Anyone using a prop shaft brush for anode connection?

[FullCircle]

Sorry, second post.
Does anyone have a recommendation for shaft brushes to connect the anode system to the prop shaft?
How quickly does it wear out, if at all?
Easy to fit?

 

[oldsaltoz]

Quote:
Does anyone have a recommendation for shaft brushes to connect the anode system to the prop shaft?
How quickly does it wear out, if at all?
Easy to fit?


Depends on how much effort you put into getting the shaft contact area smooth and how you prevent it getting dirty.

Also the size and hardness of the brush or brushes and amount of tension you put on them.

I prefer the double brush type mounted over the shaft.

Hope this helps.

Avagoodweekend......

 

[michael_w]

If you need the brush to bypass a non-conducting flexible coupling there's another way of doing it.

Buy a stainless steel pan scourer.
Stuff a bit of the scourer in the central void between the flanges/straps and bolt up a normal.

Hey Presto! Electrical continuity from engine to shaft.

 

[DavidMcMullan]

We had one of these (http://www.mgduff.co.uk/mgduff-product-catalog/Electro+Eliminators/) fitted on my last boat. No significant wear over several years. Easy to install and remove.

 

[robbieg]

Any reason why you can't rely on a shaft anode? My surveyor suggested a brush anode to bond the prop & shaft to the main anode but I have found in practice a shaft anode does the job quite adequately.

If you do go down the shaft brush route McDuff seem to be the main providers.

 

[Billjratt]

I just mounted a washing machine motor brush using the stuffingbox as a base for the clamp.

 

[Miker]

I've got belt, braces and 6" nails, with a shaft brush to a hull anode, a shaft anode and a prop anode on my Bruntons. After a year in the water, the prop anode was in dire need of replacement, the shaft anode will last another year, and the hull anode does not lookas if it has been eaten away at all. I

 

[VicS]

If its doing the job, doesn't need renewing every five minutes and you know the tricks of fitting a new one so that it does not come lose and fall off. Then just stick with the shaft anode.

Dont fix what's not broken

 

[Steve_N]

We have shaft brushes, probably the MG Duff ones I think:

Works very well: no visible wear to either shaft or brushes after several years.
It occasionally needs a smear of (conductive) grease to stop it squeaking.

We've no room for a shaft anode.

 

[chrishelen]

Thats a nice neat installation.

 

[Steve_N]

[ QUOTE ]
Thats a nice neat installation.

[/ QUOTE ]

Thanks! That's the 'after' picture.
The 'before' (as purchased) wasn't quite as neat. There are shaft brushes in there somewhere..