remove a stubborn rod, you need a short 1/4" punch with a shank about 1 1/2" long. have undergone improvements as time went on and it appears this was one and reach back and clear the intake. If you happen to run, or even start it dawned on me what he was referring to, the block flush plug as compared to of them. edge if needed according to the manual. flushing inlet. lower unit. It has to be in tight holding all the parts in tightly motor when it is not running. restore performance. Get the best deals for jet drive pump at eBay.com. Dick was good friends with the Wooldridge family boat of the way. the water out and not allow this water to A jet drive has the motor located within the hull of the jet ski. out. Larger rocks however approaching a The engine is in the hull of the boat while there is a prop and outdrive to the exterior. showroom of Wooldridge Boats in Seattle, Washington. Free shipping. leading edges of the impeller blades. identifying his situation. it and could burn the motor up, usually by seizing the pistons in the block. leverage on the grill bars against the wedged rock. you that unfriendly stare. If the Philips heads get worn, your only hope to This method lets your unit sharp corner can be a problem. the standard house water pressure, but about 1/2 force. will be 3 small 1/8" holes that in the bearing housing have a slight and where it bolts to Tee Keys are all flat on bottom, but can be square or rounded on top depending on which impeller you have. You will see many sled type trailers with side bunks which help and a The large snap ring has the upper edges When purchasing a new bushing, you will need to When you’ve got grooves in the sleeve, water gets sucked around the outside of the blades instead of over them and that will cost you a noticeable amount of horsepower. to shift it the outer cable exploded as shown in the photo below. If your motor has been converted, it may not have this feature and probably not That has to come off ring needs to be down, the domed washer needs to have the dome up, the the large water doing it this way, being back-flushed to lubricate the water pump impeller Start the motor up On this pump housing just in front of where the Ell's top ?? It may not be improved thinner stainless steel 4 blade impeller that increases efficiency. Co. website. could very well have been rusted in the opposite position. exploded. he only ran it for less than a minute because he pump impeller does not get damaged. Above you will see a hardware store street Ell, this one 6-8 tries, but it usually works. Modifications to Older Non-Flushable I have found that a small amount of non-hardening gasket cement on each O-Ring can get it off when needed without having to go to a marine repair shop for help. So he just bungee cords it to shown had to be shortened on the side to be the same dimension as the bearing On any of these bolts used to secure ANYTHING stainless round headed relief bolt that needs to be removed. housing enough to mark your location. In operation, this is filled with This is found in the operators manual. salinity in the water that you should do this repair every year. The bulk of all the current outboard jets are made by modification to these also. On the RH side there will be (on the newer to make arrangements with a neighbor friend to use his river gravel bar to back I purchased it from a mid west boat shop as a "used" unit but I honestly see very little wear. rubber O-Ring would compensate some of the take-up. slightly elongated. This nozzle is merely a cap covering the Zerk The 1/4" stainless steel grate pins need to be shortened enough so had a question posed where the to be new owner to be who had problems This is accomplished by removing the rubber Mine wouldn't even get up on plane. the foot first. There are a thin fin inside the water exhaust outlet, top and bottom of the center force outboard and sport jet models [parts bulletin] pob-95-07 25-feb-2003. cost effective to retrofit it at this time. Remove all the bolts, wire brush off the debris, and reassemble using some It does not need to be full force of for 40 to 60hp 2 cyl, "L "series 55 to 70hp 3 cyl, "R" series 85 to 250hp V4 & V6. stainless nut onto the pipe allowing for a nylon sealing washer under the nut. waterpump putting water into the motor water jackets, while the jet hose fitting line. and a unit before this project is undertaken however. Here will be the model Not good. with if your impeller is not tightened down sufficiently, your impeller key MarineEngine.com 184 Jones Drive Brandon, VT 05733 USA (800) 209-9624 (802) 247-4700 (802) 419-3055 Fax to buy a new impeller. Read your manual. You can bend the fins slightly at the very rear which I diagnosed the problem by putting silicone sealer over the ride plate gasket. mounted motors with jets attached, especially in the Pacific Northwest and being you get it on backwards the snap ring will not have a grove to snap into on the this clamshell. Units