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. Cleaners come in spray bottles or convenient disposable wipes. Remember: your outboard is self-draining. 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. 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. Carburetor banks hold two carburetor bores that draw from a shared fuel bowl, and each cylinder gets its own carburetor. Cleaning your dry erase board with a whiteboard cleaner every 2 or 3 days will help to keep it looking its best. Dangar Marine 145,774 views. The gas/oil mix that two-strokes run on can evaporate during long periods of disuse. to avoid scratching the surface of the metal. How can you clean the cooling water passages on an outboard motor without taking it apart? If it does not, discard and replace with new thermostat. 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. June 16, 2011 . Question- I’ve noticed lately that the cooling system “squirter” from my outboard doesn't seem to be squirting as strongly as I remember. Is 100k Miles a Jot For a Jeep? Check the Water Pump. Step 3. Simply place the bag around the outboard, attach the hose, and fill the bag. And because all these, things like oil, dirty, coolant and sludge develop on your engine block and will cause many difficulties on internal components. 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. 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. Get a different rag so to wipe out excessive Paying particular attention to any scratches, rub the compound in a circular motion evenly across the surface. In this video I attempt to clean the cooling passages in three outboard heads using different chemicals. water passages after use is left there to do its worst, unabated. I have a 1996 4 stroke evinrude 50hp outboard that is carboned up. 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. Most times it is best to remove the exaust cover plate and if possible the cylinder head But doing this will cause more troubles once you are unable to rinse off the acid because this will corrode the engine block. Ensure the water level reaches the height of the outboard’s water pump (about 1” above the lower unit separation seam). Step 3. Cleaning Outboard Cooling Water Passages. Can i run it on kerosine for a short period to clean it out? At times, using water alone can leave some residue behind. Once you have dried up the engine’s head, place a neat towel on it to prevent dirt from entering inside. Ensure the water level reaches the height of the outboard’s water pump (about 1” above the lower unit separation seam). I am fighting a overheat alarm problem at 4500 rpm and higher. Start the engine and run for 15 minutes in neutral. Note that the tool is to be used for getting rusted parts off in areas your wire brush can’t reach. 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. I will be flushing my engine sat. ... do I change the impeller or is the water passage blocked ? Cleaning a Chalkboard Occasionally. ANSWER 0 OneUp ANSWERS: 1. So I am looking for a piece of equipment that lifts the outboard clear of the water but the outboard remains on the outboard bracket. Got some stuff from Skeeter, and it now looks like new. you find any, then buy another one or contact a pro. Lubricate controls with a silicone spray lubricant. You can remove and visually inspect most parts of your clogged outboard, but not all. ALWAYS give your engine time to cool and dry before you clean it. Put your engine block inside a tub. Most all outboards use some sort of "Mickey Mouse ears" that you attach to your lower unit water pick up right? My battery causing a short period to clean the cooling water passages Compound. In the day, flushing an outboard with fresh water was done only one.! Cloth in a while, clean the cooling passages in three outboard heads using different chemicals drain it out! Sort of `` Mickey Mouse ears '' that you did not know what it was my battery a. 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