Make sure your nuts are done up very tight - Salutory note with a dash of puckering on the side

[Praxinoscope]

Rant

A fitter or a mechanic not an engineer I suspect. A professional engineer would have specified the correct size coupling.

Gosh is there still imperial kit about? I was 60 in March and was educated and worked wholly in metric. My late father a time served Clydeside apprentice then a merchant navy engineering officer welcomed the move to metric; although worked in both.

Rant over.

Quite a few examples of imperial threads still in use, a common example is on the nice new shiny digital camera that many people will be buying still has a 1/4 inch Whitworth tripod thread or if one of the larger professional models will also have a 3/8inch Whitworth tripod thread.

 

[Restoration man]

I’ve just bought Radice seals , the shafts would have to fall out completely before it let any water in , I did consider pss but the price and the fact that they are made of to many parts ,I like the Radice as it’s pretty much only one piece , not to much to go wrong

 

[colind3782]

The manufacturer of Aquadrive instructs that Loctite be used. Is that as reliable as wire locking?

Nothing to stop anyone using Loctite and wire-locking too, although aircraft fastenings are designed for wire-locking with castellated nuts and holes for the wire in the bolts etc.. The advantage of wire-locking critical fastenings is that a quick visual inspection will show if anything has moved. Everything still needs to be torqued correctly first of course.

 

[dgadee]

I’ve just bought Radice seals , the shafts would have to fall out completely before it let any water in , I did consider pss but the price and the fact that they are made of to many parts ,I like the Radice as it’s pretty much only one piece , not to much to go wrong

Well, depends if you have the one with the breather/inlet tube and grease tube. I have two of those and wondered sometimes whether anything could go seriously wrong. The other day the breather tube (I dry out so it's useful for not having to 'burp' the seal) the breather tube end hadn't been fastened up above the waterline after lift in. When I put reverse on it caused a syphon effect in the breather tube. Just as well I heard it before I left the boat filling up with water. Apart from that I like them for simplicity and price.