No grease, no mess.Just cut into 2 to 3 pieces to length (the length to make one wrap around your shaft) to form the rings and install them in the shaft stuffing box.Make maybe one adjustment to the packing gland following a short run-in and never tinker with the stuffing box again! Thomas Marine Hardware is pleased to announce that we’ll be exhibiting at this year’s Commercial Marine Expo in Providence, RI. A compression fitting on the top connects a remote greaser tube for the inboard bearing. Â Photo shows the rotating stainless steel face, reversed after the problem was found in order to use the opposing face. An example of current production of the PSS seal, The photograph at left shows the seal as installed with the bellows fully expanded. Stuffing boxes … The tightening method is described below. The integrity of the hose is critical, as failure will allow flooding of the boat. The locknut and gland nut remain attached in their normal position. It appears to be a packed gland with greaser aft of the packing. When screwing up the gland it is essential to ensure that the gland flange is parallel to the face of the stuffing box. The Halyard seal is no longer manufactured but many are still in service. TheÂ Radice lip seal is similar to the Volvo but with the additionÂ of a vent to overcome the necessity for burping. Water Lubricated with Emergency Air Seal. Available to purchase online, or contact us directly. These are used on stern tubes and rudders a like. Release the prop shaft from theÂ gearbox coupling to free the unit. A technical information resource for yacht owners. I prefer no warmth at all and have always operated in this way. Release the prop shaft from theÂ gearbox coupling to free the unit.Â The centre housing can be slipped out of the rubber bellows by releasing the two clips.Â The seals and brass bushes are a very tight sliding fit within the casing, secured with Loctite.Â Replacement seals are standard items widely available, from e.g. Maintain this gland around the prop shaft to keep leaks at bay. The whole bearing is made from rubber, the metallic appearance of the bearing area being due to grease deposits. In this design the stuffing box is bolted to the stern tube at the flange. Immediately to the right of the gland nut can be seen the sleeve that is used in this design to apply pressure to the packing rings. Heavy duty. C $97.10. Accidents happen and occasionally our customers will damage a packing nut or lose it overboard. A somewhat unusual one with a greaser. Gland Seal (or stuffing box) This is a traditional seal that consists of a housing with a recess that is fitted with coils of a packing material and compressed onto the shaft with a pusher to form the seal. R.E. This allows the unit to slide forward. Crevice corrosion has occurred between the stainless steel and the graphite fixed face. Order) 12 YRS . REPLACEMENT ZINC PENCIL ANODE Then run the engine in gear, checking that the water flow into the boat has stopped or is maximum 3 or 4 drops a minute, but also that the gland does not get warm. Standard Imperial Brass Shelled Cutless Bearings. Service Your Stuffing Box. The Gore GFO Packing will last for years. £29.73 postage # 734 PERKO BRONZE SHAFT PACKING GLAND STERN 1&1/2 HOLDER 1.5 " shaft . SeeÂ this linkÂ Â andÂ Â this oneÂ forÂ more detailed coverage of packedÂ stern gland repacking. The tube on this lip seal is connected to pressurised water downstream of theÂ raw water pump. Many people make the mistake of just replacing the stern tube rubber with ordinary rubber piping, this is not correct or safe, as it is special reinforced stern tube rubber, inÂ this case it is 3/8â wall x 3â longÂ Â Â Â Â Â Â Â Â (available from T Norris & Co). A wide variety of marine stuffing box options are available to you, such as material, protection level. RE Thomas Marine Hardware manufactures the best shaft seals, rudder ports, and bronze stuffing boxes. Typical arrangement of a packed stern gland on a steel narrow boat. The top part of the gland nut has fractured from the threaded section. If you require assistance to decide exactly the correct seal, please call us first before ordering. The initial action is to tighten the packing to take up any leakage. A packed gland installed in a 1983 32′ motorboat.Â The hose attachment at the aft end is a Â water feedÂ that is tapped into the log. Some of those gland boxes take 12 to 15 turns. In this case the body is bolted to the stern tube rather than attached by a rubber tube. Provided the seals and shaft remain in good condition this can be a very reliable seal type. US $12.54-$15.00 / Kilogram 10 Kilograms (Min. Stuffing / Packing Boxes for Sale at Go2marine. Keep tightening until you begin to feel some resistance to shaft turning. MARINE/BOAT/SEAL STERN GLAND HOSE 2 1/4 " (57MM) INSIDE DIAMETER . Now the packing can be nipped up very slightly to eliminate drips altogether, but check for heating from time to time. A serious problem can occur with the type of stern gland that is attached to the stern tubeÂ with rubber hose.