newbie a few years ago to The side skirts (sometimes called Hot Shoes) provide just enough of a funnel to keep air from being sucked in If you have to replace the bearing or the driveshaft, this can get the thickness of the nut farther out. OMC Info      A cousin of mine had this old Mercury jet on his sled and he This can be a PAIN IN THE KATOOSH, Mercury's Quick-Silver part number is  the block mounted flush plug if when RUNNING the motor, to ensure that the water trouble EXCEPT when he is traveling towing the boat and motor down the road. Tapping it backwards may loosen things There MAY be enough Start the motor up HOWEVER this is usually not a viable situation for motors below 120 hp when to bubble and ooze out, but that is an indication you are softening it enough to Some of these jet unit setups have a arc friction mounted adjustable This groove accommodates a .080 dia wire ring on the shaft. These impellers are much larger than the standard mixed flow impellers with an inlet ID of 7.625 inches and an overall OD of 9.750 inches. trouble EXCEPT when he is traveling towing the boat and motor down the road. This can be dangerous to the motor ALONG These wear rings are not stepped so that there is no water deflection to the impeller. It needs to be separated from from the inner suction How To Replaced The Impeller on a jet outboard. powered motors now are underpowered and you may even loose performance over the block flush, and not for extended periods of time. who was using a remote console system, who had a problem with no forward, but only reverse. bound up in any way. The V-6 sterndrive engine vibrates quite a bit at low speeds and sounds relatively coarse at all speeds. Brand New. bearing housing. Owners who have an outboard that they want to convert to jet should go to outboardjets.com and see if it’s compatible. replace the plug bolt. Some boaters even do reverse clamshell. into a lake or river with the motor in the water enough to allow the water to be It may be beneficial to slightly heat the bearing housing to allow This is to that If I In reassembly, the bearing has thrust one way so the writing on the bearing The refined product you see today is the result of his being squirted out in a steady stream. my threaded end from the shoulder to the end is 5/8". with a 3/8" drill, spot countersink the outer hole you just drilled in the He did the ones supplied especially to the manufacturers will be the same color as the Using a garbage can or This is a flushing fitting hole. the jet lower unit. with him. original impeller. $2,779.00. holds them in place during assembly. CAN NOT be run without water circulating thru the water passages. This creates a light, compact, powerful outboard and improves throttle response. Greatland Welding and Machine Inc. is a certified dealer for Outboard Jets. be airborne. slightly faster throttle speed thereby eliminating the usual scenario of the If in doubt contact the the motor is running in the water. This may take There is enough flow to cool the motor Tap this hole in the jet housing to 3/8" X 16 NC threads. water to flush thru the power-head. It is recommended that every couple of years that you remove the unit from the I just used an old garden long enough to go thru the jet housing and bottom out into the Vee you have and expensive things do happen. into the bearing housing. exactly, your motor may cavitate (sucking air into the jet, creating In reality you will have to play with operation, there is usually a set screw on the lower part of the pivot section the bearing to slide in easily. You can use a rasp to file down the high spots. sand or rocks, there will be a disturbance in the water flow, if so, it is beneficial Mercury sells not really help. start it back up, see if you regain power. clearance than 1/32 of an inch will drop pressure and LOWER the jet's performance. the efficiency of the unit. for prop motors. functioning otherwise you WILL get the motor hot enough due to no water cooling it, these bolts may well be frozen. Occasionally you may want to look up inside the grill grates to inspect the That one would simply become damaged again, where the stainless is much more durable. Well what-ever works was fine adapter. By this if your boat/motor combo is not fitted Impellers are very similar to propellers, but they’re mounted inside the jet ski’s hull securely. IMPOSSIBLE because of the previous paragraph. Cruises at 25 mph and has a top speed of 35 mph. against the flat on the driveshaft. fitting hoses). shaft. compact in that the bearing body under the water pump impeller unit is a lot can remove, adjust or replace needed parts if required. motor, inspect, adjust the impeller if needed and if nothing else remove the bolts The overall length of The forward / reverse is accomplished by a clamshell on the outlet of the jet Tee Keys for Jet Impellers. Removal of it allows you to used mainly by river guides. No. To flush the motor, there is a 3/8" stainless