Pick a New Engine | What to Look For | Making a Blank | Removing the Old Engine | Disconnecting Systems | Mounts and Coupler | Lifting the Old Engine | Engine Beds | Shimming | Filling Holes | Flat Mounts | Landing the Engine | Exhaust System | Other Systems | Finishing Up
Disconnecting Mounts and Couplers.
The mounts are held on by (usually) 4 large nuts – one for each mount. If you have difficult access, find an open-end wrench that fits the nuts, then cut the wrench handle down short so you have room to swing it through an arc of more than a few degrees. If you have open access, good for you, you are one of the lucky ones. Remove the nuts. Consider removing the lag bolts that fasten the mounts to the stringers if you have easy enough access – it will simplify the lift. Sometimes it’s easier to remove the brackets that hold the mounts directly from the engine. Usually this isn’t possible though until the engine is out of the way.
To disconnect the coupler, just remove the 4-6 bolts that attach it, remove the drive saver if you have one, and slide the shaft aft just enough to separate it from the transmission coupling and keep it clear when you lift. If the coupler and transmission are tight together and won’t disengage after the bolts are out, check again that all the bolts are out. Then have a diver pull on the prop, or go outside if you’re hauled out and pull a bit.
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