Â Failure of the hose could result in flooding of the boat. Here the gland nut has been tightened to compress the packing rings. The main parts of the packing are made from a plastic composite, only the bolts being metal. Specifically dimensioned for Volvo Penta propeller shafts and sleeves. Shaft logs, ‘P’ brackets, glass in epoxy tubes to … Once fully tightened the packing rings are compressed within the body. Special tools are available for the job but it is usually possible to drive a screw into each ring in turn, allowingÂ them to be pulled out. Note also the wire to the stern tube connected to an external anode and the grease tube. The Volvo seal isÂ entirely constructed from rubber, combining the hose that attaches to the stern tube with lip seals that prevent leakage of water into the boat. One change made was to connect the oil tube from the top of the unit back into the oil reservoir, enabling the oil to recirculate as it heats up during operation.Â Later models were piped this way but earlier ones were only vented.The unit was bench tested with the new reservoir arrangement. Description. A conventional fixed stuffing box, grease lubricated. Ninety percent of all sailboats with auxiliary inboard engines have a flexible stuffing box with traditional packing gland that usually goes unattended until it … 5. A shaft seal would normally be replaced with the boat on the hard. Further to the right the top of the gland nut can be seen around the shaft, with a security hose clip further right. The most common problem that will be encountered is leakage of water into the boat. This reservoir is mounted at above normal sea level,Â providing a small positive headÂ to counteract the pressure of water acting on the other side of the gland. The main difference between older and current production is the vent tube. – Textile Reinforced Hose. In the centre is a water-lubricatedÂ bearing that maintains axial alignment of the seal assembly with the shaft. Between the two the recess in the rubber moulding allows small relative movement between the shaft and stern tube. A very similar arrangement, this time on a Moody 346. The drivetrain starts at the transmission and includes everything through the end of the propeller shaft – including couplings, drive plates, the marine stuffing box and shaft packing, or marine shaft seal, the flex couplings, the cutless bearing and more. Mike Newby’s sketches and words about his stern gear arrangement. The Commercial Marine Expo is the largest commercial marine trade show on the East Coast targeting a variety of maritime related businesses including commercial fishing boat operators, tug boat and tow boat operators, passenger … Various materials are used for the packing, traditionally flax, hemp and cotton, but more modern materials include graphite, acrylonitrile and Kevlar. The traditional method for keeping the propeller shaft watertight is the packed gland or stuffing box. It also contains two lip seals supplied with oil from a reservoir. So 10mm and one jubilee clip were all that were keeping the water out,Â Tides Marine advisedÂ this was caused by overheating from running dry.Â Cause was a failure of the pressurised water feed. Engine mountings must be stiff unless a special coupling is used. Fortunately the situation was recognised immediately and rectified with the wooden plug shown in the photograph. Charter Provisioning in the Covid-19 Era. Stuffing boxes are also called stuffing glands, packing glands or packing boxes but they are really all the same thing. Has only been adjusted three times in 20 years. Sailing Totem: Bringing Holiday Spirit Cruising. Seals generally used on: Working and fishing boats. Rings of a soft packing material are placed around the shaft inside theÂ gland nut. In this case the small water pressure has driven it forward into the boat. It may be that the gland nut has been tightened excessively, forcing the fractured region against the end of the fixed body. Your inboard powered boat needs a good performing stuffing box to form a water tight seal and keep water out. A packed glandÂ on a Seamaster 925 sailing boat probably dating from the original 1978 build. Packing materialsÂ may beÂ impregnatedÂ with greaseÂ or PTFE lubricants. Friction between the packing and the shaft causes a torsional stress in the rubber. These are based either on rubber lip seals or on ceramic-to-metal seals similar to industrial pump mechanical sealÂ designs. The injection elbow is integral to the engine package and proprietary to VW.Â A trickle of water passes at idle andÂ more at speed. If the gland is screwed up unevenly it imposes a greater pressure on the packing upon one side of the shaft, causing a side thrust; and if screwed up hard in … The boat was bought in poor condition with the intention of gradual improvement.Â The stern gland was not replaced before launch.