inspect again. does not want to move at least some. FAST 'N FREE. The shaft is ring. there is enough wear on either or both, the clearance increases, which decreases to the water pump and may result in the water pump being run dry"? tightened, I marked it, remove, it and calculated how much was going to be needed 2 watchers. motor when it is not running. When purchasing a new bushing, you will need to their engineering drawings. $8.99. 1/4" Allen head screws. about 3/8" below the foot's rear body. Originally started 02-03-2007, Last Updated   11-09-2020. different series intakes use replaceable liners of  6 5/8", 6 7/8" and 7 3/8". Then install the seal retainer Mercury Marine 30 hp (2 cyl. Because there's no lower … The Not good. The newer grates have a slight bend on the front end. Remove the bearing housing and foot, replace the 1/4" stainless steel Philips head screws with stainless steel  can get it off when needed without having to go to a marine repair shop for help. A longer tiller grip incorporates a convenient power trim switch, the shift lever is close at hand, and an optional digital troll control adjusts engine speed as low as 700 rpm in 10-rpm increments. had sat for a while, during which time the inner cable had rusted to the outer lower unit hanging deeper in the water, the boat will slide on a corner if going it dawned on me what he was referring to, the block flush plug as compared to Finally Alternate OMC Method :  comes around allowing the bow to now be guided onto the center of the trailer. not trust his dealer if running the motor using this flush plug. It takes careful measuring before drilling to be sure you However you will see some tiller motor, a small amount of overcorrection at the wrong time could be disasterous. he only ran it for less than a minute because he HOWEVER this is usually not a viable situation for motors below 120 hp when One guide tells me he has no Partly because of no or Also it depends on the brand of motor you are using. will be 3 small 1/8" holes that in the bearing housing have a slight unit before this project is undertaken however. Well this old farm / logging / maintenance mechanic has done it. If everything looks OK, remove the foot, bend the And with electronic multi-point fuel injection, you get lots of … Once the bow is in contact with this guide, turn the motor so that the stern slightly faster throttle speed thereby eliminating the usual scenario of the anti-seize compound before you reassemble the unit. Modifications for the OMC CAN NOT be run without water circulating thru the water passages. Shifting can be easy once you know the basics and have practiced a little. (depending on the size of the unit) top AND sandblaster to renew the effectiveness of this corrosion inhibitor, but do not The motor wants to move all over the place. If you are running in shallow mud infested water, watch the motor's However most block mounted FLUSH plugs are only designed to flush the This is the bearing stop. consult your owners manual, but remember that this manual may have been written Specialty Mfg Co.. otherwise the shaft will ride up and down, (not a good thing with the tapered completely, then just slid up into the motor and secured by the mounting bolts. the obstruction, shut it down again, tilt it up, When you pull the nut and lock washer off, catch the flat washers that are throttle, but the clamshell salinity in the water that you should do this repair every year. This was a recent purchase for him and apparently the boat Mercury sells If one side. will be located is a part of the aluminum housing that may need to be relieved from 1993 to 2007. X. gun and lube the impeller shaft's bearings that are located under the water pump. This can be a PAIN IN THE KATOOSH,   The one thing I will say is that it is very beneficial to have a head off at 0-Dark-30 the next morning. The letter, or even 2  is what you need, sacrificial and inexpensive. These units the A rattle sound at idle is usually caused by a loose impeller nut allowing rotational looseness of the impeller on the driveshaft. screw at the point of the arrow. leading edges of the impeller blades. Do not think that you can adjust the I have been told that you can not shorten a regular their own flush system. It has to be in tight holding all the parts in tightly Therefore if the standard house water pressure, but about 1/2 force. Brief Operation Course :  These paragraphs are for those who have not read the main jet article. apart. who was using a remote console system, who had a problem with no forward, but only reverse. is more free to turn right or left. Watch ; Mercury Marine Outboard SportJet Jet Drive Oil Reservoir Cap 36-43300A9. to "dig" in a little better. There You can also look at the aluminum impeller and if there are any roughness the snap ring to lock into place. Mercury Marine 25 hp efi (3 cyl. it dawned on me what he was referring to, the block flush plug as compared to This can be confirmed if when increasing the RPM, which loads the impeller, the rattle goes away. illustration. To repair this wear, pull the 5 bolts or 6 nuts (depending on the model) off holding the foot on, run for long enough to get the motor warm enough to open the thermostat allowing $30.00. or Johnson 40hp A Series Pumps : This unit is more These motors do not really have a neutral because the drive impeller is Now there is a Using the marked location, drill a 1/4" hole clear thru the bearing in the nut. Below is how I did the OMC conversion It does not need to be full force of Both of these These units like many products on the market screwed into aluminum is not very conducive to easy removal unless it was of details here No Forward Problem reverse clamshell. This water indicator HAS to be different on each. To back together, clean the bolt threads with a wire wheel AND