sjconnor
Simon Connor
I have a Volvo Penta 2002 in my Olson 34 and I've only just recent realised there is a Zinc Pencil Anode that's supposed to be replaced on a regular (once a year) basis. I've had the boat for 13 years and got on with it as quickly as possible.
Bought the anodes from the UK and had them shipped out to Singapore.
I'd previously tried to undo the anode (which is a brass square bolt head) with an adjustable spanner, but it wasn't budging so I created a youtube video on the techniques I used which worked for me.
In summary for those who don't want to sit through the video;
1. I found that my socket set had a 1/2" square design where the ratchets etc clip into, this fitted perfectly on the square brass anode head
2. Got my largest allen key which was 3/8" and the same size socket piece to create a nice fitting spanner tool
3. WD40 on the bolt
4. Sprayed compressed air to chill the brass bolt to try to shrink it (A dust spray can often be used as a freeze spray. Many gas dusters contain HFC-134a (tetrafluoroethane), which is widely used as a propellant and refrigerant.)
5. Used a steel tube over the allen key to slowly lever the bolt open instead of tapping it with a hammer which could have sheared off the head
6. Removed the anode bolt (no anode left) cleaned out the hole, fitted a new anode onto the bolts, replaced the bolt with some anti-sieze compound.
Job Done!
https://www.youtube.com/watch?v=lGq-bcF3gqQ&t=103s
Bought the anodes from the UK and had them shipped out to Singapore.
I'd previously tried to undo the anode (which is a brass square bolt head) with an adjustable spanner, but it wasn't budging so I created a youtube video on the techniques I used which worked for me.
In summary for those who don't want to sit through the video;
1. I found that my socket set had a 1/2" square design where the ratchets etc clip into, this fitted perfectly on the square brass anode head
2. Got my largest allen key which was 3/8" and the same size socket piece to create a nice fitting spanner tool
3. WD40 on the bolt
4. Sprayed compressed air to chill the brass bolt to try to shrink it (A dust spray can often be used as a freeze spray. Many gas dusters contain HFC-134a (tetrafluoroethane), which is widely used as a propellant and refrigerant.)
5. Used a steel tube over the allen key to slowly lever the bolt open instead of tapping it with a hammer which could have sheared off the head
6. Removed the anode bolt (no anode left) cleaned out the hole, fitted a new anode onto the bolts, replaced the bolt with some anti-sieze compound.
Job Done!
https://www.youtube.com/watch?v=lGq-bcF3gqQ&t=103s