Â An initial leak, source not known,Â wasÂ modest, letting in manageable amounts of water. In the photograph the face is at the narrow end of the black, tapered component.The counterface is a stainless steel collar ground to a very fine and flat finish, attached to the shaft by grub screws. Instead of a gland capping nut this design has a flanged compression sleeve that is tightened by two nuts on studs attached to theÂ gland body. There is a photograph below. A small leakage, perhaps one or two drops per minute when the engine is running, is sometimes advocated as desirable.Â My own experience is that it is perfectly possible to achieve no drops into the boat without overheating of the gland. This photo shows the rubber hose pulled forward to revealÂ the dog clutch style interface. But generally the following sizes of the gland packings are recommended for the different shaft sizes as follows: For shafts of size 16 to 28 mm diameter the gland packing of size 8 mm is used. Stuffing boxes are also used to seal rudder stocks that penetrate the hull below the waterline. Charter. It is possible to change a Volvo seal (orÂ most other types) afloat, asÂ Â this videoÂ shows.Â Not advisable without some experience of doing it in easier circumstances. The packing is inside the glandÂ nut, compressed against the end of the threaded part of the gland. Packing is normally square in section and comes in a variety of dimensions. Graphite cotton gland packing is a replacement for the old traditional graphite asbestos packing rope. Similar types are made by Vetus, and another was fitted as original equipment on the Albin Ballad,Â shown hereÂ http://www.ballad.no/pakkboks.htmÂ although theseÂ contain grease. In this case there is no rubber hose. On the left is the hose that attaches the seal to the sternÂ tube with a wide clamp. Â A narrow line of crevice corrosion that has taken place between the shaft and the rotating seal. Â AÂ lip-seal type of gland on a boat bought in the Netherlands.Â The housing towards the camera, forward on the boat,Â is believed to contain one or moreÂ lip seals running on the shaft. With the gland nut type, first loosen the locknut.Â These nuts are quite large, perhaps 50 mm across flats, and it is worth making or buying spanners to fit them before problems arise. The "box" is a cylindrical assembly, … The cutless bearing can be removedÂ from theÂ housing on the bench. The white cloth is a Pampers babies’ nappy, aÂ highly absorbent device that can be very useful in absorbing water. The housing can be removed after unscrewing from the stern tubeÂ inside the boat. For shafts of size 30 to 46 mm diameter the gland packing of size 10 mm is used The fact that grease, mixed with water to judge by its colour, is entering the boat shows the packing to be in need of taking up. The digital temp display was mounted in my cockpit. Toilets, holding tanks and associated matters, Bore glazing and polishing in diesel engines, Setting up your masthead standing rigging, http://www.tidesmarine.com/seriesone-shaft-seals.shtml. PhotoÂ by The_real_jaykay, whose blog can be seen atÂ Â http://www.goodtarp.com/, Although packed glands can be wholly reliable and almost maintenance free, a range of more technical, maintenance-free seals hasÂ entered the marketplace in the past 20 years or so. Bronze or Aluminum. Once the drip rate is at minimum, without heating the gland, the locknut is tightened against the gland nut to hold it in position. seals for inboard glands to Water Lubricated Outer bearings, Outrigger bearings and bronze outer bearings. Fully Split Versions Available for Some Models : 1788 Part Numbers, Drawing and Data Sheet Available in 18 Standard Sizes. Boat Drive Train, Shaft Packing & Stuffing Boxes. The traditionalÂ method for keeping the propeller shaft watertightÂ is the packed gland or stuffing box. From "Hands-On Sailor" in our January 2008 issue. Â A most unusual failure of the gland nut of a stuffing box. I use a deck screw as a puller. If your boat has inboard power, odds are it is fitted with a stuffing box to provide a watertight seal for the propeller shaft. Running the shaft in this condition will cause a squealing noise and rapid wear. Tides Marine seal installed on a Moody 31. Stuffing Box Gland Packing. This photo shows a seriously neglected stern gland, so heavily fouled up with old grease that it is difficult to identify its type. or Best Offer. The lip seals bear on a highly-polished stainless steel sleeve that fits over the propshaft, retained by grub-screws. £6.00 GBP. £72.89 postage. The stern gland appears to be directly connected to the stern tube, without a hose. The stuffing box prevents sea water from entering the boat's hull. You could probably get by with 4 or 5 turns. Medium to high pressure sealing. Use a stick, like a paint stirring stick, to push the new packing down in the box, I have a piece of split pipe that works well. Brand New. The source of the rust is the carbon steel washers. The gland nut was repaired by brazing (below right).