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Old 02-20-2007
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erps erps is offline
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Join Date: Aug 2006
Location: La Conner, Washington
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I had a compass diaphram fail a few years back. The manufacturer wanted me to send the compass in to repair it, saying I'd never get it topped off with new mineral spirits after replacing the diaphram so there wouldn't be a bubble. They said if I was going to try it, to freeze it and the mineral spirits over night before trying it. I came up with a much easier solution.

I taped a piece of thread to the diaphram. As I filled the compass with mineral spirits, I pulled on the tread, which pulled the diaphram out so I could put more fluid in. While I was putting in the cap, I released the thread slightly so the fluid would start flowing back out the fill hole while I tightened the cap down. The result was no bubbles and a very simple way to get around on those vacuum and freezing procedures.
S.V. Nikko
1983 Fraser 41
La Conner, WA

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Boating for over 25 years, some of them successfully.
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