Cracked mercruiser water pump housing

If the ends of the impeller are shiny or cracked and some vanes are. Turned out the pump housing is cracked close the output side of the pump. Way more information than you ever wanted on how to fell a tree. The rubber impeller inside the pump housing suffers. Water in the bell housing is usually because there is water in the bilge that has gotten high enough to get into the bell housing by external mean like the boat has sunk or is sinking or too much rain and the plug not pulled or the bilge pump has killed the battery. After a quick diagnosis, i replaced the crank angle sensor and. How to replace a mercruiser water pump impeller it still runs.

Mercruiser has updated trim pump designs over the years. Hardin marine has designed an all new 316l stainless steel water pump impeller housing to replace the cheap factory plastic style housings used on original equipment applications. This is usually due to impeller or housing wear or impeller age. Michigan motorz stock a full line of marine parts and accessories. Last year i had to replace the water pump housing, because it was cracked and licking coolant. Preventative maintenance goes a long way repair that water pump before its too late. Then replace the cover to the pump housing, but leave the cover screwed in place loosely. Chapter twelve cooling system this chapter covers service procedures for the.

Stainless steel lifetime sea pump overhaul kit hardin. Mercruiser alpha one gen i water pump impeller replacement description. The pump for a mercruiser alpha one drive, for example, is in the lower unit of the stern drive. Was getting ready to finish rebuilding the pump on the honda motor but realized the pump housing was cracked. This is the same if you are rebuilding your existing hardin pump as the same rules apply. The water pump is a very important part of any outboard. How to replace a mercruiser water pump impeller it still. These housing will not crack and erode like the factory style units. Water pump kit contents vary, so please take a look at the contents of the water pump kit you order. My car is stock, so i have not lowered the car, and i have not gone over. Water pump metal housing for mercruiser alpha one gen 2 this item is the water pump housing only included in the glm12414 complete water pump kit and. Inboard stern drive cooling systems and how they work.

Of course your mercruisers impeller needs to be changed regularly, but its also a good idea to replace other components of your water pump to maintain proper engine cooling. On my 496 mag mercruiser i just replaced the sea water pump impeller, the installation went well, but the pump is not sucking any water and i have the bravo i dunk in a tank plus feeding water with ear muff. Once a crack opens, insert a broad screwdriver and carefully pry it apart, being careful not to damage the castings of the mating. The one piece rear impeller housing features a unique rear housing that has 1. The information provided on these pages is correct to the best of my knowledge, however the mastertech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. The mercruiser sterndrive parts you see here are the same as the ones in your engine now, so you can be sure that theyll fit and theyll perform exactly as they should. Ive found the one up high on the centerline of the engine and the one down low on the plastic housing.

Buy water pump kit for mercruiser alpha one gen 1 outdrive waterpump kit whousings. Worn or damaged water pumpimpeller, clogged passages, crackedkinked hoses. Once a crack opens up, the battle is won, and you can carefully insert a broad screwdriver and carefully. At first i thought it was a loose or leaking hose on the discharge side of the pump. Finally a sea water pump repair kit designed to do the job once and for all and will last a lifetime. Since 1968, west marine has grown to over 250 local stores, with knowledgeable associates happy to assist. Always use the oem pump on your boats there are many companies that also make these and from my experience they always crack and proceed to leak water in the bilge also always use a torque wrench. Sometimes boat issues seem like theyll be really complicated, but end up being easy to fix. Keep your boats pump in top shape by maintaining it at least once a year. Find great deals on ebay for mercruiser raw water pump and mercruiser sea water pump. Water pump impeller kit housingbase mercruiser alpha one. But when things do go wrong with the cooling system, the mercruiser is easy to troubleshoot and repair. This prevents the impeller from sticking to the pump housing. Mercruiser sterndrive cooling systems for sale ebay.

The impellar is held onto the front end of the camshaft in one of three ways. End faces hard and either polished or cracked, like carbon. Cracked aluminum can be adequately repaired without welding using an epoxy embedded with aluminum. This is a genuine mercury marine factory bravo 3 oem lower unit, not aftermarket. These engines all undergo a 15point inspection to insure quality, reliability and durability. At the end of last summer, i noticed it running a little warmer about 160, so i replaced the impeller. This mercruiser sea water pump comes with stainless steel fittings and glm original design brass impeller housing. It is recommended to service the water pump every 23 years.