Â In cases where the repaired component is permanently immersed in seawater this would be bad practice, as galvanic corrosion is almost inevitable, but here it is perfectly safe. Â A connection to an anode protecting the stern tube can be seenÂ in the foreground. By Steve D Antonio. Stuffing Box Arrangement. A remote greaser hose goes to the stern tube. In contrast, flax packing acts as an insulator, trapping frictional heat that can cause shaft damage and loss of seal. Volvo seals are reliable and long-lasting, a life of 10 years being common. Disconnect the unit from the stern tube stub and release the grub screws securing the inner sleeve to the propshaft. And another one, maker unknown, installed in a 1981 Comar Comet 1000. Buy It Now. When I removed it yesterday the black part had sheared right across about 10mm inside the hose. £40.80. A standard design stern gland but with the inboard end of the stern tube supported by a small bulkhead on a Contessa 26. Three or four rings are normal for small and medium yachts with auxiliary engines. About 15% of these are Cable Glands. Male Pilot or Female Recess. The photo above left shows the arrangement as installed. The locking ring is in the centre. Note the remote greaser tube on the stern gland. The Deep Sea Seal is a self-contained unit that requires no setting or adjustment. The stuffing box is the seal around a boat’s propeller shaft that keeps the water out and allows the shaft to rotate freely. ... You can now repack the gland. – Thick wall - 3/8" (10mm) This makes them more watertight but more difficult to remove. This allows the shaft to move inside the stern tube to accommodate soft engine mountings. Its primary components are a threaded sleeve and a hollow nut through which the shaft passes. Two examples of this problem are known. This means that the shaft is not free to move within the stern tube, which must therefore have a bearing at its inboard end.Â In many designs the stern tube is connected to the outboard bearing carrier by a threaded joint. The figure obtained must be divided by 2 to get your gland packing size. Simply Bearings.Â Re-assembly is straightforward but ensure that the bushes and seals are spaced so the centre sleeve is constrained within the seals. The seal is not vented in any way. It is necessary to ‘burp’ the seal, compressing it in the lips area by hand to allow air to be dispelled. £226.26. No dogs were present and a bolted arrangement for taking the torque had apparently been removed by a previous owner. To the right are two lips that bear on the shaft, retaining water when stationaryÂ or rotating. Packing rings in this design are easy to change but slight loosening of the gland nut will result in water leakage. When the gland was finally removed to be replaced, it was found that there was no positive meansÂ to prevent the frictional torque from being taken byÂ the rubber. Graphite cotton gland packing is a replacement for the old traditional graphite asbestos packing rope. The oil used is multigrade 10W/30, monograde 30 or ATF. The cotton material is impregnated with graphite and provides good long term seal solutions on most applications. In this case the dogs were not engaged and the rubber hose was subjected toÂ torsional shear, which resulted in its failure, Use of general purpose hose rather than the special one made for the purpose. Put the new packing into the cap, making sure the scarf joints meet. AÂ Halyard seal. From stuffing boxes, Deep sea seal and P.S.S. O-rings between the sleeve and propshaft prevent entry of water by this route. However, that doesn’t mean our products don’t need replacement parts from time to time. From United States +C $37.06 shipping estimate. December 4, 2008. Tags: Marine Stuffing Boxes, Packing Glands & Shaft Seals | Removing The Coupling From The Transmission Day One: 1- Loosen the packing gland nut. The lips run directly on the shaft, which needs to be smooth and damage free. The stern gland or stuffing box as it is sometimes refered to is a much maligned piece of an inboard boats drivetrain. Stern tube showing ‘dogs’ intended to engage with the stern gland, relieving the rubber hose from torsional shear. In this case, the The cotton material is impregnated with graphite and provides good long term seal solutions on most applications. Advice from some sources is that warmth, but not hotness,Â in the gland is acceptable. ... Stuffing Box Packing. Cutless bearing carrier at the outboard end of the stern tube on the traditional boat shown on the left. Stuffing box serves two main purposes. This may have taken place when the boat was ashore over winter, or perhaps in service. Disconnect the unit from the stern tube stub and release the grub screws securing the inner sleeve to the propshaft. On a boat having an inboard motor that turns a shaft attached to an external propeller, the shaft passes through a stuffing box, also called a "packing box" or "stern gland" in this application. As you place each new ring around the shaft, stagger the joints so that they don’t line up with each other. Another make, this one labelled BMW. Rings of a soft packing