150 2/stroke - internal anodes

[Rob Welman]

Hi all.

Am busy overhauling my motors , and have taken on the job of replacing the 8(16 for both) anodes in the water jacket. These motors are more than 10 years old so these anodes , as you can imagine , are well and truly coroded into place

I took me about an hour to break one out, using a hammer , chisel & blow torch....

Is there an easier way , or am i doomed to forcablly remove each one the hard way

Rgds

Robert

[Tucker]

Recall reading here that if they haven't been changed in a while to just leave them alone.

[robert graham]

I'd just replace the ones you can get at and remove easily, no need to tear up anything. Take a wire brush to the ones you can't remove to expose some fresh metal.

[Rob Welman]

Hi Gents , , wish I knew this before I started the procedure.

However , I am now down to about 20 Min to remove an old anode. Learing as I go along.

What i am doing is

Drill three 6 mm holes into the anode.Starting in the centre and then one left and right of that.

Lesson 1 : Dont drill to deep , or else you could damage the retaining bolts hole.

Using a die grinder and a 6mm grinding bit , grind away , VERY carefully , the left over anode.You not going to get at everything , so dont try to. You have to watch out that you do not damage the head gaskets seating area. The die grinder can " run away" with you

Lesson 2 : Dont try and use a drill ISO die grinder. The bit is designed for a die grinder and functions a lot better at high RPM

Using a average sized blow torch , heat up the left over pieces of the anode , and using a thin metal chisel (flat screwdriver) and hammer , chip left overs away.

Lesson 3 : wear safety glasses ...and watch those pieces are HOT

The above is alot of work , but the new anodes look quite cool in their slots.

Would i do it again...NO...next time I will head Mr Graham's advise and use a wire brush