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Old 31 December 2010, 09:36   #1
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Engine

What part of the engine is the part that has rust on it in the picture???
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Old 31 December 2010, 09:37   #2
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sorry pictures weren't uploading will try later
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Old 31 December 2010, 18:02   #3
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http://www.flickr.com/photos/57706631@N04/5310950290/

http://www.flickr.com/photos/57706631@N04/5310946244/
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Old 31 December 2010, 20:43   #4
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looks like the steering arm and top mount.
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Old 01 January 2011, 06:50   #5
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Quote:
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looks like the steering arm and top mount.
i concur, looks like steering arm to me
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Old 01 January 2011, 08:22   #6
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What part of the engine is the part that has rust on it in the picture???
Out of interest, what engine is this? Unusual to see as much suface corrosion there. I'd put money on the sacrifical zinc anodes not being replaced as a possible cause.
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Old 01 January 2011, 08:57   #7
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I had a Yam 80 that rusted in exactly the same place. Must be something to do with the electrolytic action running though the steering components?
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Old 01 January 2011, 11:13   #8
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Rust

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What part of the engine is the part that has rust on it in the picture???
It's the steering arm pivot and top mount bracket. It's not in the sacrificial anode circuit as it is not Aluminum but made from cast iron for strength reasons. It will take ages to rust, so no harm and nothing to be worried about... For cosmetic purposes you could wire-brush, jet wash and re-spray with Outboard paint (YMM-30400-GM Yamaha paint code - as it looks like a Yamy?)

It also Looks like you're bottom cowling is not being full earthed to the anode circuit properly and is why you are getting bubbles / flakey paint... It could just be the age of the motor though...? Or old Anodes... Check all anodes

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Old 01 January 2011, 14:03   #9
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how much would this cost to repair
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Old 01 January 2011, 14:50   #10
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how much would this cost to repair
Depends on what you wanted repairing?

The swivel bracket can be repaired / painted in situ. To replace it is a massive job of removing the powerhead, lower cowling, top and bottom mounts (which break/snap if old) Waste of cash for you!

It shouldn't be too expensive for someone to rub all the old rust away, clean and paint with a good marine paint. - As long as they do a good job; 40/50 Max!

For the lower cowling (tray) I am guessing that the engine you have is an F40...? If so I have looked at the WM and It doesn't look like tray is earthed to the block... Maybe Yamaha decided not too... Take the hood off and have a look around the base of the block to see if there is a black lead solely running from the engine block to the tray...
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