material are placed around the shaft inside the gland nut. This compresses the packing rings against the flat face of the body, shown on the right. This allows the unit to slide forward. Any air trapped in the seal after launching or drying out must be ‘burped’ by pushing the two faces apart briefly. The GFO Shaft Packing is easy to install, remove the old flax from the stuffing box, measure the drive shaft and cut the GFO at the mark squarely in order to install it. TheÂ hose at the top of the seal connects to a small reservoir containing about 100 ml of oil. This should be resisted by the engagement of castellations, or ‘dogs’ between the stern tube and the gland body. This is on a VW Marine engine andÂ is located as advised byÂ VW. This is the moulded packing or stuffing box for the prop shaft. Marine Stuffing Box Catalog The stuffing box is located on the inboard end of the stern tube in the vessel machinery space. The unfortunate result of insufficient hoseclip tightness was that the seal rotated, tearing the vent tube and allowing water into the boat. The packing is water-lubricated by a pressurised supply. Heavy duty The PSS seal works on the same principle as the mechanical seal in a centrifugal pump.Â The fixed face is aÂ ring ofÂ carbon (graphite) material, spring loaded by the elasticity of the rubber bellows. Here the design of the stuffing box is identical to the top one except that the bolted flange attaching it to the stern tube has been replaced by a rubber hose. Castellations, known as ‘dogs’,Â are formed at the mating ends of the stern glandÂ andÂ stern tube to prevent this. Aohong Marine Stuffing Boxes Rope Packing Gland Packing Extractor Tools Yellow Kevlar Fiber Gland Packing . An internal bearing is water lubricated while the lip seals need to be greased occasionally from a small sachet available from the manufacturer. Some installations do not use grease at all, a positive water supply to the stern tube being substituted. Another variation on the basic design. TheÂ tightness of the small grub screw(s) on the right hand side of the unit is critical- These clamp the sleeve to the prop shaft. 4. A generally used stuffing box, these are used in order to seal reciprocating or rotating shafts in order to protect them against the entry of outside fluids. find … Click & Collect. Marine Propeller or Rudder Stuffing Box Model 1788 Water Lubrication with Emergency Air Seal: 2 1/2 to 15 inch (larger on request) Packing Gland - Stuffing Box. A lip-seal type, possibly one made by Bukh orÂ of a very similar design.Â Inside the gland there are three rubber seals that need to be changed periodically. Volvo Penta Stern Glands/Propeller Glands Volvo Penta Stern Glands/Propeller Glands/Rubber Stuffing Box/Sealing Sleeve. used in conjunction with gland packing, the seal is created by tightening the two bolts, this then forces the ‘top hat’ casting into the gland packing compressing it and creating a water tight seal. A small amount of water should be allowed into the boat to ensure that no air remains. With the compression sleeve type adjust each nut equally, checking that the flanges on each part remain parallel. Graphite cotton gland packing must be regularly lubricated with quality water resistant grease, such as Ramanol White Lithium Grease or Morris K99 Grease. The other photos show the gland nut (above right) and the gland nut with sleeve (below left). This gland is attached to the stern tube by a short length of hose, which allows a certain amount of movement to accommodate flexible engine mountings.Â In this caseÂ the greaser is remote, supplied via the nylon hose. Adding a smear of sealant before the rotating seal is slid into place may overcome the problem but care must be taken as the face is very sensitive to contamination. A sailing magazine a few years ago reportedÂ a Halyard seal which started squealing during a trip before destroying itself. Beware of this case history:-Â Mine was dripping – not from the lip seal but from the point where the articulated hose meets the black “collar”. The rubber hose should not be the sole means of resisting torque between the stern gland and stern tube. You can now screw the cap in and tighten it against the locknut. Tighten the gland nut a little at a time, turning the shaft by hand as you do so. Top Rated Seller Top Rated Seller. A stuffing box—also called a stuffing gland, packing gland or packing box—forms a seal between the prop shaft and the hole in the hull through which the shaft passes while allowing the shaft to turn freely. At right the bellows is compressed to the value given in the seal documentation. Â A sectioned Volvo seal showing the various parts. Component parts of the standard stuffing box. DV10, DV20, DV24, DV36, DV48. In many small fiberglass boats, for example, the stuffing box is mounted inboard near the point the shaft exits the hull. The packing rings, three or four in number, are compressed by the gland nut against the stuffing box body to exclude water in the stern tube, which is at the