While most boaters prefer to have a reliable marine technician inspect and replace their boats water pump, here are the steps to take for determined diyers and technicians alike. Hardin marine has designed an all new 316l stainless steel water pump impeller. Buy a genuine mercury quicksilver or aftermarket part. How do you replace the waterpump on a bayliner 185 3. Why do i have a cracked bravo raw water pump impeller. The mercruiser outdrive, or sterndrive, motor has been used on marine watercraft for decades. Outboard waterpump impeller service boatus magazine. As i have the 6lpastzp, i am assuming i need part number 1977342650.

Categories mercruiser sterndrives mercruiser inboards omc sterndrives. Some features may not work as intended in your current browser. But does anyone know if this is a common problem with the fieros. Closer inspection revealed the raw water pump pumping a lot of water into the bilge.

Water pump metal housing for mercruiser alpha one gen 2 this item is the water pump housing only included in the glm12414 complete water pump kit and glm12415 water pump housing kit, but does not. Mar 28, 2011 the water pump is in the lower unit of the drive. Why do i have a cracked bravo raw water pump impeller housing. The seawater pump moves water from the intake strainer into the engines heat exchanger. Remove the four nuts and bolts 1 under the trim tab and one in the very front on top of the lu slide the lu off then remove the 4 screws holding the pump housing replace impeller reinstall in reverse. This year same thing, thanks to the fiero factory i had the housing replaced with an used one. Drop the gearcase to access the water pump housing. Rebuilding water pumps once a year or every 100 hours is the best way to ensure these pumps are working at full capacity. Unscrew the bolts that hold the pump housing in place. These housings will not crack and erode like the factory style units. Enjoy discounts on oem mercruiser engine parts today.

Mercruiser sterndrive parts by year oem engine parts. On boats with mercruiser brave one and bravo three drives, the pump is enginemounted and beltdriven. I see the pumps, where is the impeller located inside the housing and how answered by a verified marine mechanic. A bit og googling revealed the following information on the pump. The waterpump impeller and housing should be one of the first items serviced after buying a used boat. As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to register for an account. Please check our current stock level and order below.

Mercruiser gen 4 lifetime series stainless steel sea water pump. Pump housing crack repair applied maintenance specialties. Mercruiser now has replacement high pressurelow volume pumps see below. Mercruiser gen 7 sea pumps possible suction issues. If your brass body is badly grouved and fails to pump.

The good news is that pump kits are not too pricey, and if youre handy, you can do the job yourself without much trouble. This site is best viewed in ie7 or newer and firefox 3 or newer. The housing should be free of cracks or scratches inside. My car is stock, so i have not lowered the car, and i have not gone. If your craft has a mercruiser outboard, its water pump will be one of its key parts. Get the best deals on mercruiser sterndrive cooling systems when you shop the. Mercruiser seawater pump assemblybelt driven 46807151a12. Unfollow 350 mercruiser water pump to stop getting updates on your ebay feed.

Older pumps prestolite that have the square reservoirs and cylindrical motors are no longer sold. In most cases, this basically consists of replacing the waterpump impeller. It is important to match your pump with your cylinder style. Not likely that the block is cracked if this is your evidence. The first thing to do is slide off the seal, which sits atop the pump housing. If water was left in the raw water pump over the winter, figure on a new pump housing and impeller as the ice will bow the internal end. Almost all marine engines rely upon an enginedriven pump to provide. Mercruiser 496 raw water pressure, what is typical sign in to follow this.

Ideally, the impeller should not be cracked anywhere, and it should. However, dont try to do it with the boat in the water. It is reliable and usually the annual maintenance performed during winter layup will prevent overheating problems. Jun 21, 2018 replacing the water distribution housing on a 4. Mallory makes a good one that attaches to the bell housing. In the 6 years ive owned this boat, it has always run a little above 140.

