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Old 27-12-2013, 23:29   #1
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Replacing engines under bunks?

How would one go about in replacing an engine that is located under the bunk in a leopard 45? Is there an access panel to hoist them out or do you take them out piece by piece, thanks.
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Old 28-12-2013, 02:26   #2
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I dont think he piece by piece deal would work on installation of the new one., maybe cut a large hole in the side and use a forklift?
Or call Peter or Bob Ross at the moorings they could probably help.
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Old 28-12-2013, 06:25   #3
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Re: Replacing engines under bunks?

If you remove the exhaust manifold and all auxiliary equipment, it won't fit out the door up the stairs and through the cabin?

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Old 28-12-2013, 07:10   #4
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Re: Replacing engines under bunks?

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Originally Posted by Efam6 View Post
How would one go about in replacing an engine that is located under the bunk in a leopard 45? Is there an access panel to hoist them out or do you take them out piece by piece, thanks.
I thought the Leopard 45 engine access was via an aft hatch like the whole second step of the boarding platform lifts up? If that's the case just hook up a halyard and lift away.

Anyway, I recently helped a friend with removing an engine from under the bunk of his FP Athena. There was a small ventilation hatch in the deck directly above the engine. We rigged a hoist through this hatch to lift the engine.

We removed the engine accessories, alternator, heat exchanger, starter, etc. and unbolted the engine from the drive leg and mounts.

We lifted the engine to just above the bunk bulkhead level then set it down on a stout plank about 6 feet long that rested on the aft bunk's forward bulkhead and on a horse in the hallway leading up to the main salon. From there we disconnected the hoist and slid the engine along the plank to another such plank about 90 degrees from the first that allowed us to slide the engine up the stairs to the main salon. We used the same technique to slide the engine into the cockpit and from there up to the deck level. It was kind of a Rube Goldberg of planks but it works fine.

Once it was on deck, we rigged a halyard to lift the engine with a mast mounted winch such that we could avoid the heavy lifting and move the engine along the deck and then to the dock where we could get a hand truck under it.

The process worked well in both directions. Reinstalling the engine was the reverse. The halyard idea was key as the engine, while not especially heavy, was awkward for two guys to lift and move without dropping it overboard.

The main problem was that my friend, when disconnecting the engine from the drive leg failed to note how many shims went on which of the eight mounting bolts. thus when we reassembled the engine, we got the spacers wrong and the starter wouldn't turn the engine due to binding on the drive shaft. Damn boats ... live and learn.
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Old 28-12-2013, 07:21   #5
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Re: Replacing engines under bunks?

Drain fluids, disconnect shaft and electicals, pull reverse gear, remove engine mounts. One or two guys can horse engine around close to the eng. hatch. Lift out with crane, comealong, extended forktruck or a couple of strong guys. They do it in a couple hours in bvi.
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Old 28-12-2013, 18:32   #6
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Re: Replacing engines under bunks?

Thanks for the input.

ub1 - I see you have an L45 listed, so it IS through the rear hatch that the engines are replaced? On a side note, are the engines directly under the bunks? What kind of odors do you get?
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Old 28-12-2013, 19:06   #7
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Re: Replacing engines under bunks?

directly under the bunk, the 45 and 47 are basically the same boat. the 47 has 1 extra step on the stern because people complained about getting their feet wet getting out of the dinghy. no smells, keep engines clean and tight.
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