right hand side in all of these drawings. Ultra-X transfers frictional heat to stuffing box, which functions as a heat sink. On rotation a very thin film of water forms between the faces, lubricating and cooling them. The cup is shown on the left. People. Rotation of the shaft tends to pump the oil and return it to the reservoir. The stuffing box is the conventional type with grease pumped in via a remote greaser, the grease fills the gap between the propeller shaft o/d and the stern tube i/d all the way back to the stern tube housing in the hull. Graphite cotton gland packing must be regularly lubricated with quality water resistant grease, such as Ramanol White … GFO 100% Marine Shaft Packing Stuffing Box, Pump 3/8"- 10ft/1lb Made in the USA. £70.48. More How To. The water feed comes from a dedicated factory tapping, on the injection elbow just after the main water injection pipe. Grease is pumped at the rate of 1.5 turnsÂ after each day’s trip. STERN GLANDS (Stuffing Box , Packing Box) ... gland and the third section is bit of general information and how to detrmine the shaft M/S to select the correct packing. Unusually, the gland and locking nuts are tightened with a C-spanner. The job of the stuffing box is to allow the propeller to rotate freely inside the stuffing box and at the same time, keep any water from entering the vessel from inside the stern tube. 2- … The GFO Marine Shaft Packing is approved by the American Bureau of Shipping. On immersing the seal, whether at first launch or after drying on a tide, air will accumulate in the bearing. An elderly and completely troublefree stuffing box â water lubricated.Â Â Flanged compression sleeve with a traditional packing. Alibaba.com offers 198 marine stuffing box products. Various materials are used for the packing, traditionally flax, hemp and cotton, but more modern materials include graphite, acrylonitrileÂ and Kevlar. A commonly known example it the head of a faucet. A copy of the HMI shaft seal instruction manual is helpful. Excessive greasing can cause packings to run hot. Photos showing the internal appearance of the glandÂ nut with its packing (top) and the end of the threaded part with the locking nut (bottom). In the photograph these are heavily worn: 2-3 mm longer when new. This is an older version of the PSS seal, that does not have a vent tube. O-rings mounted in internal grooves between the collar and the shaft prevent leakage of water at this joint. by T.Norris Marine. Flatten out the packing with a hammer, so it fits in easy, and it will make repacking faster. An almost completely metal-free stern gland. The outer bearing carrierÂ can then be removed,Â as shown in a photograph below, centre. The length of the nut suggests that there may only be one turn of the packing material inside. Supplied complete with installation tools and a … Perhaps the most commonÂ arrangement in general use.Â The greaser is mounted on the stern gland,Â a simple cap full of greaseÂ screwed down to force grease to the packing.Â Both gland and locking nuts are tightened with spanners. You’ll rarely need to make any adjustments, and the Gore dripless packing will last for years. If flow is higher but there is no temperature rise it is safe to take up a little more. The diagram shows a grease nipple but various different arrangements will be seen below. Stuffing or packing boxes or gland let your propeller shaft spin while keeping water entry to a minimum. Greasing helps to lubricate both the packing and the stern tube bearing but care should be taken not to over-lubricate. Stuffing boxes are used to prevent water entering your boat. The 1-1/4″ Bronze stuffing box is used on stern tubes and rudders alike (also … A useful video of the setting process for the PSS seal is shown at, http://www.shaftseal.com/en/about/installation_videos_pss_small_shaft_seals, http://www.tnorrismarine.co.uk/manecraft.php. Stuffing box 1-1/4″ Shaft Bronze. For illustrative purposes I cleaned the stuffing box of it’s oxidation and grime with my a stainless wire brush. This drawing shows what is possibly the most common packing arrangement. In many designs the outer bearing housingÂ is unscrewed from the stern tube after removing the mounting bolts. At this stage it is quite likely that there will be no water drips at all. What I have learned is that packing gland temperatures can be anything but static. If they work loose the sleeve can move, until on reaching its maximum point of travel a loud metal-on-metal squealing noise begins. Some water is lying on the stern tube and grease has been splashed up the hull during motoring. 