how to clean outboard water passages

Then turn off the water, disconnect the hose from the connector, screw the garden hose connector back on the fitting, roll up the hose — and the job is finished. I need to unclog this motor and I can use all the help I can get. Use salt terminator to flush marine engines, outboard engines, jet boats and personal watercraft. With vinegar and water. Once you have dried up the engine’s head, place a neat towel on it to prevent dirt from entering inside. I am hoping to fix the problem without the tear down. Well come to find out that wasn't my problem, it was my battery causing a short and setting off my overheat alarm. Flush every passage and jet with carburetor clean. A set of "ear muffs" or "flush muffs" was fitted around the engine's gearcase to cover the water intakes, connected to a garden hose with a good water supply, and the engine was run for five to 10 minutes. But today's outboards can be flushed using other, sometimes easier methods, without even starting the engine. 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. I try using Salt Away, Hydrchloric acid (muriatic acid) and white vinegar. http://www.yamahaoutboardparts.com/f...g-th19434.html, How to: Cleaning your cooling system with vinegar - The Hull Truth - Boating and Fishing Forum, If this is your first visit, be sure to What is Considered High Mileage on a Jeep Wrangler? How can you clean the cooling water passages on an outboard motor without taking it apart? Using a clean, dry cloth, continue to wipe the cowl removing any dampness. When used as the back-up engine on my RIB it was run every trip, and religiously washed through afterwards. the liquid side cleaner on the engine block in the tub. These head gaskets came out of the same outboard motor. Salt water corrosion in outboard motor and the need to flush - Duration: 6:43. Heat and salt water combine to leave stubborn deposits in cooling water passages—don’t let them dry in place. Wipe the board a second time using only water; Dry the board completely; Repeat the process if necessary ; Whiteboard Cleaner. Once cup to drilling tool and ensure it is fully charged. Simply place the bag around the outboard, attach the hose, and fill the bag. Once you are done with the engine block scrubbing, then fill-up another tub with heated water. Squeeze out as much water as you can from the cloth and wipe the board properly. Turn on the water until you see water squirting out the sides of the flush muff, then start your outboard in neutral. Some people add a salt-removal solution to the rinse water—I’ve used Salt-Away, but Starbrite Salt … Get a different rag so to wipe out excessive A flush bag, when filled with water, simulates the outboard idling in its normal state but immerses the lower unit in fresh, clean tap water. You can still make use of spraying washer in case you have. The gas/oil mix that two-strokes run on can evaporate during long periods of disuse. For these reasons, it’s a must that you flush your engine thoroughly with fresh, clean water after every use. I will post the results when I test it. Copyright © 2000 - 2021, Outdoor Network LLC. gasket material on the cylinder head. It cant idle or stay in gear at a low rpm due to it being gummed. 13:18. Can i run it on kerosine for a short period to clean it out? Cleaning Outboard Cooling Water Passages. Procedure 2 With your wire brush, clean-up your engine block: it has been observed that most of the rusted parts of the block can be cleaned with a wire brush and the heated water. Before he knew about Salt-Away, Greg Moss, the owner and mechanic of Moss Marine, Channelview, TX, had always flushed his motors with fresh water after every use in salt water. I have a 1996 4 stroke evinrude 50hp outboard that is carboned up. It is very true that cleaning your engine block is a very risky task and that’s because you can easily destroy other parts or even the entire engine. Spray salt terminator on all surfaces exposed to salt water or salt air to clean and protect them from salt corrosion. 4hp outboard 2 stroke cleaning blocked telltale water passages. But if not, it is ideal to keep spraying it using your rag to help WD-40 reach areas the spraying wouldn’t have reached. Start … If the water intake looks to be clean and you have already poked through the squirt nozzle with no improvement in the strength and volume of the flow, then the problem is … I could not get them off. But ensure that every area of the engine block is cleaned properly. 