How do you stop a stuffing box from leaking?
When a stuffing box starts to leak excessively, you should tighten the packing nut until the leak stops. 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.
Can you repack a stuffing box in the water?
Over time the packing will wear, and no amount of adjustment will prevent more water than desired from entering the boat. Although it’s possible to change the packing with the boat in the water, we recommend against that. Do it with the boat on the hard, especially if this is your first time.
What is a rudder stuffing box?
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). This makes the post a structural bearing and will help carry rudder loads with minimal friction. …
What is the difference between stuffing box and mechanical seal?
Mechanical seals reduce power consumption when compared to gland packing. On average the majority of gland packing consumes 6 times more power than a balanced mechanical seal. Running rotating equipment with packing in the stuffing box is like driving your car with the hand brake on.
How often should a stuffing box drip?
Water is required to lubricate conventional packing, so a properly adjusted stuffing box can be watertight when the shaft is stopped, but it must drip when the shaft is turning. Two or three drops per minute are adequate. It is not uncommon to see stuffing boxes leak at a much higher rate.
How do you seal a rudder?
Inspect and clean the inside of the lip seal cavity in the rudder bearing housing. There should be no vertical scratches on the inside diameter of the cavity. Position the new lip seal over the cavity in the rudder bearing. Tap the new seal into place with a mallet or some other smooth object.
How do you adjust a rudder stuffing box?
The adjusting/tightening nut is the upper one and the lock nut is the bottom one. You tighten the upper nut clockwise about a half turn (don’t tighten too much or you may have to repack it) and lock by turning the bottom one counter clockwise until it abuts the upper nut. That should do it.
How long does rudder packing last?
You should not have to remove anything but the packing nut to repack it. If a rudder stuffing box is packed correctly it should last for decades with occasional tightenings.
What is a dripless shaft seal?
Dripless shaft seals offer a dry bilge without the drip-per minute of the traditional stern gland. PBO checks out what’s available. The once-ubiquitous stuffing-box stern gland still has much in its favour – it’s simple, tried-and-tested and easy to repair and service.
What is the function of stuffing box?
A stuffing box or gland package is an assembly which is used to house a gland seal. It is used to prevent leakage of fluid, such as water or steam, between sliding or turning parts of machine elements.
What is the function of stuffing box in pump?
If a pump handles suction lift and the pressure at the stuffing box is below atmospheric, the stuffing box function is to prevent air leakage into the pump. If the pressure is above atmospheric, the function is to prevent liquid leakage out of the pump.
Where does grease go in a stuffing box?
Starting from the top of the stuffing box to the bottom features a snap ring for safety to help retain the 1” sealed bearing that is bored a few thousands larger than your rudder shaft. Next is an ample sized grease reservoir which is filled by the grease zert located on the outside of the rudder box housing.
How tall is the stuffing box on a boat?
Overall height of stuffing box inside the boat is 2 5/16”. Starting from the top of the stuffing box to the bottom features a snap ring for safety to help retain the 1 1/8” sealed bearing that is bored a few thousands larger than your rudder shaft.
How big of a hole do you need for rudder box?
All you have to do is transfer punch the existing hole locations in your hull to the rudder box and drill the size you need. Fits all standard 1 5/8” diameter thru hull holes. The 1 5/8” diameter section, that goes thru the bottom of your hull long (1 3/4” long), was left to accommodate any hull thickness.
Is there stuffing box for NPT water discharge port?
For 1″ shafts only. 1/8″ NPT water discharge port . This Part has options, please click the button below to order. This stuffing box utilizes a double seal on top and an o-ring on the bottom giving greater rudder shaft stability Assuring a positive leak-proof unit. This Part has options, please click the button below to order.