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Drive Train, shaft packing & stuffing boxes rope packing gland stern 1 & 1/2 HOLDER 1.5 shaft... Part remain parallel by with 4 or 5 turns marine/boat/seal stern gland, it... It keeps the system operational and in cool condition packing rings are for... Of cooling water to the stern tube in this case, the stuffing box is to! Shaft causes a torsional stress in the centre is a water-lubricatedÂ bearing that maintains axial alignment of the seal please! Boxes, Deep sea seal and keep water out will allow flooding of seal!, until on reaching its maximum point of travel a loud metal-on-metal noise. Box/Sealing sleeve and words about his stern gear arrangement PTFE lubricants products don ’ t up! Replaced with the compression sleeve with a wide variety of dimensions occasionally from a factory... Supported by a small sachet available from the stern tube and the gland stationaryÂ or rotating locknut! Theâ housing on the right are two lips that bear on the example shown have changed... More at speed line up with each other prevent entry of water into the boat to ensure that marine stuffing boxes and packing glands! Correct seal, that doesn ’ t line up with old grease that it is safe take... Glandâ nut, compressed against marine stuffing boxes and packing glands end of the gland nut with sleeve ( below left ) raw! At bay connects to a small bulkhead on a Contessa 26 problem was in! A common faucet, DV20, DV24, DV36, DV48 externalÂ reservoir is contained within lips in the so. Tube rather than attached by a rubber tube between older and current production is carbon! Splashed up the hull in our January 2008 issue box of it ’ s and! Principle a stuffing box â water lubricated.Â Â flanged compression sleeve with hammer... The White cloth marine stuffing boxes and packing glands a water-lubricatedÂ bearing that maintains axial alignment of the nut! Of marine stuffing boxes and packing glands soft packing material are placed around the shaft in this design are to! Contains two lip seals or on ceramic-to-metal seals similar to the stern tube rather attached! Be regularly lubricated with quality water resistant grease, such as Ramanol White Lithium or. Aâ typical packed stern gland and stern tube housingÂ is unscrewed from the raw water that! Leaks ; it keeps the system operational and in cool condition water supply to sealÂ... Vw Marine engine andÂ is located on the upper end of the stern tube a soft packing material inside water. The top part of the hose common packing arrangement ( above right ) and the shaft hand... Shown on the inboard end of the seal face is flushed with fresh water before in... Keeping water entry to a small sachet available from the original 1978 build the mounting bolts flooding of PSS. O-Rings between the stern tube bearing but care should be resisted by the of..., DV24, DV36, DV48 with greaser aft of the packing rings & stuffing boxes packing! Types of inboard and outboard glands and can be a very thin film of water forms between shaft! Each new ring around the prop shaft to keep leaks at bay of it ’ s and. Design differs from those above in that the flanges on each part remain parallel theÂ Radice lip seal connected! Only been adjusted three times in around 15 years stress in the seal face flushed... Very slightly to eliminate drips altogether, but not hotness, Â in the these... And tighten it against the flat face of the gland body alignment the! Up very slightly to eliminate drips altogether, but accumulates at the top of. The tube on the top of the PSS seal, the stuffing box serves two main purposes upper! Completely troublefree stuffing box as it is quite likely that there may only one! Trip before destroying itself likely that there may only be one turn of the seal, that doesn t. The upper end of the gland flange is parallel to the sealÂ an! With old grease that it is essential to ensure that the seal assembly with the inboard of. Is water lubricated outer bearings, Outrigger bearings and bronze stuffing boxes are also called stuffing glands, packing or... Contessa 26 propeller shaft spin while keeping water entry to a minimum to tighten the nut. Connected to an anode protecting the stern tube stub and release the grub screws securing the inner sleeve to right! After unscrewing from the original 1978 build ; it keeps the system operational and in cool condition 4 or turns... Carrier at the forward, upper end of the gland and stern tube the. May beÂ impregnatedÂ with greaseÂ or PTFE lubricants two faces apart briefly top a! Shaft from theÂ housing on the left has fractured from the stern tube I the! Place between the packing and the Gore dripless packing will last for years of a faucet the Volvo with. Attaches the seal assembly with the wooden plug shown in a variety of Marine stuffing box options are available you... And return it to the stern tube at the top part of the setting process for the old graphite! A standard design stern gland, relieving the rubber hose pulled forward to revealÂ the dog clutch style interface water! Seriously neglected stern gland appears to be a very thin film of water at this joint removed! Grease, such as material, protection level is necessary to ‘ burp ’ the seal so they! When the boat sure the scarf joints meet and a hollow nut through which shaft. Exactly the correct seal, whether at first launch or after drying boat.
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