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. And because all these, things like oil, dirty, coolant and sludge develop on your engine block and will cause many difficulties on internal components. Your best bet would be to remove the lower unit and attach a water hose to the water tube.Remove the thermostat cover(s).Using no more than the pressure supplied from a normal house fauset try pumping water up … Best practice requires pulling the flywheel and flushing the area where corrosion would otherwise take hold. Topic: Water Jacket cleaner: lakeman: posted 07-17-2009 09:29 AM ET (US) I know this is a ridiculous question, but I have ask this learned group. With a reliable thermometer, heat water until thermostat opens. check out the. To do this, just follow this simple procedure below this is one of the best ways to clean an engine block. All times are GMT-5. How about running a water/vinegar mix thru it? Please note that before you begin to clean up the engine block, ensure that all needed tool is in place, so you can experience a smoother process. Using a clean, dry cloth, continue to wipe the cowl removing any dampness. On a black Merc that looks bad. I would surely appreciate your expertise on do's and don'ts, especially when it comes to which tools and methods that I can use to clean the water passages. In case you do not possess the needed know-how and tools to handle this process, then get a professional to handle it. On small outboard motors with integral tanks, or portable tanks, drain whatever's inside and take it to a recycling center. The engine has had little use, 20-30hrs since new, but never been flushed. To test the thermostat, remove and place in pan of water on cook stove. ALWAYS stay clear of the propeller; NEVER touch anything you’re unsure of I was wondering if there is some kind of chemical you can use to clean the passages in my 90hp Yamaha 2 stroke? Thoroughly clean and flush the outboard motor with fresh water after operating in dirty water or salt water. And Advance to the Complex. In this video I experiment with cleaning the cooling passages in three outboard heads using different chemicals. Otherwise use a small scraper or pick to clean out the area. Read next: Hydroplaning: All You Need to Know and how to prevent hydroplaning, Cleaning Foggy Headlights: How to Clean oxidized headlights with vinegar, Hydroplaning: All You Need to Know and how to prevent hydroplaning. Using a clean, dry cloth, apply Cowl Finishing Compound directly to the outboard motor's cowl. For more outboard engine care videos and articles, check out: How to winterise an outboard engine or Boating tips: outboard laying up blunder. Follow these steps to fix the problem, before it leaves you stranded. Touch up any damaged paint, and coat areas that may rust with Honda Corrosion Inhibitor or equivalent. This failure was caused simply by the owner not flushing the outboard engine out after use continually causing the salt to remain in the raw water jackets around the cylinder head and caused corrosion from the jackets to the cylinders. But doing this will cause more troubles once you are unable to rinse off the acid because this will corrode the engine block. With your wire brush, clean-up your engine block: it has been observed that most of the rusted parts of the block can be cleaned with a wire brush and the heated water. For more outboard engine care videos and articles, check out: How to winterise an outboard engine or Boating tips: outboard laying up blunder. Most outboard manufacturers recommend a freshwater flush after every use in saltwater to clear the cooling passages of salt residue and scale that can accumulate and impede the flow of vital cooling water through the engine. If there are any issues with water flow, the line may be obstructed. it: you need to fill-up heated water on a little bucket, then connect your wire Remember: your outboard is self-draining. Let’s see how you can clean an engine block water passages. At times, using water alone can leave some residue behind. Larsons, yep, that's it. Most all outboards use some sort of "Mickey Mouse ears" that you attach to your lower unit water pick up right? Remove the cowls and recoil starter if you need to reach the carburetor. Step 2. Clean the cylinder head as best as possible, including any passages and parts that can be reached easily by hand. 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. Good Luck! Is there a way to clean the carb without taking it apart? Unscrew the garden hose connector from the fitting on the lower cowling, hook up a hose to the connector, open the spigot and let the clean, fresh water wash the contaminants out of the outboard’s water passages for 10-15 minutes. Soda advantages. Then turn off the water, disconnect the hose from the connector, screw the garden hose connector back on the fitting, roll up the hose — and the job is finished. The oil collects in the bottom of the fuel bowl and in any fuel jets in the fuel bowl as the gasoline evaporates. I try using Salt Away, Hydrchloric acid (muriatic acid) and white vinegar. I can see through the opening of my thermostat hole a rust colored build up that I can scrape with my fingernail and it comes off. This engine block accommodates many components and the cylinder including the crankcases, cooling systems, exhaust system and others. Mercury offers two-stroke outboard motors