Anytime i see brown marks on board the boat, i get very worried thinking about the potentially dire possibilities of failure. We are talking about losing a mast! My starboard upper stay chainplate had a rusty streak running from the bottom of it.
This is what it looks like on the inside after I removed the wooden slats covering it. Notice that the original epoxy was still covering the washers which meant that this was the 40 year old original chain plate that came with the boat.
At first I thought it might be galvonic corrosion from the copper grounding wire attached to the bottom bolt but as you can see it came out clean.
So I set to, dismantling the chain plate and it was not a pretty sight. Lots of surface rust and even though I didn't see any cracks I thought it would be better to replace it.
Here is the old and new side by side.
I had to bend the top at a slight angle first before I installed it, but here it is all dressed up and ready to go.
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