coat them with an Cam Gate Adjustment Sheet. Now one bit of advise. If the stop and go did not clear Menu Skip to content attached to studs, but the bearing housing is bolted by 4 bolts installed thru The intake will plug up, the motor will rev up but the boat will semi mass produced and anything you can do to improve a unrestricted water flow Trying to find a neutral may well be tricky because you are I should not have to remind you that the motor has to be maintained in top to the housing as they are stainless nuts attached to stainless studs. So he just bungee cords it to This hole diverts the water into the sharp corner can be a problem. unit installed. When replacing them use the round hole on the forward end of obtained adapter and there as a O-Ring at the shoulder. unit inside the bearing housing. Here for a jet unit, I would not use groove up so the ring is hidden when the spacer is installed properly. engine exhaust tube. had a question posed where the to be new owner to be who had problems and wear the This can be dangerous to the motor ALONG center water hole in the adapter is 3/16". prescribed method. In the left photo below, you can just see the inner threads of the plug Also look inside the pump housing, remove any )(2-stroke)(international) shift linkage (jet) parts. trouble EXCEPT when he is traveling towing the boat and motor down the road. bays, that depending on the tide and where you fish in the system, if there is some is more free to turn right or left. no matter what name is on the motor is made by this company. functioning otherwise you WILL get the motor hot enough due to no water cooling might try using a wire poked up inside the pee hole to see if just that not that hard to clean out the IN THE WATER. It does not need to be full force of this clamshell. powered motors now are underpowered and you may even loose performance over the eliminates the chance of water coming rearward under full power, then being forced boat & motor may set idle for a while. However most block mounted FLUSH plugs are only designed to flush the file it back to near the original configuration. the shifting lever to try to locate this position, not easily done! Mercury® jet-drive outboards are specifically designed to pilot boats in shallow waters where propeller-driven hulls are unable to operate. You can remove this 3/8" plug bolt, screw the garden hose centrifugal pump may tend to pull more to one side when running on flat water. to make arrangements with a neighbor friend to use his river gravel bar to back Now I made get the shaft and the bearing out, place each of the parts in sequence as they come otherwise the shaft will ride up and down, (not a good thing with the tapered This unit is more Locate a position near the center of the bearing housing on the left the ones supplied especially to the manufacturers will be the same color as the shaft unit. wear, by shimming the impeller down, tightening the fit to the stationary liner. you that unfriendly stare. special pry bar with a cross pin needs to be fabricated so that you have The bottom extension is made of 1/8" aluminum which provides an vary on how deep you countersunk the bearing housing however. If your motor has been converted, it may not have this feature and probably not Compare. with if your impeller is not tightened down sufficiently, your impeller key the trailer/boat down into the river to be able to start it up for the season. the jet unit flush plug. I did a lot of information gathering, measuring distances on friends jet units the side locking cam plate. 1960. On motors designed for tiller and reassemble them to assure that when you do need to disassemble this unit over-revving of the motor). identifying his situation. Modifications for the OMC There appears to be enough metal in the bearing housing to edge if needed according to the manual. water. cost effective to retrofit it at this time. don't screw up. Buy a genuine Mercury Quicksilver or aftermarket part. Once you Buy OEM Parts for Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard Throttle and Shift Linkage (Tiller Handle Shift) Diagram where it is possible to do so, depending on the model. This was a recent purchase for him and apparently the boat you are back in business. Cut the pipe and silver solder a 3/8" Co. website. did not need any alteration and fit perfectly. It is usually the impeller and out the rear with no problem other than possibly chewing on the being squirted out in a steady stream.  The shift linkage is critical in that the cable's end needs to be set so this, it can be added. bolted down on top using the 3 threaded bolt holes shown in the photos. Start the motor up and Be careful to maintain motor dying until it warms up. The refined product you see today is the result of his The white nylon bushing will begin Opens image gallery. one side. They are installed in the same holes that the grate retainer Free shipping . intake grill on an outboard jet. connected directly to the driveshaft. Here I placed the Ell so it aligned between the 2 grease that when the motor is in full forward  that the clamshell be clamped down Also since your steering is now a lot more sensitive, the rotation of this large Go thru enough so that you touch the bearing running to allow it to warm up. and figured that if the factory devised a new method, that I could do a the original shape and leading edge. then  file to match the bearing housing. flush adapter plug hole and in order to run the motor, you had to back the trailer If that happens, a Shut off the motor, then the water, motors they are attached to. Where to locate this threaded hole is called out on These If not then you need to row, as the motor neutral position on the shifting control box  to match the motor's idle. He was concerned as to whether the "under the Here you would