On my last boat, a hunter 28, I installed a PSS shaft seal in 1997 to replace the stuffing box. This seal will eliminate shaft wear and minimize corrosion. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. There are a number of manufacturers of dripless shaft seals and a variety of designs. Adjust it of course, but it may be adjusted to the end, now replace it. Move slackened jubilee clip upto bellows and resecure. Post Cancel. A PSS shaft seal before fitting. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Most of the units use what’s called a face-type seal, with flexible bellows attached to the stern tube (or stuffing box collar) that presses a fixed carbon/graphite flange against a rotating stainless-steel rotor which spins with the prop shaft, creating a seal between the … Frequent Contributor. Under the compression sleeve are three or more rounds of packing material. Join Date: Apr … The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Here we show you how to prepare and clean the shaft before installing the rubber bellow of the PSS Shaft Seal. The PSS Shaft Seal is a mechanical face seal that is created between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange. The carbon ring is placed under tension by the rubber bellows against the stainless-steel ring, which is clamped to the shaft. The yard foreman assigned to my WO says he sees them last up to 15 or 20 years and … Mark this position on the shaft as the “neutral” position with a marker or a piece of tape on the shaft just in front of the rotor. log. Does anyone have good advice regarding shaft seals These PSS seals are 6 years old and were adjusted in July of 2019 about 60 hrs running time since. I replaced the PSS shaft seal on my'98 Sabre 362 this past spring. Certified by Bureau Veritas, ABS and RINA: Boat builders, boat yards, engineers and owners recognise the advantages and value of installing the PSS shaft seal as it eliminates the maintenance, constant adjustment and cost associated with traditional packing glands. This is a cut-a-way view of the PSS Shaft Seal. The PSS Shaft Seal is the highest selling of all shaft seals in the world. The PSS Shaft Seal is the #1 selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders and boatyards. The seal does not have the strength to move the shaft out of straight and thus it makes for inserting feeler gauges much easier as it keeps the perfect light pressure on the flanges. The market leading shaft seals have earned its place to be installed as standard equipment by many of the worlds’ most reputable boat builders/yards. Boat builders and boatyards recognize the advantages and value of installing the PSS as it eliminates the maintenance, … PSS Shaft seal When I fitted mine I used 2 jubilee clips on the shaft to make sure that the bellows remained as fitted. Certified by Bureau VERITAS, ABS & RINA; Boat builders / yards recognise the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & … Our Price: $447.99 . I highly recommend them.....of course now with all that being said with my luck I'll be repairing/ replacing them. Their standard is based on time, not engine hours as the bellows are under pressure and over time they loose their elasticity. There are a lot of things that can lead to catastrophic failure if the seal is not installed and maintained properly. The stainless steel rotor is fit on the shaft in front of the carbon flange. I replaced the PSS shaft seal on my'98 Sabre 362 this past spring. The gap between the two clips on the … ProductsPSS Shaft Seal Packless Sealing System The PSS Shaft Seal is a mechanical seal that uses a self-aligning carbon-graphite stator to ensure a 100% watertight seal with proven reliability. I have never heard of nor researched Chatfield shaft seals. Related Items: ACME 5999 WEEKEND SAVER TRADITIONAL PROP PULLER KIT 1-1/4" ACME 2263 4-Blade 15" x 14.25" Nautique Boat Refurbished Propeller - Acme-2263R Thru Hull Faria Transducer for 2003-11 Nautique Depth Finder Gauge - Part 1254 RUDDER SHIM Our Price: $199.00 . The two boats I have now have PSS dripless shaft seals. Slide the stainless steel rotor down the shaft until it just TOUCHES the carbon. Benefits of PYI Shaft Seals / PSS. The stainless … The downside is you sacrifice a lot of redundancy and durability when you install a dripless system in your boat. There is no bellows to tear or give way. Aligning boats with PSS … We put in "PSS" shaft seals many many years ago and but side of an adjustment now and then they have worked flawlessly. The hose flexibility combined with its compression compensates for movement of the shaft when … The leader of all shaft seals, PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4″ (20mm) to 6″ (150mm). Two years ago after having the stuffing box adjusted 3 times in a year and running out of "room" for further adjustment I threw in the towel and had a PYI Inc PSS dripless shaft seal installed in my C30. The PSS Shaft Seal is the #1 selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders and boatyards.. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to … If you hear a high-pitched squeal from the PSS shaft seal during operation, the seal may not be getting water. These type of seals are unaffected by engine motion or vibrations. If you hear a high-pitched squeal from the PSS shaft seal during operation, the seal may not be getting water. PYI produces a product marketed as the PSS Shaft Seal and Nautical Specialties offers a line of LasDrop seals, including the two face seals, Gen II and the Bellows Seal. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Boat builders and boat yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. The market leading shaft seals have earned its place to be installed as standard equipment by many of the worlds’ most reputable boat builders/yards. The PSS Shaft Seal is the first selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders and boatyards. Take a look for instance at the Lasdrop Gen II dripless shaft seal. On my last boat, a hunter 28, I installed a PSS shaft seal in 1997 to replace the stuffing box. I did increase pressure once and this was made easier by the jublee clips. After more than 20 years with that bellows, a friend pointed out that PYI … Lip seal units employ a synthetic rubber sleeve encased within a metal housing. Boat builders and boat yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. Adjust so the PSS runs true with the shaft. … A little dripless shaft seal background There are two primary types of dripless shaft seals – lip seals and face seals. A dry bilge is dependent on steady pressure being applied to the mating surfaces between the SS Rotor and the … The stationary carbon flange is attached to the vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. Traditional bronze stuffing boxes are now to fail too, … 12. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. It is critically important that TWO set screws be used on on top of the other to lock them into place. Take a look for instance at the Lasdrop Gen II dripless shaft seal. Note the water injection nipple at the top of the carbon ring. Servicing the PYI - PSS Shaft Seal PYI recommends the PSS bellows and the two “O” rings inside the stainless steel rotor (SS Rotor) be changed every seven years. Simply slacken the one nearest the bellows slacken the bellows clip push bellows towards stern tube and secure. B. Spray or mist during operation after the break in period: If you should experience any spray or misting during high-speed operation (after break-in … PYI Shaft Seals are the number one selling brand in the world, used by more boat builders – including Alden Yachts, Wellcraft, Bayliner, Donzi Yachts, Ocean Alexander – than any other brand or type of seal or packing gland. The seal (which fits snugly against the shaft to prevent water entry) remains stationary with the shaft rotating inside it. Comment. 09-MAR-04. Lip seal units are a less expensive than face seal models and while they have a fair amount … These seals automatically compensate for face wear, and unlike gland packing, do not require any adjustment. CAUTION: If the seal has run dry use caution! The PSS Shaft Seal is also recognized as the premier retrofit (aftermarket) seal on the world market. The PSS acts as a third hand and does this for you at just about the perfect pressure. My former 1996 31 Blackfin with twin Cummins 370 had Tides dripless shaft seals. Boat builders and boatyards recognize the advantages and value of installing the PSS as it eliminates the maintenance, … Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to … The concept of dripless shaft seals is great, you get a dry bilge and less vibration due to the shaft seal being able to “float” on the shaft. Use Tides Marine SureSeal or Lasdrop … Certified by Bureau Veritas, ABS & Rina; Boat builders / yards recognise the advantages and value of installing the PSS as it eliminates the maintenance, constant … PSS Shaft seals are also known as dripless seal systems. I'm not the original owner, so we suspected it could have been the original install. The Starboard seal leaks at speed 16oo and above on sea trial. … Be sure to use new set screws every time that you adjust. PSS recommends assembly replacement at 6 years and these are right at 6 years old. CAUTION: If the seal has run dry use caution! Brad & Sharon Lady Jake 1985 4550 EH 700TI /Twin Disc 502 Anacortes/La Conner, Wa. Tighten all the hose clamps around the stern tube and the carbon. Our Price: … I'm not the original owner, so we suspected it could have been the original install. 1" dripless shaft seal. The PSS Shaft Seal is the highest selling of all shaft seals in the world. Used with safety collar 2282a (sold separately). Usually a square tube shape and made from flax, these materials sit in a sort of cup arrangement and wrap snuggly around … www.shaftseal.com From what I've learned from researching shaft seals and the input on this thread, don't replace with PSS. The PSS and the Bellows Seal rely upon a bellows-style hose to provide the compression needed to create a face seal. jimbo88. No Shaft Wear The Manecraft seal rotates with the propeller shaft, and therefore cannot cause wear of the shaft surface. The faces (stainless steel rotor and carbon) may be very hot. Not all dripless shaft seals use bellows like PSS. PYI Inc. | PSS Shaft Seal The PSS Shaft Seal is a mechanical seal and is installed as standard equipment by many of the worlds most reputable boat builders and yards. Boat builders and boatyards recognize the advantages and value of installing the PSS as it eliminates the maintenance, … PSS Shaft Seal. Spray or mist during operation after the break in period: The dimensions provided in the “Bellow compression chart” are average figures and are provided as a … Aside from these benefits, the PSS Shaft Seal helps to eliminate … The factory set screws come from the factory with thread locker already applied. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% watertight) and wear to the propeller shaft. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. At that time, I don't know that there were any guidelines about ow often to change the bellows. You need to press/hold the two flanges together anyway, but not too hard, in order to check the alignment. The o-rings should seat in the slots well and no grease or oil should be used when sliding the rotor onto the shaft. What do you do IF the dripless shaft seal drips? It is the off white/yellowish stiff on the set screw threads. Solved the problem and also the spray/mist that occurs with excessive dripping of the stuffing box. Never had a problem with them and IMO Tides has the 2nd largest sales in dripless seals….PSS shaft seals being #1 in the industry. Dripless Shaft Seals – How They Work. The faces (stainless steel rotor and carbon)may be very hot. Review and correct plumbing to the seal. Review and correct plumbing to the seal.
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