How To Make Your Own Stuffing Box

[AQUASUB]

First the diagrams and pictures

[Slats]

I do appreciate the diagram - but why make one?
Add up all the costs of what you have there - then add in the value of your time, the cost is simply not worth it when you can buy and off the shelf seal. See the Caswell page http://www.caswellplating.com/models/propeller.html

Best
J

[AQUASUB]

Hi slats

Yes that would be good for some, but there are instances where a custom shaft size, or length of stuffing box, is required.
All the parts are also off the shelf and do cost a bit more than the soft seal method but this has never let me down. i've lost the count how many I have made. Not one has had to be replaced or even refilled with grease and I run a negative PSI in the subs. One would think that the grease would come right out, but not so, and I go deep - fast and long runs.

Its all in the materials used, that is by far the most important factor.
The shaft is any diameter needed of Stainless Steel Center-less Precision Ground instrument quality shaft stock. The bushings are oillite brass bushings.

The grease is the black molydenum type or marine bearing grease.

In the past I would install a "O" ring on each end but found that it was not needed, just kept it simple and reliable.
To me it just feels better to know that down in the depths the sub is protected from a solid brass, steel and grease barrier that has never failed,

Dave