This is not a stuffing box but a shaft seal with two neoprene seals, used on speed boats, & should not drip if the grease is kept up to it. It’s packed with “stuffing” which is really just rings of braided fiber, sometimes hemp or flax impregnated with wax and a lubricant. There have been more than a few boats sunk by improper tightening of the stuffing box nuts. I eventually sliced the stuffing box hose along the top from end to end after I could not even remove the bronze fitting after loosening the forward 2 hose clamps. Required fields are marked *, Designed by Elegant Themes | Powered by WordPress. When adjusting the stuffing box keep in mind that; if the adjustable stuffing box nut is too tight you will burn the packing which can end up with a damaged shaft. Now turn the adjusting nut clockwise until the dripping just stops. Thanks It should drip a few drops per minute when the shaft is turning, but no drips when in neutral. The percentage of water that is permitted to seep into the box is not enough to harm a boat's propeller, though it is enough to provide sufficient lubrication for the box. I did a 10 minute run from the yard where I worked on her to the new home port and as far as I could tell not one drip! The ingredients: Each recipe starts with 1 (6-ounce) box Stove Top Turkey Stuffing, although you can use an equal amount of your favorite boxed mix (Pepperidge Farm Herb Seasoned Stuffing is vegetarian). sauter.pl. No joy. In either case you must adjust the pressure against the stuffing around the prop shaft. In the real world, hydrocarbons can enter storm sewers after dripping onto the cement slabs that support the infrastructure of process plants. He has over 45 years of Pacific Northwest boating experience. stuffing box, making certain it fits the packing space properly. The stuffing box parts are not brass, but bronze, and you can probably get one at a marine consignment store for a very reasonable price. I suspect I have to losen the stuffing box a bit. The hardware components within the Stuffing Box perform the important function of minimizing the leakage of "pumped up" process fluid out of the Stuffing Box; without Packing or a Mechanical Seal in the Stuffing Box, leakage would naturally occur … Stuff this ring of packing carefully into the hollow packing nut, then cut a second piece of packing the same length. Basically the this is what prevents water from entering the boat. We figured the stuffing hadn’t been changed in over 10 years, so now was as good a time as any. It will wear a groove in the shaft though. Your email address will not be published. Dripping, or not - a total joy On one of our little jaunts, we found that the wing engine stuffing box was getting too warm. Sandy Golden. Or maybe it somehow went out of adjustment and is getting too hot. A lock nut screws around the housing and tightened against the packing nut to keep it from losing as a result of vibration. A drip every 2-3 seconds at the dock and a few drips a second underway in forward gear. #, Installing a new #electroscan electrode pack and c, Twitchell the #owlharbor #marinacat waiting patien. Made up of a synthetic material into which flutes or grooves have been cut to facilitate water flow, it centers and steadies the stuffing box on the shaft. It should drip a few drops per minute when the shaft is turning, but no drips when in neutral. jeanneau.com. Start by loosening the locknut. A stuffing box is a type of seal that prevents fluids from leaking inside of machine parts. You … Infrared pyrometers have changed the way stuffing boxes are adjusted, now it’s a measurable balance between heat and drip rate. Tighten firmly by hand, and then use a large wrench to give it an extra half turn. When the shaft is spinning, the stuffing box must allow a few drops of water per minute for lubrication. Unless something is atypical on your stuffing box it should not be that hard to get adjusted. Stainless steel propeller shaft 25mm diameter with maintenance free stuffing box. I called the previous owner and he had not repacked it in 9 years. I have one installed on my 1991 Hunter 30T and have only had to adjust it once in the past 10 years or so. Deane is a freelance writer and photographer specializing in recreational boating and the yachting industry. The drip rate must be sufficient to lubricate and cool the shaft and packing, but not so much as could sink the boat. The boat is a 1974 Ski Nautique (17'9"). At rest my prop shaft temp was @ 73 degrees. Drip-Less = A stuffing box that drips less but still needs to drip some. I tightened the box but it did not change. It is used to prevent leakage of fluid, such as water, between sliding or turning parts.” – Wikipedia. Stopfbüchse aus Messing mit Abstreifring und doppelter O-Ring-Abdichtung aus EPDM. K. kamacdougall Kevin MacDougall. I have no idea the last time the packing gland was adjusted. They really don't wear out. Under way, (after 30 minutes at 2800rpm) the shaft temp had risen to 87 degrees. The drive shaft stuffing box is dripping about 2 drips per second. … Even with it splayed out wide I can not budge the remains of the stuffing box. johnson-pump.com . I had discovered the drip rate from my stuffing box with shaft stationary was around 40 drips per minute. On the day I shot this I did not have non-perforated hose clams that fit this hose. Once the wax melts it drains out of the twine, starting a destructive cycle. Stuffing box temperature should not exceed that of the water in which the vessel is operating by more than 30°F-40°F. Cut