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Old 06 October 2008, 09:32   #1
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Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
Anodes / anyone got a spare cyl head?

Not been one of my better weekends.... When I bought the boat, the clamp anode had dissappeared, and the trim tab anode had half gone. They were duly replaced, but I found out the hard way this weekend just how corrosive the stainless - ally connection that occurs at bolt threads on the bolts holding a water jacket on becomes when the anodes dissappear (lots of warm salt water floatting around there too!)

In short I managed to strip the freshly cut thread in my cylinder head water jacket bolts using nothing more than a helicoil on it's insertion tool! The corrosion has turned the alloy of the cylinder head very, very soft.

So, the Moral of the story is don't ignore your anodes, especially if the engine stays afloat (as mine used to in a previous life).


Now for the scroungey grovely bit - does anyone have a spare cyl head for a 2 cyl Yam 45/50/55/60 that is slightly more solid than mine isn't and may want to swap it for some brown drinking vouchers? If not there will soon be a flood of spares for this engine appearing in the "for sale" section soon!
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Old 06 October 2008, 15:24   #2
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Country: Other
Town: Lima-Peru
Boat name: Nautile
Make: Sea Rider Boats
Length: 4m +
Engine: Tohatsu 18 /30 HP
Join Date: Sep 2007
Posts: 1,706
Can you post some nice pics of the problems to have a look of the damage to related parts.
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Old 08 October 2008, 05:52   #3
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Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
Loco,

Not managed to get the old one off yet, but hope to make an attempt at it this weekend. Will post when I have removed the old one.

I think I may have been able to source a replacement head (will have it confirmed tomorrow), so hopefully the rebuild will start this weekend......
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