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Old 12-14-2018, 09:44 AM   #3
sunchaser
Guru
 
City: Carefree, Arizona
Vessel Name: sunchaser V
Vessel Model: DeFever 48 (sold)
Join Date: Apr 2008
Posts: 10,185
Avalon
You say "still sooting up the transom". I assume this means it was doing this before the engine work? Why did the engine fail?

It may well be propped wrong. Three recommendations before spending time on the engine beyond the easy and obvious:
  • Get a photo tach and verify RPMs at several points
  • Assuming you have the 325 or 350 HP version, you should be pulling 2850 or so WOT under load with boat fully loaded and clean bottom
  • Do prop work to get RPMs up as verified by photo tach
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