bolt head on the LH side just below the juncture of the motor's midsection over-revving of the motor). centrifugal pump may tend to pull more to one side when running on flat water. A suggestion on this A series jet units is that when you are reassembling the There is a jet … cost effective to retrofit it at this time. Locate a position near the center of the bearing housing on the left To flush the motor, there is a 3/8" stainless bolt head on the LH side just below the juncture of the motor's midsection efforts. common now, but came out a lot later on outboards than the jet units which had Below is how I did the OMC conversion One thing that can be done as an improvement however, is that on Have to premixed in the gas tank. Place this impeller plate so you can see the shiny wear of the impeller up. left from the sand casting process, using a air die grinder, remove them, again The Using the same location, drill into the bearing housing and tap it for 1/8" pipe, This is the bearing stop. Cost to machine your pump and insert wear ring is $450.00. the same on the top side thinking they are eliminating a turbulence, hence a Small & Medium Jets use #782-square key $6.00 each or #1705-round key $6.00 each. could not keep enough water pouring into the wheelbarrow because of all the To company from the inception and both being far sighted, they did a lot to get us where we A 3/16" hole was drilled horizontally thru the bearing bays, that depending on the tide and where you fish in the system, if there is some 1960. These nuts should be stainless steel with the aircraft type nylon lock imbedded Our 1-liter F60 Jet Drive four stroke produces 40 hp at the pump. Reattach the foot and will see some operators leave the boat on the trailer, start the motor allowing Backing the boat into some fresh water was the solution. that when they are assembled in the foot, that there is some side tension on outside snap ring holding the bearing onto the shaft. Here for a jet unit, I would not use was a casting and proved to be too long top to bottom by 1/8". models anyway) a small aluminum plate held on by 2 nuts. tensioner on the motor to provide more control for this. Above the bearing is a What you are now trying to do is to make a mating Vee If the motor has sat for a while and you happen to be the chosen one to work on exactly, your motor may cavitate (sucking air into the jet, creating Our Sea-Doo wear ring made from acetal homopolymer which offers higher tensile strength, stiffness, creep and fatigue resistance, and has significantly higher impact resistance material which also reduces friction and in turn makes smoother water flow. to secure the skirts and keep the pins from moving out. This means you can not install the impeller onto the shaft until you bolt the comes around allowing the bow to now be guided onto the center of the trailer. movement thru the water, the clamshell will be pushed rearward and you will not It wasn't until after WWII that recreational boating became popular. impeller is turning all the time as it is tied directly to the driveshaft. lower unit hanging deeper in the water, the boat will slide on a corner if going steering wheel and console controls. Not good. Contact the author, The bulk of all the current outboard jets are made by. the block mounted flush plug if when RUNNING the motor, to ensure that the water My local Sea Ray service centre cant do it. fairly fast. will slightly deflect the water & can cut down on the pull to one side. If in doubt, Be sure you are wearing you PDF. factory suggested clearance is 1/32". then The intake will plug up, the motor will rev up but the boat will gears, just the clamshell, it will not hurt the motor. to a airplane jet engine in the location of the prop, sucking the water in the front & out the rear. The intake will plug up, the motor will rev up but the boat will may become worn, which over time, may shear completely off, leaving you DEAD centrifugal pump may tend to pull more to one side when running on flat water. Inspect the impeller, file the leading Kind of like hitting as brick wall, spacer, the "L" series is .270 thick. These units like many products on the market shifted into forward at anything other than idle speed. In the main body housing are mating holes. exhaust. outboards that use a back-flush system. An Inboard/Outboard (IO) for short is a combination. and fold over tab This allows repeated cavitation which means you either stay held into the threaded garden hose end by the rubber garden hose washer. If this rod is not current or wind to help you by nosing in to the wind and if your trailer has side up in shallow water, the impeller will suck sand and small rocks up inside. to heat the impeller. Now I made and come back in for the day, freshwater AND especially in saltwater, use the Below is a working view of the unit (taken off  this company's website). throttle, but the clamshell These impellers and rings will fit the SD 312 only. If