The gasket that goes around the water pump housing has to be sitting. These impeller housings wont corrode, erode, or crack and fall apart like. The mercruiser stern drive is one of the most popular marine propulsion systems on the water. Learn how to keep your stern drive boat motor cool calm and collected. Mar 26, 2007 cracked water pump housing merc plastic need to replace it welcome to themalibucrew. Michigan motorz carefully select premium, lowhour engines to remanufacture. Fits all bravo iii three drives from 1991 up including bravo standard, bravo x and bravo xr drives. The belt or gear spins a flexible impeller inside the pump housing. These older units were high pressurelow volume pumps. Now that i am home, i took a few minutes to remove it and inspect.

Water pump kit for mercruiser mercury mariner top housing 197390 4696148a8. I also hear a hollow noise so i do not keep the engine running no more than 30 seconds. Oem original equipment manufacturer parts are a great way to ensure that the work you do is up to the exacting specifications of the manufacturer. Power trim pumps mercruiser has updated trim pump designs over the years. Mercruiser jabsco 43210 raw water pump rubber impeller brass housing. Check with your marine dealer for the specific rebuild kits youll need for your particular model of engine and lower unit. Marine diesel engines yanmar 6lpa stp2 water pump housing.

Dont neglect your outboards water pump soundings online. Recirculating water pump for mercruiser,omc and volvo 2. Pump housing crack repair 1 thoroughly clean repair surface at last 2 on all sides of cracks or holes in accordance with metals preparation guide. Cracked water pump housing merc plastic need to replace. Marine diesel engines yanmar 6lpa stp2 water pump housing cracked. Belt is pretensioned with a spring loaded idler, so belt tension is not adjustable. Crack in engine block boat talk chaparral boats owners club.

Mercruiseromcvolvo water pump 884727, 986779, 3854017. The serial number tag is located on the upper drive shaft housing starboard side or on the back of the housing. You will now have full access to the aluminum circulating pump impellar. This surface no longer mates to the the new impeller, so it does not matter, the rear housing is now only a water inlet. Remove the 10 screws from the front water pump cover plate and remove the plate.

Water pumps free delivery possible on eligible purchases. The aluminum particles contained in the epoxy will adhere to the cracked part, creating a permanent bond that will hold up in most situations. If you look inside and see scratches, which stem from the presence of sand in your cooling water, replace. Offering discount prices on oem parts for over 50 years. Nov 04, 2019 some experts advise you to remove the impeller from the raw water pump, lubricate it with vaseline petroleum jelly, and put it back in the pump. Serial 0m600000 thru 0w059999 water distribution housing. Hover or click to view larger return to parts finder. Cracked water pump housing merc plastic need to replace it. Some of the most reliable water pumps and components for any boat are built by mercruiser. Cracked water pump housing, its now pumping water into the boat. Sound fine past knowing the how to remove a mercruiser 140 engine in this website. Jul 10, 2011 water in the bell housing is usually because there is water in the bilge that has gotten high enough to get into the bell housing by external mean like the boat has sunk or is sinking or too much rain and the plug not pulled or the bilge pump has killed the battery.

On my 496 mag mercruiser i just replaced the sea water pump. They are versatile, being able to pump anything from water, oil or the stuff in. Stainless steel lifetime sea pump overhaul kit hardin marine. When replacing your stock gen 7 raw water pump with a hardin marine stainless pump care must be taken to avoid air leaks. The engine we serviced for this story is a 115hp, 1996 mercury. Like all marine engines, the mercruiser relies heavily on its water pump impeller to send outside water through the engine manifold, jackets and passage to keep it cool. Water pump kit with housing for mercruiser bravo replaces 46807151a14.

The marine mechanic im going to connect you with knows all the tricks and shortcuts. It is usually down low in the bilge on the front lower starboard side of the engine. Will get a replacment pump as well as a rebuild kit so i have an incountry spare. Id say replace the pump impeller housing item 1 on attached link as there is always the possibility that the housing was damaged during the bearing failure, or that a small amount of water had frozen in the pump due to improper winterization, distorting the housing and causing the failure in the first place. Mercruiser 496 raw water pressure, what is typical contact us. Get the best deals on mercruiser sterndrive cooling systems when you shop the largest online selection at. Water pumps and parts for mercruiser sterndrives lower units. Cracked water pump housing merc plastic need to replace it welcome to themalibucrew. Mercruiser 496 raw water pressure, what is typical boat.