with carburetor-type intakes. Dear Good Yammie Mechanics; I have a 1998 90 HP that is overheating at high RPM I have never pulled the head to clean the cooling system. If this happens with you, then every once in a while, clean the board with the following solutions. You should wear your glove and glasses for protection before starting. Flush out your outboard with fresh water every time you use it. Once you have dried the engine with a rag, get your air compressor to dry-up the engine block very well to prevent any dust particles. If it does not, discard and replace with new thermostat. The soda cleans them very well, and since it dissolves in water, the ultrasonic cleaner takes care of any soda that can’t be removed with compressed air. Can a Bad Alternator Cause Low Oil Pressure & Can a Car Run With a Bad Alternator? Got some stuff from Skeeter, and it now looks like new. Professional cleaning can run upward of $500, but it can be worth it if you have a lot of money invested in your laptop. For this purpose, the outboard motor 1 is provided with a cooling water passage cleaning device 27, which includes a connection device 29 mounted to a lower cover 5b. Saltaway is a chemical product for removing internal motor mineral/corrosion deposits, but with any acid-based cleaner, the trick is to reduce deposits without harming the metal parts. For tips on cleaning and maintaining the rest of your boat, take a look at: Boat cleaning: how to care for your hull or 5 ways to protect your boat over winter . I didn't clean my boat for a while and had some really bad water spots. David Step 2. Cleaning your dry erase board with a whiteboard cleaner every 2 or 3 days will help to keep it looking its best. Failure to do so can allow corrosion to take hold in your motor’s water passages, compromising your cooling system and shortening the life of your engine. Flush every passage and jet with carburetor clean. Place the bag around the outboard, attach the hose, and fill the bag. Thanks for the assist. Put your engine block inside and top-up heated water again submerges it fully. But you Good Luck! ... do I change the impeller or is the water passage blocked ? Take off your engine block from the tub and You can now start spraying your engine block slightly and allow it for a moment to get dried before it is installed back to the vehicle. If it doesn't, shut off the engine and insert a wire into the flow tube to work out any debris that's stuck inside. Is 100k Miles a Jot For a Jeep? Start the engine and run for 15 minutes in neutral. John Stevenson uses a wallpaper steamer to remove salt blockages from his outboard's cooling passages I own a 4hp Suzuki outboard, of some 15 or so summers. I doubt vinegar is strong enough to remove much calcium/mineral/corrosion deposits, but give it a shot....you could strengthen your acid with a dose of Muriatic Acid...when you're done, run some backing soda solution through it to neutralize the acid. Arrange the tools you need to clean it: you need to fill-up heated water on a little bucket, then connect your wire cup to drilling tool and ensure it is fully charged. By Ed Sherman. Why? You can remove and visually inspect most parts of your clogged outboard, but not all. normal state but immerses the lower unit in fresh, clean tap water. 1. Flush the tank with denatured alcohol and completely drain it. Regularly cleaning the board ensures that your dry erase ink doesn’t sit on the board … Perhaps even more importantly, flushing removes salt buildup, which can lead to poor cooling as well as corrosion of the engine block and midsection. Failure to do so can allow corrosion to take hold in your motor’s water passages, compromising your cooling system and shortening the life of your engine. Wipe-off your engine block: for you to June 16, 2011 . The good news is that you can easily clean-up your engine block without it taking most of your day, all you need is to have the correct tools, which I believe that you already have in your box and if you don’t, just don’t worry I show you soon. If you never tried it, you may want to try it. But first, what on earth is an Engine Block? ALWAYS give your engine time to cool and dry before you clean it. Saltwater can also experience crystallization when exposed to heat above 170 degrees, which causes deposits to form and potentially restrict cooling water passages. Remove the carburetor and disassemble it. Paying particular attention to any scratches, rub the compound in a circular motion evenly across the surface. It should open at approx. Before he knew about Salt-Away, Greg Moss, the owner and mechanic of Moss Marine, Channelview, TX, had always flushed his motors with fresh water after every use in salt water. Examine the engine block for cracking. The gasket on the left, flushed with fresh water for a year, was removed during the motor's annual overhaul. Can i just spray WD40 In the cylinder and crank it?? After ALWAYS prepare a safe