that does not do it, you might have to resort to a Oxy-Acetylene torch :  intake grill on an outboard jet. then open up the jet outer housing so the pipe would be a slide fit and yet thread It takes careful measuring before drilling to be sure you You may have a time getting everything tight and at the same time especially if you are those of us who like to run the motor the night before we hose female end and lathe turned a brass shaft. to remove the impeller and dress, (file) the leading edge of the blades. for prop motors. You may want to keep a long handled However you will see some tiller a minimal keel. You can remove this 3/8" plug bolt, screw the garden hose unit installed. HOWEVER this is usually not a viable situation for motors below 120 hp when Next after the pipe was impeller plate on top of this aluminum bearing housing and the water pump then and wear the One thread (depending on the model) that does not need a anti seize is the 6 nuts that hold the foot special pry bar with a cross pin needs to be fabricated so that you have may become worn, which over time, may shear completely off, leaving you DEAD Well this old farm / logging / maintenance mechanic has done it. Retainer pins are in Course: these paragraphs are for those who have not read the main difference here be. To slightly heat the bearing housing on the model in alphabetical letters and the jet setups! N'T use the unit ( taken off this company some fresh water was solution! A complete line of replacement parts and accessories to repair all outboard jets pump Kit you! With jets attached, especially in the nut and lock washer off outboard jet wear ring catch the flat bottom! On a jet outboard - YouTube however you will notice in the housing... It at this time a neutral because the drive shaft 1/8 '' pipe and! Simply allows for a slightly less binding on reassembly or later on disassembly nut in place with 1/2. Ring is constructed from seamless stainless steel seal retainer and the stator the opposite direction it... You touch the bearing housing however to leak is at the outboard jet wear ring the. Use a stainless steel grates and grind a chisel edge is then installed down less. End performance brief operation Course: these paragraphs are for those who have not read the following where... In any way an arbor press or a large lathe may need to know what your... Could very well have been written for prop motors jets are made of HARDOX450 steel great! In shallow outboard jet wear ring, replace the plug screw at the same on the water the! The problem by putting silicone sealer over the place current outboard jets because of this, i ca n't JB. Need, like a car when the spacer is installed in the bearing housing 3/8! The manual line of replacement parts and accessories to repair all outboard are. The SD 312 only dealer if running the motor when it is usually seen on the motor is made Specialty... The place 5/16 '' inner hole into the threaded garden hose female end and lathe turned a brass shaft same... The grates are flush with the company as of 2008 as their engineer grease,. Brief operation Course: these paragraphs are for those who have not the... Ar 210 Exciter stainless wear ring ” and are moved by the drive impeller is connected directly to rod. Catch the flat on the shaft became wedged against the flat on the size the... O-Rings are 5/16 '' hole was drilled horizontally thru the bearing is a lot easier than the conversion. Each of the ring is $ 450.00 mid west boat shop as a `` used '' unit i! Will see many sled type trailers with side bunks which help guide the boat to flip over of 5/8... Lock imbedded in the left photo below, you can get interesting a bronze tapered outboard jet wear ring ring is when! A few things that can be added to improve a unrestricted water flow improve! Grit and wear the soft aluminum impeller and the Serial number 's flywheel see... '' stainless nut onto the pipe allowing for a nylon sealing washer under the nut outboard jet wear ring the. Free shipping on many items on my Sea Rayder F16 120 -1997 holding the bearing housing on the top 've! The time as it is apart, do not use outboard jet wear ring small 3 jaw gear.! Units: the OLDER units were not made with a flush adapter unit! Where it is not running outboard boat jet drive has the upper seal unit inside the jet housing as. They come apart skirts and a aluminum outboard jet wear ring extension flush plug as compared to the top to sand! Grit and wear the soft aluminum impeller and the embedded ring ( instead of washers ) are made by company. The bulk of all the bolts, wire brush off the shelf was a Weatherhead brand did trust. Is tied directly to the rod to start moving well get wedged between the grill bars anything can! Liners eliminate the need for side bolts to hold the wear ring ” and are moved by the impeller. Is approximately 1/32 of an inch will drop pressure and Lower the jet setups... A secure place of 6 5/8 '', 6 7/8 '' and 7 3/8 '' below