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. Professionals repacking shaft stuffing boxes use this flexible extractor tool with a corkscrew tip to efficiently remove old shaft packing material. 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. Bubblefast! Available in all polished rod sizes for Type B and X stuffing boxes. Others have a compression plate. Our example features a gland from a boat with a P-bracket and a simple, castellated locknut and cap. 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. This method of staggering the joints prevents water from escaping through the joints. Packing Nut Showing Syntef & Teflon Flax. 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. Ideally, repacking the stuffing box should take place preemptively rather than waiting for failure. The one shown here is clearly starved for water and is overheating. As you place each new ring around the shaft, stagger the joints so that they don’t line up with each other. You can now repack the gland. If the pump uses a flush injection and lantern ring be sure to remove the lantern ring and the packing below it. Stuffing or packing boxes or gland let your propeller shaft spin while keeping water entry to a minimum. Height above tee, 11″. Once re-packed, & properly adjusted, you lock these nuts together with two large wrenches. Read More. For illustrative purposes I cleaned the stuffing box of it's oxidation and grime with my drill press and a wire brush. 1. 4. Get every issue of PBO on Android, iPhone, iPad or desktop. You must grab the gland nut and locking nut in opposing directions, to reduce the torque on the stuffing box hose. This site is protected by reCAPTCHA and the Google. The Buck Algonquin product is six ply. Besides the obvious danger of getting your necktie wrapped around the shaft, the adjustment will not hold after a period of rest. Gore recommends not adjusting the stuffing box until you have run the boat in gear for about two hours of … ? A turn of the adjusting nut compresses the shaft packing. 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. The idea behind this green moldable clay is that it will make your traditional stuffing box dripless. Type X Single. Heavy-duty stuffing box is manufactured from the highest quality bronze as standard, or aluminum to match your specific application. 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. Remove both nuts and locknuts from the studs that retain the two halves together and slide the compression sleeve up... 2. Keep an eye on the boxes to make sure … Put the new packing into the cap, making sure the scarf joints meet. Looked into a marine catalog and found shaft paking in sizes 1/8 up to 5/8 diameter, comes in 2 ft. lengths. The white PVC pipe is my mock up of a fiberglass shaft log. 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. Top Rated Seller Top Rated Seller. Please be sure your hose clamps are clamping what they are intended to clamp. Have a Hunter 33.5 with a one inch shaft and the stuffing box needs to be repacked. C $97.10. It's very important to allow a few drops of water per minute, when the shaft is spinning, for lubrication. Tighten down the followers. As you can see from the last picture there is a huge difference in hoses. Products like WD40 and Liquid Wrench DON'T WORK WELL AS A PENETRATING OIL! Never use a single wrench for this procedure because you'll run the risk of spinning the nut off. 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. The tool that works the best is the Ridgid E-110 wrench. After repacking the stuffing box, use two wrenches to jam the locking nut against the adjustable packing nut. Types vary: some have a nut and a separate ‘pusher’, which compresses the packing and will need to be slid out first. Best Seller in Packing Peanuts. Anybody repacked their stuffing box, what size did you use ??? GFO 100% Marine Shaft Packing Stuffing Box, Pump 1/2"- 5 FT - Made in the USA. Here we’re using a hammer and screwdriver to loosen the locknut with a gentle tap, before unscrewing it by hand. Even the newer synthetic W.L. Boat Drive Train, Shaft Packing & Stuffing Boxes. Please do not use wet exhaust hose as is shown below the Buck Algonquin hose. How To Repack A Stuffing Box 1. 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. 60 lbs. Resources to help you determine the right solution for your application. 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. This old format has run its course and the new site is now up and running. 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 Buck Algonquin hose sized for a 1 3/4" shaft log can be purchased from Hamilton Marine for about $9.00 or less. 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. The rubber hose connects the bronze stuffing box to the boat and must be replaced periodically. Instead, get to the bottom of it! We recommend fiberglassing the stuffing box/bearing to the top of the tubing when the rudderpost is in place. Brand 7 cu ft Pink Anti Static Packing Peanuts Popcorn - … 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! It takes the cake! (White, 1 LB (16 OZ)) 4.8 out of 5 stars 734. If you can't find Buck Algonquin hose in the size you should use a minimum of 4 ply non-wire reinforced hose. More wraps, by the way, aren't better where stuffing-box packing is concerned. Stagger each joint 90 degrees from the last one; ensure the lantern ring aligns with the coolant port attachment. 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. Here's a direct quote from a guy who used this site for directions. And there's more for owners of sail or power: Engine mounts, bilge alarms, navigation lights and interpreting weather forecasts. True penetrating oils will EAT engine seals causing catastrophic failure of that seal. Weight appx. Unscrew the cap. Replace both No. Push a second ring into the stuffing box on top of the first one, staggering the joint about 120 degrees. There is a BIG difference between true stuffing box hose and wet exhaust hose. Readers and experts throughout every issue of PBO. Please change your bookmarks and please visit the new site. Use a sharp ice pick, corkscrew, small screwdriver, or whatever tool works to pull out the old packing. 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. Give the greaser a turn or two to lubricate the bearing. Drip-Less packing was developed for the commercial fishing industry where a worn or pitted shaft can cost thousands of dollars to replace. 5. 3. One wrench is a traditional pipe wrench and the other is a spanner wrench designed for a sink drain. A traditional variety of shaft packing comprises a square cross-section rope made of flax or hemp impregnated with wax and lubricants. 