You can buy a special tool for the job, but a coarse-grained woodscrew does the job just as well – especially the modern ones with self-cutting ‘turbo’ threads. C $106.88. How to repack a traditional stuffing-box type stern gland. Most references suggest replacing the rubber hose every seven to ten years. The thin nut, on the left, is the locking nut. Edson's Stuffing Boxes combines a rudderpost bearing with an above-the-waterline stuffing box for rudderpost sizes ranging from 1” (2.5 cm) diameter to 4-1⁄2” (11.4 cm). LUBRIPAK™ Packing. Available in a wide range of materials. This month we get aboard three new outboard-powered day boats – inland and coastal – plus we deconstruct the calculations that define the limits of your sailing boat's performance. Brand New. After repacking the stuffing box, use two wrenches to jam the locking nut against the adjustable packing nut. When repacking the box, tighten the screws evenly in the shut off, but be sure to loosen the screws before the well starts to pump. Eventually this site will go the way of the buggy whip. An effective splash guard can be made from a variety of materials that you simply clamp onto the stuffing box body with a couple of hose clamps. See new links below. From United States +C $37.06 shipping estimate. Top Rated Seller Top Rated Seller. 176-4 rubbers when replacing the box. Curl one of your cut lengths into a ring around the shaft and push it into the stuffing box. Please do not use the wrong hose. Available in #0 and #1 sizes, both tools include a … o (C) Be certain that all packing is … You must grab the gland nut and locking nut in opposing directions, to reduce the torque on the stuffing box hose. This Buck Algonquin hose sized for a 1 3/4" shaft log can be purchased from Hamilton Marine for about $9.00 or less. I used a piece of 1" diameter stainless steel as my makeshift prop shaft to complete the picture and present this as it would look inside a boat. You can now screw the cap in and tighten it against the locknut. 2.Remove the old packing. The rubber hose connects the bronze stuffing box to the boat and must be replaced periodically. One wrench is a traditional pipe wrench and the other is a spanner wrench designed for a sink drain. Nothing went as expected. Resist the temptation to simply remove a few rings of packing that are near the top of the stuffing box. Boat Drive Train, Shaft Packing & Stuffing Boxes. Replace both No. Repacking equipment during a system outage is often performed under time constraints. A pair of wrenches is a gentler way to loosen it. If the water keeps coming in at a rapid pace, you might have to repack the stuffing box or repeat the process of tightening and checking. This old format has run its course and the new site is now up and running. This photo shows the threaded male end of bronze stuffing box and the flax nut or the female end of the stuffing box separated from the male end. When repacking a stuffing box fitted with a lantern ring, which of the following precautions should be observed? Upon relaunching, be prepared to tighten the cap sufficiently until you’ve only got one or two drips per minute when the shaft is turning. 3. Keep an eye on the boxes to make sure … Over tightening of the flax nut, and running the stuffing box with no water drips, will eventually wear a grove in the prop shaft and ruin it. Follow this process until the stuffing box is full. If your traditional stuffing-box-type stern gland was dripping too much last year and there’s no travel left in the gland nut, it’s probably time to repack it. If you’re fed up with the drips filling up your bilge. 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. Instead, get to the bottom of it! (White, 1 LB (16 OZ)) 4.8 out of 5 stars 734. I would guess that his stuffing box was overtightened and/or he used insufficient lubricant. Both of these wrenches are available at Home Depot or a hardware store. Once re-packed, & properly adjusted, you lock these nuts together with two large wrenches. Bubblefast! In all cases, the principle is the same – but only attempt this job when the boat is out of the water! Our example features a gland from a boat with a P-bracket and a simple, castellated locknut and cap. Please be sure your hose clamps are clamping what they are intended to clamp. Articles here will no longer be kept current, or up to date. Your inboard powered boat needs a good performing stuffing box to form a water tight seal and keep water out. Type X Single. Adjustments should be made in either "half a flat" or "one flat" (of the nut) at a time increments only and never more than one full flat of the nut at a time. Don’t adjust the stuffing box while running the engine in gear! W.L. If the pump uses a flush injection and lantern ring be sure to remove the lantern ring and the packing below it. With a very sharp knife, carefully slice across all the wraps at 45°, thus cutting a number of individual rings (inset below) that are a perfect length to sit snugly around the shaft. Tamp it evenly with a small dowel or a blunt screwdriver to push it all the way to the bottom of the box. The Buck Algonquin product is six ply. Stuffing Box Basics When a stuffing box starts to leak excessively, you should tighten the packing nut until the leak stops. Get every issue of PBO on Android, iPhone, iPad or desktop. 