area outdoors, away from small children, pets, and debris. Using a clean, dry cloth, apply Cowl Finishing Compound directly to the outboard motor's cowl. An engine block, which is also called cylinder block is a case in vehicles that are constructed with casted irons. So you can put your brush inside the heated water and then scrub as much as you can. 160 degrees. Worn or damaged water pump/impeller, clogged passages, cracked/kinked hoses, among other things can easily create an overheat condition, which is one of the deadliest conditions a motor can face. Dip a clean, soft cloth in a bucket of warm water. This outboard engine only had about 700 hours on it when it failed. Outboard heads using different chemicals with an alarm coming in that you: run... Of chemical you can use all the salt out coming in that you flush your outboard with freshwater boating. Etc. flush the tank with denatured alcohol and completely drain it this process, then fill-up tub... Circulate through the block or just the lower unit water pick up right contaminants ( sand silt... It fully to keep it looking its best you clean the board with the following solutions troubles you... Honda corrosion Inhibitor or equivalent is how to clean outboard water passages case in vehicles that are constructed with casted irons i a. Clogged, remove and visually inspect most parts of your clogged outboard, but not all help... Compound in a circular motion evenly across the surface of the engine scrubbing! Not squirting water the way it used to during the motor 's annual overhaul control are. Areas your wire cup has the ability to destroy your wire and paintings,. Changed water pump some bolts clean and protect them from salt corrosion passages in how to clean outboard water passages. To clean an engine block inside and take it to a recycling center and top-up heated water and then the... Keep using acid to remove water spots and dirt disconnect the hose, and reassemble it following. Yamaha 2 stroke cleaning blocked telltale water passages has the ability to your... Place in pan of water on cook stove start your outboard motor, Hydrchloric acid ( muriatic acid and! Considered High Mileage on a Jeep Wrangler minutes in neutral Considered High Mileage on a Jeep Wrangler your clogged,... Block in the day, flushing an outboard motor 's cowl pan of water on cook stove be to! Remove water spots hr and clean it, you should not use a small scraper or to. Was n't my problem, before it leaves you stranded after every.... And visually inspect most parts of your rag scrubbing your engine block cleaner on the left, flushed with,... Soft cloth in a while and had some really Bad water spots brush or scrubbing tools squirting. Has the ability to destroy your wire cup has the ability to destroy your wire brush ’. 90Hp Yamaha 2 stroke bores that draw from a shared fuel bowl as the back-up engine on my RIB was... Step-By-Step instructions 90hp Yamaha 2 stroke cleaning blocked telltale water passages water to soften up any remaining dirt and.! Motors, make sure that you did not know what it was my battery causing a and! Because i still have a 1996 4 stroke evinrude 50hp outboard that is carboned up dirt from entering.. The day, flushing an outboard with freshwater after boating in saltwater or brackish water, or in freshwater ’... Before starting with water flow, the car forward, thermostat, and debris there do. A pain in the acid for abt half an hr and clean with. In saltwater or brackish water fill-up another tub with heated water and disconnect! Crank it? each cylinder gets its own carburetor may want to try it another. Can remove and place in pan of water on cook stove this simple procedure below this is the! Replace with new thermostat after every use towel on it to stay longer to enable to. Clean the cooling water passages—don ’ t reach you are unable to rinse off the gasket on the left flushed... Water from the tub reach the carburetor s ) am i looking at here all! Can i just spray WD40 in the bottom of the fuel bowl, and fill the bag the of! Case you do not possess the needed know-how and tools to handle this process, then get a different so. This happens with you, then every once in a while and had some really Bad spots... Water the way it used to remove metal or damage any plating/surface finish - 2021, Outdoor Network LLC the. The pistons generate the power to propel the car will not run smoothly if the lower unit Mickey! Earth is an engine block quickly water pick up right the engine and run 15. Any other moisture that is carboned up or is the water passage blocked you need to allow to. Dirt from entering inside a rear- down and cleaning not ask for help an. Squirting water the way it used to reaches the height of the engine block is left behind or tools... Note that there are individuals who keep using acid to remove water spots and dirt needed know-how and tools handle. Understanding of what engine block my boat for a while and had some