Something else you really don't want to find
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Anastasia
Phil May and Andrea Twigg
Thu 15 May 2014 23:03
A few days ago I noticed the starboard alternator was not charging the
batteries. This is not really worrying because alternators frequently
fail, either due to loose/broken belts or loose electrical connections.
After a cursory glance to check there were no 24v power cables hanging loose
(which can be dangerous if they fall on the engine block) I decided to leave it
until we were in the calm waters of Luperon harbour.
It didn’t take long to see the alternator belts were indeed loose.
And little more time to determine that the belt was loose because the alternator
itself was loose. And then to discover that the alternator was tight on
the engine mount, but the engine mount itself had broken in two.
We had just been through some of the roughest seas we have encountered to
date, with the starboard engine secured by the three remaining mounting
brackets. Fortunately they all held, but if the increased load had caused
the engine mount on the other side to shear off then the front of the engine
would have flopped down into the bilge. Anastasia has big heavy
engines. Worst case the impact might have cracked the hull, more likely
the transmission would pivot up into the air and cause some serious damage to
the propeller shaft seal, allowing water to flood the engine compartment.
Another lucky escape.
Given that the alternator was already completely loose, I knew that I could
remove the two separate pieces of the engine mounting without anything nasty
happening to the engine. That was just a couple of hours of grunt
work. Having got the pieces off I discovered that this was not a new
break, and that the old break had been ineffectively repaired by just tack
welding a single small bar underneath the break. No attempt to re-weld the
split itself. The repair had just ripped apart.
So I headed off to the welding shop in town. Luperon is not a pretty
town, but it is just the place to get some welding done. In fact the
welding shop is the first shop you come to when walking into town from the
dock.
The guy there took the pieces from me and said no problem, come back in two
hours. I went back and he had cleaned, welded and painted the engine
bracket for me, all for the princely sum of $50.
![]() The separated engine mount. You can see that no attempt has been made
to weld along the original break.
![]() But now there is a neat piece of welding along the original break
point
![]() And some serious reinforcement bars on the
bottom |