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. Stuffing Nut Shown WIth Old Flax Still In It. 176-4 rubbers when replacing the box. C $106.88. Curl one of your cut lengths into a ring around the shaft and push it into the stuffing box. Your inboard powered boat needs a good performing stuffing box to form a water tight seal and keep water out. Let the stuffing box drip a little as you run the boat to break them in. In this picture what you are actually seeing are two nuts not one. 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. Do not use 2 ply or 2 ply wire reinforced hose. Use 4 ply minimum, non-wire reinforced hose. There have been more than a few boats sunk by improper tightening of the stuffing box nuts. 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. One clue is that the author talks about using wrenches to tightened the nut after repacking (photo 2). Please do not use the wrong hose. The “X” Single may be used with a blowout preventer when changing packing under pressure. Available in #0 and #1 sizes, both tools include a … Engineering Tools. LUBRIPAK™ Packing. For use on wells not requiring secondary packing. Brand New. It should seal up and stop dripping after a few minutes once the boat is no longer running. If this rubber hose cracks, and starts leaking, it could sink your boat. If you have tried the above method and the nuts don't break apart use a little bit of PB Blaster penetrating oil. Buy It Now. So I ended up taking the quadrant apart, and repacking the stuffing box. find the right one for your boat in our online store. 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. 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. In fact the packing has polished my shaft to a mirror finish. If you see this "WARNING" image, the article has been moved, updated and may have more added to it than you will find below. A pair of wrenches is a gentler way to loosen it. Install it like this with a short hose and you are guaranteed to have issues from the get-go. W.L. If caution is not exercised, and the screws loosened, the fluid from the well will not enter the stuffing box to lubricate the packing. The most common seal DIYers destroy is the transmission output shaft seal. Brand New. 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). The rudder shaft had some gouges in it. See new links below. The packing gland should be placed on top of the packing. 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. Ideally, the stuffing box temperature should be monitored during this time, and adjustments made if necessary. From United States +C $37.06 shipping estimate. The Stuffing Box (click any image to see a larger version). Tamp it evenly with a small dowel or a blunt screwdriver to push it all the way to the bottom of the box. You can now screw the cap in and tighten it against the locknut. o (A) For good lubrication, apply a fine grade lapping compound between the shaft and packing. Nothing went as expected. The thin nut, on the left, is the locking nut. Eventually this site will go the way of the buggy whip. Types vary: some have a nut and a separate ‘pusher’, which compresses the packing and will need to be slid out first. Variations of Crinkle Cut Kraft Paper Shred Filler Tissue Great for Gifts, Empty Basket Filler, Box Wrapping, Bag Stuffing and Packing. 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. Most references suggest replacing the rubber hose every seven to ten years. I take many pictures of bad installations but a reader sent me this one. Slowly tighten the nut until you only get a drip about once every few seconds. 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. 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. This will... 3. Resist the temptation to simply remove a few rings of packing that are near the top of the stuffing box. Stuffing box temperature should not exceed that of the water in which the vessel is operating by more than 30°F-40°F. Available with 2″, 2-1/2″ and 3″ lower connections. I would guess that his stuffing box was overtightened and/or he used insufficient lubricant. Repacking Procedure. Our example features a gland from a boat with a P-bracket and a simple, castellated locknut and cap. Follow this process until the stuffing box is full. packing for all sizes of Ratigan stuffing boxes. Wrap new packing several times around the shaft and hold it tight. 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. Here’s how to repack a stern gland…. How to repack a traditional stuffing-box type stern gland. Repacking equipment during a system outage is often performed under time constraints. This particular stuffing box is a 1 inch box from a 1985 Catalina 36 and uses three rings 3/16 flax packing. Available in a wide range of materials. In all cases, the principle is the same – but only attempt this job when the boat is out of the water! Repacking a stuffing box is a simple task. Stuffing Boxes. Gore GFO packing should have a a drip or two per minute with the shaft spinning. o (C) Be certain that all packing is … 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. The larger of the two is where the flax resides. If you’re fed up with the drips filling up your bilge. 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. 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. Cone Packing. 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. Stuffing Box Basics When a stuffing box starts to leak excessively, you should tighten the packing nut until the leak stops. Both of these wrenches are available at Home Depot or a hardware store. When repacking a stuffing box fitted with a lantern ring, which of the following precautions should be observed? Currently unavailable. why not read our buyer’s guide to dripless shaft seals. Stuffing Box Repacking, What Size ? • (B) Replace all of the packing rings. 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. Stuffing Box Wrenches This picture shows the wrenches I use to loosen and tighten a stuffing box. This boat came darn close to sinking. Articles here will no longer be kept current, or up to date. A pair of mole grips is perfect for pulling the screw and its packing out. 2.Remove the old packing. The seal remains stationary, while the shaft spins, with water once again establishing a thin film, providing lubrication and cooling between the two. GFO 100% Marine Shaft Packing Stuffing Box, Pump 3/8"- 10ft/1lb Made in the USA. You’ll need two adjustable wrenches or two pipe wrenches. Hose as is shown below the Buck Algonquin hose in the USA to be repacked drip or two per,. 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Every seven repacking stuffing box ten years shaft seal drip or two pipe wrenches a sharp ice pick, corkscrew small. Times around the shaft and packing the size you should use a sharp ice pick, corkscrew, small,... In and tighten a stuffing box is manufactured from the last one ensure!
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