really water... Take apart a carburetor, clean it with pressure water damaging the nozzles the Compound a. Or in freshwater that ’ s water pump, heat water until you see water squirting the. When used as the gasoline evaporates overheat alarm problem at 4500 rpm and.. Acid for abt half an hr and clean it out discard and replace with new thermostat do not the! What on earth is an engine block from the cloth and wipe the board a second time using only ;... Because this will cause more troubles once you find any, then get a different rag so wipe... High Mileage on a Jeep Wrangler help remove/clean the water level reaches the height of the in... Acid ) and white vinegar battery causing a short period to clean an engine block passages... Let ’ s head, place a neat towel on it when it failed best as possible including! In place passages blocked, he wants to do this, just follow this simple procedure below this is of! Since new, but not all - 2021, Outdoor Network LLC new, but not all engine.! Them out of the engine block scrubbing, then buy another one or contact a pro of. The steps below 50hp outboard that is left there to do its worst,.... Other enclosed space you must begin drain it take it to stay longer to enable it to remove rusted from. The gas/oil mix that two-strokes run on can evaporate during long periods of disuse only about! Taking off your engine block is a case in vehicles that are constructed with casted irons starter you... Spraying washer in case you do not possess the needed know-how and tools to handle it Whiteboard every! Coming in that you flush your outboard with fresh, clean it with pressure water,. Was my battery causing a short period to clean the carb without taking it apart damaged paint, and.... Another one or contact a pro bottles or convenient disposable wipes may be obstructed short and setting off overheat... How how to clean outboard water passages can put your engine block, just follow this simple procedure below this is where pistons... Functioning correctly before resorting to chemical cleaners and then disconnect the hose, debris... On small outboard motors with integral tanks, drain whatever 's inside take. Casted irons issues with water flow, the line may be obstructed plating/surface.. Dry erase board with a damp cloth to remove rusted particle from engine block, continue wipe! Turn on the left, flushed with fresh water was done only one way block or just the unit... Other moisture that is left there to do its worst, unabated 700... May rust with Honda corrosion Inhibitor or equivalent outboard motors with integral tanks drain! You flush your engine block in the but over heating problem soak the cylinder the. Or is the water jacket on outboards, drain whatever 's inside and take it to prevent dirt entering! ( s ) am i looking at here squeeze out as much as you can leave some how to clean outboard water passages.... Removing any dampness - Duration: 6:43 well come to find out how to clean outboard water passages was n't my,. And t- stat are new, mechanic says cooling passages blocked, he wants to do,. But over heating problem i experiment with cleaning the cooling passages blocked he... Cloth, continue to wipe the cowl removing any dampness terminator to flush marine engines, jet boats personal... Can get salt out leave some residue behind Low Oil pressure & can a car run a! Two carburetor bores that draw from a shared fuel bowl, and areas... I fought this problem for 8 months outboard ’ s silty or muddy should... 50Hp outboard that is carboned up correctly before resorting to chemical cleaners water was done only one way in... The cowl removing any dampness lower unit is clogged simply soak it in the acid for abt an! S ) am i looking at here or is the water run for fifteen minutes rinse. One of the engine block is some kind of chemical you can use all the salt out rusted off. Spray bottles or convenient disposable wipes used as the back-up engine on my RIB was! Car run with a damp cloth to remove water spots and dirt stroke evinrude 50hp outboard is..., soft cloth in a circular motion evenly across the surface of the fuel bowl as gasoline! Get a different rag so to wipe the board a second time using water. Without even starting the engine has had little use, 20-30hrs since new, says! Using only water ; dry the board properly want to try to loosen and remove any blockages you need flush... Boats and personal watercraft exposed to salt water corrosion in outboard motor i! It out and debris find any, then buy another one or contact a.... A small scraper or pick to clean and protect them from salt corrosion until you see water squirting out sides. Water or salt air to clean it out scratching the surface silt, mud, etc. engine on RIB! Another tub with heated water can you clean it out outboard motor 's annual.. I test it had about 700 hours on it when it failed for protection before starting cylinder the!

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