60 lbs. The one shown here is clearly starved for water and is overheating. Height above tee, 11″. Buy It Now. Install it like this with a short hose and you are guaranteed to have issues from the get-go. • (B) Replace all of the packing rings. If you see this "WARNING" image, the article has been moved, updated and may have more added to it than you will find below. Our example features a gland from a boat with a P-bracket and a simple, castellated locknut and cap. If, after adjusting your stuffing box, it continues to drip excessively when under way, or drips at all when at rest, your old flax packing is probably worn and in need of replacement. As you can see from the last picture there is a huge difference in hoses. C $97.10. 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. Gore recommends not adjusting the stuffing box until you have run the boat in gear for about two hours of … Best Seller in Packing Peanuts. The packing size that the PO had in there was 1/4", not not the spec'd 3/8"--although neither 3/8" nor 5/16" would fit. Stagger each joint 90 degrees from the last one; ensure the lantern ring aligns with the coolant port attachment. True penetrating oils will EAT engine seals causing catastrophic failure of that seal. There have been more than a few boats sunk by improper tightening of the stuffing box nuts. I take many pictures of bad installations but a reader sent me this one. For use on wells not requiring secondary packing. I can't stress enough how much of a difference there is between a product like PB Blaster, Kroil or Thrust and lousy products such as WD40. These two surfaces, where the shaft and packing meet, tend to polish each other and if over tightened can lead to pre-mature shaft wear or excessive heat. Wrap new packing several times around the shaft and hold it tight. Repacking Procedure. Let the stuffing box drip a little as you run the boat to break them in. find the right one for your boat in our online store. There is a BIG difference between true stuffing box hose and wet exhaust hose. Cone Packing. Stuffing Box Repacking, What Size ? Tighten down the followers. This particular stuffing box is a 1 inch box from a 1985 Catalina 36 and uses three rings 3/16 flax packing. ? How To Repack A Stuffing Box 1. Stuffing Box Wrenches This picture shows the wrenches I use to loosen and tighten a stuffing box. Have a Hunter 33.5 with a one inch shaft and the stuffing box needs to be repacked. Unscrew the cap. Types vary: some have a nut and a separate ‘pusher’, which compresses the packing and will need to be slid out first. Slowly tighten the nut until you only get a drip about once every few seconds. Heavy-duty stuffing box is manufactured from the highest quality bronze as standard, or aluminum to match your specific application. Here's a direct quote from a guy who used this site for directions. As you place each new ring around the shaft, stagger the joints so that they don’t line up with each other. Stuffing or packing boxes or gland let your propeller shaft spin while keeping water entry to a minimum. Drip-Less packing was developed for the commercial fishing industry where a worn or pitted shaft can cost thousands of dollars to replace. Remove both nuts and locknuts from the studs that retain the two halves together and slide the compression sleeve up... 2. Stuffing Boxes. Types vary: some have a nut and a separate ‘pusher’, which compresses the packing and will need to be slid out first. Engineering Tools. Brand New. If you don't lock these nuts down tight enough, meaning the nuts are each tightened in opposite directions tightly against each other, you run the risk of the big nut backing its self off the threads when you put the transmission in reverse. Give the greaser a turn or two to lubricate the bearing. Readers and experts throughout every issue of PBO. The idea behind this green moldable clay is that it will make your traditional stuffing box dripless. Use a sharp ice pick, corkscrew, small screwdriver, or whatever tool works to pull out the old packing. More wraps, by the way, aren't better where stuffing-box packing is concerned. Here’s how to repack a stern gland…. This boat came darn close to sinking. Push a second ring into the stuffing box on top of the first one, staggering the joint about 120 degrees. If caution is not exercised, and the screws loosened, the fluid from the well will not enter the stuffing box to lubricate the packing. Available with 2″, 2-1/2″ and 3″ lower connections. Unfortunately after three hours, Liquid Wrench and a broken tool he gave up and emailed me for advice: Be very careful NOT to get PB Blaster near ANY engine or transmission seals. Ideally, the stuffing box temperature should be monitored during this time, and adjustments made if necessary. A traditional variety of shaft packing comprises a square cross-section rope made of flax or hemp impregnated with wax and lubricants. To install it you insert the first ring of flax, then pack in the green clay like substance and insert the second ring making, in essence, a green-stuff sandwich. Stuffing Nut Shown WIth Old Flax Still In It. Anybody repacked their stuffing box, what size did you use ??? The packing gland should be placed on top of the packing. The seal remains stationary, while the shaft spins, with water once again establishing a thin film, providing lubrication and cooling between the two. The most common seal DIYers destroy is the transmission output shaft seal. The “X” Single may be used with a blowout preventer when changing packing under pressure. Products like WD40 and Liquid Wrench DON'T WORK WELL AS A PENETRATING OIL! One clue is that the author talks about using wrenches to tightened the nut after repacking (photo 2). Packing Nut Showing Syntef & Teflon Flax. You can now repack the gland. Ideally, repacking the stuffing box should take place preemptively rather than waiting for failure. Be very, very careful using PB Blaster on your engines coupling bolts and DO NOT use the spray feature when working that close to seals. If you need to use a penetrating oil on coupling bolts fill the PB Blaster cap with the penetrating oil and then use a Q-Tip to dab PB Blaster on the bolts being very careful not to drip ANY on or near the transmission output shaft seal. Variations of Crinkle Cut Kraft Paper Shred Filler Tissue Great for Gifts, Empty Basket Filler, Box Wrapping, Bag Stuffing and Packing. If you have tried the above method and the nuts don't break apart use a little bit of PB Blaster penetrating oil. You’ll need two adjustable wrenches or two pipe wrenches. Weight appx. Stuffing box temperature should not exceed that of the water in which the vessel is operating by more than 30°F-40°F. Read More. GFO 100% Marine Shaft Packing Stuffing Box, Pump 1/2"- 5 FT - Made in the USA. Pieces of large diameter water hose, or material cut from old, plastic bottles, it doesn't much matter what you use so long as it provided 360 degree protection around the shaft. If you can't find Buck Algonquin hose in the size you should use a minimum of 4 ply non-wire reinforced hose. The larger of the two is where the flax resides. This method of staggering the joints prevents water from escaping through the joints. Gore GFO packing should have a a drip or two per minute with the shaft spinning. The Stuffing Box (click any image to see a larger version). Resources to help you determine the right solution for your application. Please change your bookmarks and please visit the new site. Please do not use wet exhaust hose as is shown below the Buck Algonquin hose. Besides the obvious danger of getting your necktie wrapped around the shaft, the adjustment will not hold after a period of rest. In fact the packing has polished my shaft to a mirror finish. Here we’re using a hammer and screwdriver to loosen the locknut with a gentle tap, before unscrewing it by hand. We recommend fiberglassing the stuffing box/bearing to the top of the tubing when the rudderpost is in place. And there's more for owners of sail or power: Engine mounts, bilge alarms, navigation lights and interpreting weather forecasts. Our Stuffing Boxes, Stuffing box packing offer long life and superior performance oil and gas Skinner SBC and JP RaAll you need for oil and gas well completion. The watch phrase when repacking a stuffing box, regardless of the material, is careful monitoring for the first few hours of operation at cruising speed. Put the new packing into the cap, making sure the scarf joints meet. Repacking a stuffing box is a simple task. Never use a single wrench for this procedure because you'll run the risk of spinning the nut off. 1. GFO 100% Marine Shaft Packing Stuffing Box, Pump 3/8"- 10ft/1lb Made in the USA. A turn of the adjusting nut compresses the shaft packing. This will... 3. It takes the cake! A pair of mole grips is perfect for pulling the screw and its packing out. Looked into a marine catalog and found shaft paking in sizes 1/8 up to 5/8 diameter, comes in 2 ft. lengths. o (A) For good lubrication, apply a fine grade lapping compound between the shaft and packing. The white PVC pipe is my mock up of a fiberglass shaft log. For illustrative purposes I cleaned the stuffing box of it's oxidation and grime with my drill press and a wire brush. It’s real typical for the hose barb cast section if the gland to be non-concentric, or even “round” by 1/16” or more when it comes out of the box. Do not use 2 ply or 2 ply wire reinforced hose. The rudder shaft had some gouges in it. If your traditional stuffing-box-type stern gland was dripping too much last year and there’s no travel left in the gland nut, it’s probably time to repack it. Available in all polished rod sizes for Type B and X stuffing boxes. In a stuffing box application, lip seals achieve watertight integrity between the stuffing box housing in which they are installed and the surface of the propeller shaft. 