Upgrading our Sailboat Battery System & Replacing Yanmar Engine Mount [Wildly Intrepid Ep 62]
December 5, 2019 · 25 min · 2K views
What this video covers
The crew of a sailboat upgrades their electrical system and replaces a degraded Yanmar engine mount.0:07 To increase capacity to 520 amp hours, they add two new batteries to the existing bank and reorganize the system into two separate house banks—one AGM and one lead-acid—controlled by a selector switch.0:48 They address persistent voltage drop at the DC panel by replacing corroded wiring and adding a DC block to reduce connection points.8:24 A battery hydrometer reveals low specific gravity in the lead-acid cells, which they attempt to restore through equalization.3:44
For the engine repair, the crew replaces a worn Yanmar motor mount.14:01 After failing to lift the engine high enough to clear the mount's studs, they remove the L-bracket bolts to slide the mount out.16:41 During reinstallation, a galvanized leg bolt snaps off in the stringer.21:41 Unable to extract the broken fastener due to tight clearance around the alternator, they drill a new hole and secure the mount using stainless steel bolts set in epoxy.23:02
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