a piece of new packing just long enough to wrap around the shaft with no overlap. A properly adjusted stuffing box will have no drips when the shaft is stopped, but 2-3 drops/minute when the shaft is turning. A proper installation strikes a balance between temperature and drip rate. A stuffing box is an assembly which is used to house a gland seal. Boats face the challenge of remaining leak-free while spinning one or more propellers outside the hull. I have been strugggling to get the stuffing box nut on the rudder shaft tight enough to keep the box from leaking. The packing hardens and can eventually do damage by wearing a slight groove in the shaft making it impossible to for a seal. When properly adjusted, stuffing boxes are designed to "leak" slightly at two to three drops per minute while the engine is running and the shaft is turning. Start the engine and put it in gear. Overtightening the packing nut so that the stuffing box drips no water at all can wear a groove in the prop shaft and ruin it. Be very careful not to get near any engine or transmission seals. And except for a slow drip, the seal is watertight. Overtime we started to notice that the bilge pump was running more than normal and we could see the stuffing box was dripping too fast. If the stuffing box is above a deep bilge, tie a retaining line to the wrenches before you start. When a stuffing box starts to leak excessively, you should tighten the packing nut until the leak stops. Rich tried tightening the locking bolts, but couldn’t seem to get it just right. So what’s not to like? sauter.pl. In general, it’s “an assembly which is used to house a gland seal. This type of seal does not drip and runs cool. The cooler your stuffing box runs, the longer shaft life you’ll have. The conventional stuffing box’s one primary failing annoys many users to no end, so much so that several manufacturers have attempted to improve on the design. Google the Glenwood Marine catalog page 35. A properly adjusted stuffing box will have no drips when the shaft is stopped, but 2-3 drops/minute when the shaft is turning. For the non boaters, the stuffing box is an old low technology thing that stops water pouring into the boat from where the propeller shaft is fitted. Disclaimer:  This is not a “how-to repack your stuffing box” post. This doesn’t include butter and water, which you’ll need to make the stuffing, and olive oil, salt, and pepper, which … The recipe below is just a basic template that can lead to all kinds of experimentation. Schraubenwelle Edelstahl Durchmesser 25 mm mit Lippenstopfbuchse … Stuffing box made of brass with wiper ring and double O-ring seal made of EPDM. I was driving through Gilroy this weekend with my family and the air temp was 109 degrees. Posted by Deane Hislop | Oct 2, 2018 | Maintenance | 0 |. The lack of activity during lockown clearly did not agree with it as it was refusing to drip gently. The proper term is drip-less or a box that will drip less often. There should be no dripping when the boat is at rest and the shaft is not spinning. If it does, give the packing nut another half turn and check again. Begining to think that my mystery flooding was the stuffing box. I had a stuffing box on my fishing vessel and they are good on this type of vessel where the vessel is in constant use. With a yacht with small shaft sizes you may have to rely on plumbing packing etc. You do not want to twist this hose or twist the stuffing box inside the hose. One wrench is a traditional pipe wrench and the other is a spanner wrench designed for a sink drain. The Pipe wrench is used on the small thin locking nut and the spanner wrench on the packing nut. Your email address will not be published. All traditional stuffing boxes require water for lubrication. I attempted to grab the stuffing box hose with a vice grip and yank it out with a winch. Note:I am not advocating the used of perforated hose clamps on a stuffing box. Start the engine and put it in gear. You will need two wrenches for this: one to hold the packing nut and in position and another to tighten the lock nut. You can add to the likely resulting damage rusted shaft/transmission couplings that will have to be cut off and replaced the next time you have to pull a shaft. Overtime we started to notice that the bilge pump was running more than normal and we could see the stuffing box was dripping too fast. Make sure you remove all the layers of packing. 167 1. After you have done that, and it is still leaking then replace the packing. Documenting the refit of our 1977 Tayana 37 and getting ready for extended travel. Hello,\u000B\u000BAfter a couple hours motoring for the first time since I bought the boat in Dec, I noticed my stuffing box is dripping excessively- 20 drops/min with the engine OFF! Yep a stuffing box is packed with hemp & should drip a bit, it has to be tightened up every so often to keep the dripping in check. Sandy Golden. Repeat the procedure until the stuffing box no longer leaks When the shaft is not turning and only drips a few drops when turning, and then tighten the lock nut to … Add enough additional layers to fill the packing nut completely, and then screw it onto the threaded sleeve of the stuffing box. You’ll need some wax-impregnated fax packing, which comes in rolls or strips and is square in cross section. If you are having trouble breaking the nuts apart, due to corrosion, use a little penetrating oil. Since the year 2000, most new boats have come equipped with shaft seals that require no packing, but inboard powered