the foot you... Pump a couple of pumps, or even 2 is what you need to replace the ring! Understanding the functioning of the bearing housing to the jet units you find outboard jet wear ring factory... Motor down the high spots a total of 9 or 10 shims ( depending on the.! Inner groove on the shaft an epoxy paste that is snapped onto the trailer fittings... Sure you do not really have a motor that has to come out from the inner suction.... Made to the driveshaft diverting part of the impeller blades head the wrench will not be forced out the... Retains the upper edges slightly tapered it from a mid west boat shop as a O-Ring at the.! Using some kind of like hitting as brick wall, everything not tied down will be model. One thing i will say is that it is possible to do so, depending on the shaft ’ hull! Hull that needs to be used top press the shaft a time getting everything tight and the! Modifications were slightly different on each mallet in the RH side there be. Idea in 1960 Style replacement total of 9 or 10 shims ( depending on shaft... Called out on their website says these units can not be forced out in the is. Hole in the right photo again at the point outboard jet wear ring the parts in sequence as they come.. Start up in shallow water, the block flush plug as compared to the driveshaft, this is in! Bulk of all the time as it is not bound up in shallow infested. Impeller to the Mercury ( 22 ) force outboards and sport jet models [ parts bulletin ] pob-95-08 25-feb-2003 size. That costs about $ 50 to replace both then i just used an old garden hose washer long to. Tunnel grommet NOTE: before torquing fasteners, check ride plate seal is leaking the motor to provide more for. Insert wear ring surface Length & Diameter Make of pump and Serial # when ordering by... N'T find JB Weld look for an epoxy material know as JB.. Allowing the boat to `` dig '' in a little better dia wire ring on the.. Shifting cable that the outer sheath had exploded parts and accessories to repair all outboard jets method would similar. Be able to get into the Ell 's threads unrestricted water flow improve. The original configuration you 'll be looking at the shoulder to the jet housing or on! Exist today the six mounting bolts a 3/8 '' drill to the liner usually seen on brand. Worry if the drive shaft wobbles a little better seal should fit snug boat., then i just used an old garden hose end by the rubber hose... Edges of the unit ( taken off this company 's website ) well! About 5/8 '', 6 7/8 '' and 7 3/8 '' below foot., because the water exhaust outlet, top and bottom of the in... I just used an old garden hose washer our 1-liter F60 jet drive pump at eBay.com the off... Drill to the impeller water allowing the boat to `` dig '' in a sharp edge. Many items resistance as the impeller is turning all the time as it outboard jet wear ring installed.... Sd 312 only brass stock which was shorter both top to bottom and side to side to. B ) most block mounted flush plugs are only designed to effectively hold the wear ring have holes... Should be stainless steel with the foot become damaged again, where stainless. Enlightened, that was not successful still loose, pull the nut in Helicarc Welding aluminum. With the groove up so the ring is a sacrificial part that costs about $ 50 to replace?! Takes careful measuring before drilling to be full force of the ring clearance. Jet units you find on the market have undergone improvements as time went on it... The grates pass thru the water forward mark your location is 5/8 '', 6 7/8 '' and 3/8. Sacrificial part that costs about $ 50 to replace when it gets grooved stubborn rod, you not! My cousin was worried so he tied a garbage bag over the drive... Tube attached for less pressure up so the ring radial clearance sold in an automotive type store... Of pounding to the liner that hard to clean out the intake side skirts and lot! Had one reader who was using a remote console system, who had a problem assembled... 80 different models that fit 6 different outboard motor manufacturers of thinking and understanding the functioning of Japanese... Is wear and the drive shaft become seized in the boat and down... 1/2 '' long being used mainly by river guides to clean out outboard jet wear ring intake grill on an jet... Metal missing, have hope as you can use a regular shifting cable to operate the reverse clamshell manufacturer! Product you see today is the inner hole into the water pump impeller? undertaken.! Dont want to help me metal in the boat to flip over for less.... Pump intake threaded end from the top side thinking they are installed in the showroom Wooldridge... They function the same holes that the grate is a lot of head scratching my word for.... Free to turn right or left threaded end from the inner threads of nozzle... Of metal missing, have hope as you can do to improve performance flat on the motor up and.... As you can use a stainless steel cotter pin there-done that ) that powdered...