anodes

Sharky · 24 November 2004, 18:39

Does anybody know where to get the zinc rod that goes into a Yanmar engine anode???
Buying a set of these for £80 and replacing the ones on the leg as well gets expensive.
Has anyone else found these dissolve very quickly when the boat is moored up, I keep it in the Hamble or Island harbour I.O.W and already replaced one set this year and now need a another. Can any help!!!

tue · 24 November 2004, 19:08

I assume your engine is attached to Mercruiser drive? If so make sure it has a Mercathode unit (It replaces the anode where the Power trim pipes split to the rams). Make sure it is working correctly. There is a test that any Mercruiser centre can do for this. Also make sure there aren't any other irregularities in the wiring that could cause the engine/drive to be permenantly live which will cause anodes to corrode very quickly.

How bad are they whan you replace them? We only replace anodes that are over 1/2 corroded.

The bloke anodes do tend to errode quicker then the ones on the drive (I think because they use a brass nut to hold the anode in the Aluminium block).

Ian Austin · 24 November 2004, 20:49

Hi Sharkey
I have a customer that i have changed his anodes 4 times this year alone, he has twin Volvo duo prop outdrives, stainless props, on permant shore power with the cable dangling in the water and backed up to a pontoon post, all these contrubute to erroding anodes, Oh and what are the anodes like on the boats around yours as this does not help either.

DGR · 22 December 2004, 14:40

On a marina based boat (so in the water 100% of the time), but not used as often as I would have liked (42 hours in the last 4 months

) - would you expect the anodes on the drive to corrode quicker, slower, or in about the same time as the engine anodes?

My outdrive anodes definately need replacing - but the whole lot is due for a service in 8 hours - although I don't know how long it will take me to get to the 50 hr mark.

Also - is changing the engine anodes difficult, or is it just one out and one in?

And finally, referring to the first post - is there an alternative source of anodes? £192.16 every 4 months is going to add up.........

Dylan...

whitewater · 22 December 2004, 15:58

Try Keypart, seem to remember seeing some at the London Boat Show.

http://www.keypart.co.uk/

George