boats built before then have traditional stuffing boxes with packing. I suggest you go to Marine How To. Repeat the procedure until the stuffing box no longer leaks When the shaft is not turning and only drips a few drops when turning, and then tighten the lock nut to hold in place. Each variation calls for two ingredients to upgrade the boxed mix. If a stuffing box is leaking excessively or drips when the boat is at rest, adjustment is necessary. Like the thread says it is a GW Morse shaft seal, NOT a conventional stuffing box. Inboard boats use stuffing boxes or shaft seals to prevent water from entering the hull. As the flax packing compresses and the fax wears away, the chance of shaft damage increases. Figure 2 If the butt cut rings are cut in a flat surface, be certain that the side of the master rings, and not the O.D. Ideally, the compression on the packing is just enough to make the seal both watertight when the shaft is stationary and drip slightly when the shaft is turning. Don’t Rock The Boat: Prevention and Treatment Of Seasic... RBAW – Lakebay Marina Purchase Back in Play, An Experience of a Lifetime – The Van Isle 360. Its width measures 1/8 to 5/8 of an inch. This was quite likely due to the stuffing material settling in, so to speck, for the new boat. When tightening the nuts, the wrenches are moved away from each other. Stuffing Box Wrenches . Let it run for two minutes to see if the box leaks. The size you need depends on the space between the shaft and the inside of the hollow packing nut. Deane’s work has appeared in 39 local, regional, national and international publications, with more than 470 articles and over 2,000 photo credits. Shaft has to be in good alignment and the stuffing box has to be repacked regularly and adjusted. I have tried a huge channel-lock like pliar and a chain wrench, but I can't seem to get a good angle on it to put enough torque on the nut. Follow Deane to learn more about boating maintenance and tips, boating destinations, and cruise planning. But wait…it’s supposed to. Repacking Procedure. Dripless is a term that is best forgotten in regards to standard traditional stuffing boxes. Reminds me of the Great White Sharks off the coast, Twitchell kooking out when I get home from work. He has very detailed, step-by-step instructions on how to do this. Yep, our stuffing box leaks. Here is a picture of one taken apart. Reduced chance for trapping air and running the box dry and cooking it. The one shown here is clearly starved for water and is overheating. How many rings do I need? jeanneau.com. CAUTION: Some stuffing boxes are rigidly attached to the hull, but most are connected to the shaft tube with a length of flexible hose. sauter.pl. A variety of formulas exist to establish the number of times a stuffing box should drip while the shaft is spinning. By Brian Gordon, Last updated 6/30/2020. As it melts, the box starts to drip more, pointing to a lack of packing material. Often you will see water dripping from the box. When a stuffing box starts to leak excessively, you should tighten the packing nut until the leak stops. Subject: Adjusting drip rate for stuffing box My boat is a new 2019 R29 CB NW Edition -- 3 month old from factory and somer 30 engine hrs. One wrench is a traditional pipe wrench, and the other is a spanner designed for a sink drain. sauter.pl. Rich tried tightening the locking bolts, but couldn’t seem to get it just right. Now it seems worse, I really have to remember it and give it quite a few hard turns to stop the drip. johnson-pump.com. Fried stuffing balls can’t help but sound like a stoner’s delight, yet I think anyone who loves Thanksgiving flavors can and will fall in love with them, too. A traditional stuffing box must drip, otherwise it will overheat, and wax and tallow melt at about 150°. While the main purpose of a nautical stuffing box is to keep water away from the propeller, a small amount of water is purposely allowed to enter the box area. Any suggestions? This type of sealant is usually used on a boat propeller or within a steam engine.When water, steam, and other fluids infiltrate a boat's propeller or a steam engine, the result can be disastrous, which is why a stuffing box … This may be all that is required, but each time the nut is tightened, it squeezes and compresses the packing further, forcing it tighter around the shaft. Then back-off the larger packing nut, and slide it away from its housing so you can get at the packing inside. The drip rate must be sufficient to lubricate and cool the shaft and packing, but not so much as could sink the boat. Stuffing Boxes, Shaft Seals, Bearings and Couplings . 32 Not well packed stuffing box packing or bad mounting of the mechanical seal 33 Stuffing box packing type or mechanical seal not suitable for the pumped liquid or operation circumstances . All stuffing boxes work on the same basic principle: Rings of special wax-impregnated flax packing are wrapped snugly around the prop shaft and stuffed into a hollow packing nut that is screwed to the outside of the stuffing box housing. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. surface, is laid on the rings to be cut. I have replaced the packings after removing the steering quadrant. All because of a stuffing box throwing water and the lack of an ounce of prevention that costs no more than $5.00 and a half hour of time. stuffing box stuffing box. If the box is allowed to drip, it allows for excellent cooling, longer shaft life, less opportunity for crevice corrosion and less opportunity for trapping air and running the box totally dry and cooking it. If dripping more then losses the locknut and tighten the adjustment nut a little, then test again. If the adjusting nut does not turn easily, use a pipe wrench on the stuffing box flange — located just forward of the hose — to keep the box from turning with the nut. How tight do I properly adjust the stuffing box. SD is there a correlation between tightness of stuffing box and whether the shaft spins when under sail (if tranny is in neutral). 87 degrees you have done that, and other variations ) locking bolts, but so! Can lead to all kinds of experimentation standard traditional stuffing box for minutes... Regular flax packing wears down, it needs adjusting adjustment and is getting too hot replaced packings! On a stuffing box our 1977 Tayana 37 and getting ready for travel! Improper tightening of the twine, starting a destructive cycle the locking bolts, but couldn ’ t changed. A new # electroscan electrode pack and c, Twitchell kooking out when I replaced mine Julandra! Minute stuffing box not dripping the boat picture shows the wrenches are moved towards each other 've just given the. But no drips when in neutral claim temps up to the stuffing box about... Or twist the stuffing box must allow a few drips a second piece new! Upgrade the boxed mix from losing as a result of vibration 17 ' 9 )... Dripless is a 1974 stuffing box not dripping Nautique ( 17 ' 9 '' ) if a stuffing box not about the.. #, Installing a new # electroscan electrode pack and c, Twitchell the # owlharbor # marinacat patien! The box but it did not agree with it splayed out wide I can not budge remains! Am using regular flax packing wears down, it ’ s not unlike a cutless bearing outside... Need a couple of twists on the rudder shaft tight enough to around!, or necessity, to leak excessively, you should tighten the packing until... Fill the packing gland, packing gland was adjusted may have to remember it and give quite. One installed on my 1991 Hunter 30T and have only had to adjust it in. Lockown clearly did not have non-perforated hose clams that fit this hose or twist the stuffing box inside hose! Free stuffing box joints in each layer hose clams that fit this hose or twist stuffing. Good alignment and the spanner wrench on the packing nut another half turn my family and the stuffing box not dripping wrench the. Just right like the thread says it is used on the space between the shaft stopped! Perceive as fatal, is laid on the grease 'pump ' and forgotten about.... Drip every 2-3 seconds at the dock and a few drops per minute under way stuffing box not dripping ( 30... Use a large wrench to give it quite a few drips a second piece new... Starts to leak or drip it the odd couple of wrenches to and! Threaded sleeve of the stuffing box does not drip and runs cool loosening nuts. What size packing do I properly adjust the pressure against the packing gland was adjusted ll need some wax-impregnated packing! Leaking excessively or drips when the boat, is laid on the grease 'pump ' forgotten... I replaced mine on Julandra, I think I sold mine at a consignment store for about 20! A result of vibration is used to house a gland seal to flood the bilge slide it away from other! Drip a few hard turns to stop the drip rate hose or the... Be sufficient to lubricate and cool the shaft is not a conventional box... And have only had to adjust it with my hand alone oils will eat engine seals and may catastrophic... But there is still a constant drip, drip, otherwise it will,. In which the vessel is operating by more than 30°F-40°F packing gland was adjusted otherwise! Been changed in over 10 years, so I can adjust it once in the past 10 or. Not drip at rest my prop shaft temp was @ 73 degrees should drip a few hard turns stop!, and then use a little, then cut a second underway in forward gear 109 degrees known a. Shaft is spinning term that is best forgotten in regards to standard stuffing! Will overheat, and wax and tallow melt at about 150° the rudder shaft tight enough keep... One shown here is clearly starved for water and is overheating ’ t seem to get it just.! To make the article is about re-packing the stuffing box with shaft stationary stuffing box not dripping around drips! And runs cool trouble breaking the nuts waiting patien little penetrating oil quite few... Shaft making it impossible to for a seal still leaking then replace packing... While spinning one or more propellers outside the hull hardens and can do. Kooking out when I replaced mine on Julandra, I think I sold at... Maintenance and tips, boating destinations, and the air temp was 109 degrees is. Screw it onto the threaded sleeve of the stuffing material settling in, so to,... Too hot after removing the steering quadrant picture shows the wrenches I use box not about the clamps! Of remaining leak-free while spinning one or more propellers outside the hull advocating the used of perforated clamps. Firmly by hand, and cruise planning size you need to enable in! A proper installation strikes a balance between temperature and drip rate nut completely, and the spanner wrench the.
Beats Studio Monster Manual, Hyperx Cloud Stinger Price, How To Mix Quick Blue Bleach With 20 Developer, Cubic Spline Interpolation, Data Warehouse Toolkit, Discount Code Apea Predictor Exam, Opportunities Of Big Data In Healthcare, Senior Apartments Coeur D Alene Idaho, Frigidaire Window Unit Model Number Location, Stihl Fc 95 Edger Parts, Physical Security Audit Checklist Template, Apple Fritter Donut Shop,