In case of a flushing port, the engine should be turned off. d. Re-install thermostat and impeller. The cooling water system of an outboard is critical to the survival of the powerhead–passages have to be kept clean and smooth by frequent flushing with fresh water. Instead of a radiator you have the river, lake, ocean etc. Outboard engine repairs: starting, fuel, shear pins, Solve your outboard motor problems: starting, fuel, shear pins, How to winterise a four-stroke outboard: video. Allow the engine to run at idle for at least 5 minutes to clean the inside of the engine. The bolts,etc., cannot be budged. He writes about all aspects of boat ownership and marine travel, including destinations, seamanship and maintenance, as well as undertaking regular new boat and gear tests. First get a large heavy duty bin or drum and fill it about 2/3 full with water and added 4 gallons of vinegar. I advise that ANY motor which has been idle for more than 1 year have a VISUAL check of the pump. Touch up any damaged paint, and coat areas that may rust with Honda Corrosion Inhibitor or equivalent. In old times, flush muffs were used to flush outboard motor cooling systems as they are cheap. Re: (Spring Cleaning) How to: Cleaning your cooling system with vinegar I ran the motor for about 20 minutes and then the temp started to creep up due the water in the garbage can getting hot. Be sure to turn off the key and, if you have a battery switch, turn it off. The motor shouldn't be allowed to keep overheating, because permanent damage can occur. boats.com, Cams Hall, Cams Hill, Fareham, Hampshire, PO16 8AB, UK. Your motor is now flushed. Flush the raw-water side of your cooling system each year as a part of your winter layup procedure. Plumb the Quick Flush Valve permanently into your engine's cooling system. 9. A couple of products I’ve used are Seaflush and Forté cooling system flush. It then passes through the galleries in the engine and out through the exhaust. Don’t be complacent about replacing the outboard's impeller. Rupert Holmes has more than 70,000 miles of offshore cruising and racing experience, in waters ranging from the North Sea to the Southern Ocean and Cape Horn. It is ok to flush for up to 1 minute. Generally speaking, there are three methods to flush an outboard: using a flush bag, flush muffs or the freshwater flushing attachment built into the outboard. Gently … The cooling system of my 90hp yamaha outboard motor in the upper unit is clogged with salt deposit build-up from use in salt water. We will mention the methods used to flush the best outboard motors. The garden hose attachment is pre-installed in the engine, all you need to do is attach the hose and turn the water on for 10 minutes. Open gate valve and turn engine on to allow more flushing mixture to flow through system. cooling system indicator, stop the engine and check the freshwater supply. But some parts require a different approach. Calcium buildup also may damage your engine’s water pump. Flushing your outboard motor when you've been boating on saltwater is an incredibly important part of routine engine maintenance.Not doing this is a recipe for disaster, as a buildup of salt can block the cooling system, leading to possible overheating and it will eventually corrode your engine … If water does not come out of the cooling system indicator, stop the engine and check the freshwater supply. Bag and Muffs: Engine should be vertical, run no more than 800-900 rpm in neutral for 15 minutes with the prop removed. Thoroughly clean and flush the outboard motor with fresh water after operating in dirty water or salt water. 9. Most outboards employ open cooling systems, meaning sea water or lake water is pumped into and circulates through the engine to cool internal components. Turn off engine after Salt-Away foaming action has appeared, about 20-30 seconds, while Salt-Away is still present in the water jackets. CFS – Descaler is a safe bio-degradable calcium, lime, rust, mineral and marine growth and descaling agent. He also owns two yachts, one based in the Mediterranean and the other in the UK. Without it, an outboard motor will overheat. POWER. However for proper drainage, the engine should be brought back to the original position. Right: Splitting the lower unit away from the rest of the leg. Flushing your outboard engine of saltwater or muddy water is critical to the longevity of your product. The Best Stereo Amplifier Under 1000 | Review & Guide 2021, Best Night Vision Scope Under 1000 Dollars – Review & Buying Guide 2021, Best Long Range Rifle Scope Under 300 Dollars, Great Quality Pontoon Boat Slide Kits for Fun Time – Review & Buying Guide 2021, Create positive vibes with the Best Negative Ion Generator- Review 2021, King Canopy – Best Portable Garage for Snow Load. In modern times, there are several easy ways to conduct this flushing, as listed below:-. The only characteristics to be careful about are that you should strictly follow the user manual and the connection should not be cross-threaded. However a lot of factors have to be taken care of e.g. In old times, flush muffs were used to flush outboard motor cooling systems as they are cheap. Remove mixer from muffs and connect spray nozzle and you are ready to wash boat, trailer, fishing gear and dive gear. The water pump impeller of any outboard motor needs to be serviced on a regular basis, a task that if overlooked can lead to big trouble. Fill the cooling system with about two cups of liquid dishwasher detergent dissolved in hot water. How to start an inboard boat engine out of water? You should also take the engine cowling off after every outing to check for fuel or water leaks. While the motor runs, it pulls harmful plastic fragments from the water, leaving it cleaner than it was before. After 1-2 minutes, close gate valve and shut engine off. It helps the cooling system run at maximum efficiency by keeping the cooling water passages clean and clear, which helps minimize the heat inside the engine, making it less susceptible to dry corrosion. All you need to do is connect a garden hose, fit muffs on gear case and turn on the water. Mercury - Mariner Outboard Cooling System If you need help finding the right part give our techs a call 1-800-998-9508 . Most boaters know it’s imperative to flush an outboard with freshwater after boating in saltwater or brackish water. Marine Closed "Freshwater" Cooling Systems. To maintain an outboard motor, flush out the engine after every use, and check to make sure the water flow exiting the motor has a strong output. This one is just 15 months old but the vanes are already permanently distorted. Always flush your engine according to the manufacturer’s instructions. Calcium buildup also may damage your engine according to the longevity of product... 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