 4.3l with the mutiple point drains 5 of them. I completly drained all 5 and checked to make sure that the drains were not blocked. I left the drains plugs out trailered it 30 … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
what is a quick fix for a stripped cooling drain plug hole
what is a quick fix for a stripped cooling drain plug hole on a 350 mercruiser in my mariah shabah? I can't get the brass plug back in the block.… read more
Tan
Tan
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Hi, I want to service my 1998 mercruiser bravo one lower unit
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270 satisfied customers
I have a 450 Mercruiser I/O, Bravo 3. Boat is stored above
I have a 450 Mercruiser I/O, Bravo 3. Boat is stored above the water in my boat lift. This weekend the air temp is expected to be 25 F or so for 12 hours, then warm up to 40, then freeze again (20F) f… read more
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On a 2008 350 Mercruiser engine. They added a mainafold system
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Captain Dave
Captain Dave
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i have a 1997 4.3 mercruiser 190hp. i have hot water that
i have a 1997 4.3 mercruiser 190hp. i have hot water that comes out of a brass fitting on the side of the block. it shoots water for a minute then stops. what is happening? jason… read more
capt ron 1959
capt ron 1959
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Vocational, Technical or Trade Scho
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I have a 4.3 Mercruiser with 5 blue plasic water plugs. Can
I have a 4.3 Mercruiser with 5 blue plasic water plugs. Can you tell me where they go, or better yet,guide me to a diagram? I don't have a manual. The mechanic at the marina wants me to bring it in so… read more
davesoutboard
davesoutboard
owner
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the drain plug hole is stripped in the lower unit of my 1995
the drain plug hole is stripped in the lower unit of my 1995 Evinrude 200 Ocean Pro. What is the best fix? Retap the hole and go to next size screw, or use next size larger self tapping screw?… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
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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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