Hunter 37-cutter Owner Modifications and Upgrades

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H37C with new Yanmar 3YM30

posted 10-07-2008 by Dave Wilson

See Completed installation

View of final installation. The 3YM30 has been a great engine for the my 37C. Tom List of List Marine in Sausalito did the installation. He had to move the engine aft in the engine compartment and put a longer propeller shaft in. The 3YM30 is so much smaller than the old engine that if he had used the existing shaft the engine would have been so far back it would have been difficult to get to it. He also matched the engine with a new prop. We selected a 16x10 3 blade fixed prop. I dont worry about the loss of speed when sailing.

See Port side mount

The motor mounts used the existing stringers. They had to be shimed about a quarter of an inch.

See Starboard mount

See Stern view

I also added a dripless packing bearing

See View from above

Sweet little package.

See Propeller shaft

View from the back of the transmission to the packing bearing.

See Attempted close up on motor mounts

See A better close up

Notice the shim under the mount


Click image for largest view