Thread: Repower Options
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Old 11-30-2015, 10:42 AM   #55
remwines
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City: Jamestown, Ca.
Vessel Name: Down East Yankee
Vessel Model: Defever 40 by Down East
Join Date: Aug 2011
Posts: 122
Since I won't need to install it right away, I planned on replacing crank seals as well as both shaft seal in the transmission. I also figured on pulling the injectors and spraying oil mist in the chambers before rotating the assembly by hand. I also planned on replacing all hose and belts, and keeping the old stuff on the boat as spares. One other thing that may be of concern are the valve springs. Those that have been compressed for 25+ years may be weak. Maybe lift pump as well. Any thoughts on that?

I do plan on running it in the shop for awhile prior to installation. It will require a riser and possibly difference rear mounts. My current assembly has the mounts off the flywheel housing and new assembly rear mounts are off the transmission.

I have not yet gotten back to the to checked the gear ratio on the current transmission. The new transmission is 2.57:1. Will this gear ratio work for my boat? Boat: 40'x13'8", 30,000 lbs full displacement with 25x19 three blade prop.

Thanks guys. I'm off to strike a deal

Bob
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