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Engine Removal


Diagram of engine removal rig At the February 2002 maintenance seminar, Wood beam for attaching come-along Towney described the techniques he uses to remove and replace the engine. After removing all the connections to the engine, he constructs a beam across the companionway with a couple of two-by-fours. To keep this from sliding, he fixes some blocks of wood with C-clamps on the aft side.

From this beam, he hangs a come-along which is fastened to the lifting eye on the top of the engine. Attaching come-along to beam From the same lifting eye, he connects a block and tackle to a point aft of the engine. This tackle can be made of cheap hardware store components. Holding the tackle, he lifts the engine with the come-along and then slowly eases the tackle until the engine is hanging vertically. Then he shifts the block and tackle and uses it to pull the engine forward to a table of two-by-fours laid across the settees. (Someone asked about the possibility of making a mess of the cabin, but Towney covers everything with plastic before starting.)

For reinstalling the engine, Towney works in reverse. Because the new boats use bolts that thread into buried nuts for the engine mounts, Towney created some guide pins from Describing "chinese jack" for maneuvering engine spare bolts. He cut off the heads of these bolts and then cut screwdriver slots in the top. These are screwed down into the mounting points and the rubber pieces (cut from tire sidewalls) and shims are placed on top. The engine is lowered down on these temporary pins. Once everything is in place, the pins can be unscrewed and the original bolts replaced. To jockey the engine around for shaft alignment, Towney recommended a "chinese jack." This consists of a basketball, deflated until it fits under the engine. Then, to move the engine slightly, the basketball is inflated until the engine lifts just enough. This allows the engine to be moved around and for the shims under the engine mounts to be adjusted.




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