Fergus
New member
Why do these always come loose almost as soon as they hit the water? Solution recommended is to put a dab of a/f on the fixing screws - anyone found a solution which works please?!
Volvo SD ring anode question
- Thread starter Fergus
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bigwow
Well-known member
Always locktite mine
tom52
Active member
Dab of Araldite across the screwhead/anode after they are screwed home, but not on the thread in case in prevents a good electrical contact. Easy to chip off when you need to remove
Sailfree
Well-known member
On our first charter boat the anode was always loose after a few months heavy use and screws missing. The boat was always being lifted because of problems with the Volvo folding prop butt thats another story!
I decided that the cause was errosion beneath/around the screw head and difficulties in tightening a phillips screw head.
I bought countersunk stainless screws with allen key sockets. Had to trim the ones I had to length. Used loctite on threads when inserting screw and never had a loose anode ever again over 2 boats/5 year use and approx 2500hrs.
I also found that the phillips screws on the roller reefing foil came loose and again replaced all these with countersunk screw but allen key heads.
From my early motorcycle days one always replaced all phillips screws in the crankcases on Japanese bikes and fitted allen screws if you wanted to undo them in 2-3 yrs time. In this case though the screws used to seize due to the white powdery corrosion on aluminuium.
Trust this works for you.
I decided that the cause was errosion beneath/around the screw head and difficulties in tightening a phillips screw head.
I bought countersunk stainless screws with allen key sockets. Had to trim the ones I had to length. Used loctite on threads when inserting screw and never had a loose anode ever again over 2 boats/5 year use and approx 2500hrs.
I also found that the phillips screws on the roller reefing foil came loose and again replaced all these with countersunk screw but allen key heads.
From my early motorcycle days one always replaced all phillips screws in the crankcases on Japanese bikes and fitted allen screws if you wanted to undo them in 2-3 yrs time. In this case though the screws used to seize due to the white powdery corrosion on aluminuium.
Trust this works for you.
PeterGibbs
New member
This is the solution - Locktite and don't forget to lean into the screwdriver when driving the screws home. Be prepared to scrap the screws when removed, and use a large headed Phillips screwdriver so as not to maul the slots on the new screws.
Don't worry about electrical contact, there's plenty of good contact in this arrangement to ensure the necessary circuit.
PWG
Don't worry about electrical contact, there's plenty of good contact in this arrangement to ensure the necessary circuit.
PWG