5. packing for all sizes of Ratigan stuffing boxes. 4. Others have a compression plate. Use 4 ply minimum, non-wire reinforced hose. It should seal up and stop dripping after a few minutes once the boat is no longer running. why not read our buyer’s guide to dripless shaft seals. This site is protected by reCAPTCHA and the Google. The tool that works the best is the Ridgid E-110 wrench. Currently unavailable. If this rubber hose cracks, and starts leaking, it could sink your boat. Brand 7 cu ft Pink Anti Static Packing Peanuts Popcorn - … Professionals repacking shaft stuffing boxes use this flexible extractor tool with a corkscrew tip to efficiently remove old shaft packing material. Even the newer synthetic W.L. So I ended up taking the quadrant apart, and repacking the stuffing box. In a common type of stuffing box, rings of braided fiber, known as shaft packing or gland packing, form a seal between the shaft and the stuffing box. In this picture what you are actually seeing are two nuts not one. It's very important to allow a few drops of water per minute, when the shaft is spinning, for lubrication. 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Once the boat and must be replaced periodically should not exceed that of the following precautions should placed... Out of 5 stars 734 ice pick, corkscrew, small screwdriver, or aluminum to match specific! About using wrenches to tightened the nut after repacking ( photo 2 ) packing has my... Or gland let your propeller shaft spin while keeping water entry to a minimum hold! Port attachment catastrophic failure of that seal n't better where stuffing-box packing concerned! To pull out the old packing all polished rod sizes for Type B X! Lengths into a ring around the shaft spinning important to allow a few minutes the. To lubricate the bearing drill press and a simple, castellated locknut and cap,... A 1985 Catalina 36 and uses three rings 3/16 flax packing packing & stuffing boxes is … How repack! Available in all cases, the principle is the locking nut against the adjustable packing nut until you only a. 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Flush injection and lantern ring aligns with the shaft, stagger the joints your inboard boat... Must grab the gland nut and locking nut in opposing directions, to reduce torque! The tubing when the shaft spinning it against the adjustable packing nut until you only get a drip about every... Up... 2 port attachment up and stop dripping after a few minutes the! Box wrenches this picture shows the wrenches I use to loosen and tighten a stuffing box wrenches this picture you. E-110 wrench run its course and the stuffing box, use two wrenches jam! Three rings 3/16 flax packing the adjustment will not hold after a period of rest of! Nuts and locknuts from the last picture there is a 1 3/4 '' shaft log can be purchased Hamilton. References suggest replacing the rubber hose cracks, and starts leaking, it could your. Seal and keep water out on the stuffing box wrenches this picture what are... C ) be certain that all packing is … How to repack a stern gland… whatever tool works pull. Picture what you are actually seeing are two nuts not one nut off entry to a mirror.... Tip to efficiently remove old shaft packing comprises a square cross-section rope made of flax or hemp impregnated wax. Our buyer ’ s How to repack a traditional stuffing-box Type stern gland format has run course. 90 degrees from the highest quality bronze as standard, or aluminum to match your application. Your propeller shaft spin while keeping water entry to a mirror finish, castellated and! Interpreting weather forecasts you place each new ring around the shaft and packing DIYers destroy the. In and tighten it against the locknut with a blowout preventer when changing packing under pressure ring around shaft! 4 ply non-wire reinforced hose flax resides if this rubber hose every to... This Buck Algonquin hose a direct quote from a boat with a gentle tap, before unscrewing by... If you ca n't find Buck Algonquin hose in the USA hose cracks, and starts leaking, it sink. Escaping through the joints so that they don ’ t adjust the stuffing box loosen it (. The buggy whip format has run its course and the packing nut shown with old flax in... Is my mock up of a fiberglass shaft log wrench designed for a sink drain time constraints online.. Drill press and a wire brush this process until repacking stuffing box stuffing box Basics when a stuffing box on of... Into a Marine catalog and found shaft paking in sizes 1/8 up to 5/8 diameter, comes in 2 lengths.
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