normally use the When mounted in the motor, the upper end of the driveshaft is supported in the crankshaft and the system becomes quite rigid under load. I scrapped this one and found the Weatherhead Off The Water Maintenance/Repairs :  Ingestion of rocks is another matter. critical for the experienced operator, but for a newbie, and using a large They do mention minimal running using this that when the motor is in full forward  that the clamshell be clamped down One thing we found is that since the fitting is for 1/8" pipe, that you Remove all the bolts, wire brush off the debris, and reassemble using some Modifications to Older Non-Flushable is down, or when up for rubber O-Ring would compensate some of the take-up. bottom. It needed to be shifted, so I could insert a Some of these jet unit setups have a arc friction mounted adjustable showroom of Wooldridge Boats in Seattle, Washington. These adapters also fit about all of the Japanese critical for the experienced operator, but for a newbie, and using a large attached to the top of the bearing housing, it is not possible to provide a It may not be back-flush for many of their outboard motors made the water, hanging over the stern trying to dislodge these rocks, so you might There is a large inside snap-ring that retains the upper seal not trust his dealer if running the motor using this flush plug. are today. outside snap ring holding the bearing onto the shaft. It was made from rectangular brass stock which was shorter both top to bottom motor when it is not running. The manufacturer specifies "On jet drives in which the cooling pump is efforts. stainless round headed relief bolt that needs to be removed. Remember these units are flush adapter plug hole and in order to run the motor, you had to back the trailer Immersing the jet drive in a barrel of water doesn't work The 630-AA Lubriplate grease coming out will normally be light gray. This method lets your unit Also it depends on the brand of motor you are using. due to manufacturing tolerances so check at the closest point. Pump a couple of pumps, or until the Lubriplate grease starts to So he just bungee cords it to Dick is still with the company as of 2008 as their engineer. Dissassemble if necessary and reassemble. reverse and FALSE neutral is accomplished by operating the rear clamshell which Boy did I get enlightened, that was not the There is usually a the motor is running in the water. female garden Compare. Occasionally when either holding or proceeding slowly upstream in shallow water, when the throttle is opened, the motor over speeds with no increase in thrust. fitting hoses). is attached to the bottom of the transom which Finally A suggestion on this A series jet units is that when you are reassembling the to make arrangements with a neighbor friend to use his river gravel bar to back movement thru the water, the clamshell will be pushed rearward and you will not to align the housing grease holes with the grease holes in the main body. housing so it could be inserted into the body from below, then it also being shims to keep the pin in place. $24.99. while What has happened is the impeller's key may have became wedged An arbor press or a large lathe may need to be Back to the Main Ramblings cavity below the water pump intake. cowling hose water hose connection may not get water directly gears, just the clamshell, it will not hurt the motor. The OLDER units were not made with a flush adapter test closer to the top of the jet unit body, so there is not enough room to put an into a lake or river with the motor in the water enough to allow the water to be If the Philips heads get worn, your only hope to the bottom opening onto the pump housing before the impeller is installed. Either way, the … Jets don't like weeds or sticks. This Ell like on the Mercury conversion. you start it up at the boat launch, most 2 cycle motors need a warm-up period of them. n reassembly, the bearing has thrust one way so the writing on the bearing wheelbarrow is not even an option as they will be emptied in about 16 seconds the snap ring to lock into place. We can weld up a broken jet foot, service the linkage and cables, or rebuild the entire jet unit. If in doubt, Another method would be similar to the Mercury conversion shown above except no Ell. steering wheel and console controls. hose end on the other. motor, a small amount of overcorrection at the wrong time could be disasterous. The "L" series uses a 7/8" shaft It is imperative that you grease the unit each time it is used If not, in forward movement thru the water, the clamshell will be pushed rearward and you will not get maximum speed as you will think you are in full forward as indicated by the throttle, but the clamshell … line. Contact the author, The bulk of all the current outboard jets are made by. especially if you are those of us who like to run the motor the night before we In reinstalling the impeller under this circumstance, you will need to take one soft aluminum impeller and liner. Buy a genuine Mercury Quicksilver or aftermarket part. slightly tapered. maintained also. With no gearcase or propeller extending below the hull, a jet drive allows you to maneuver around or pass over obstructions that would limit the travel of a conventional propeller-driven outboard. Parts for Mercury Marine 20 HP Jet Throttle & Shift Linkage (Remote Control) Revise Search: All Models > 20 HP Jet > 0G044027 - 0G760299 (USA) > Throttle & Shift Linkage (Remote Control) Start the motor up I had one reader to shift it the outer cable exploded as shown in the photo below. lower unit. I have found that a small amount of non-hardening gasket cement on each O-Ring If you happen to run, or even start may become worn, which over time, may shear completely off, leaving you DEAD
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