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  #1  
Old 12-08-2009
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A sensor maybe

This picture is from an Islander 30 a part connected to the raw water intake.
Notice the unpainted part. It looks like something was removed. Their are some mounting holes.

Do you think is is a sensor of some kind?
What are we looking at?
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Old 12-08-2009
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This is the picture
Attached Thumbnails
A sensor maybe-pc080006.jpg  
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Old 12-08-2009
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Hmm. I don't see what you're referring to. The big unpainted thing is the exhaust mixing elbow.
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Old 12-08-2009
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Quote:
Originally Posted by erps View Post
Hmm. I don't see what you're referring to. The big unpainted thing is the exhaust mixing elbow.
Exactly. If you look closely, the picture dosn't show it well, there seems to be some small holes in the unpainted area. I assume they are taps to attach something that was painted.
What was the something and why is it missing.
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Old 12-09-2009
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It may be setup for an exhaust temperature sensor. Not something you normally care about unless you are flying a plane.
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Old 12-09-2009
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To me, looks like this elbow is used on different engines model. I suspect the holes are body attachment to mount the elbow. Or a raiser accessory. Or could be simple a point to attach any other part (MD2040 had similar one to attach a fuse box). I really don't know, but usually exhaust temp sensor is mounted on a bigger hole (like the oil temp/pressure sensor) sometimes at exhaust hose.
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Old 12-09-2009
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From the pdf off their site, it looks like there are some standard holes/bosses on their mixing elbow... but no attachement shown. (probably not holes, actually, but you can see "something" on the drawings.. could be just casting marks too, I suppose.)

http://www.westerbeke.com/ProductDra...030B_PRM80.pdf
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That seems to be your heat exchanger next to it, how is it mounted? some had metal straps brazed on that would come apart so they were replaced by straps that clamp around the exchanger. Could the holes be for a different mount for the exchanger ?
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Old 12-09-2009
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Except for the idea of being an exhaust heat sensor that was removed, which sounds unlikely, I can't figure out how that once section was not painted like the rest of the engine. It really looks like some thing was removed or at least moved.
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