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Old 03-10-2019, 12:44 PM   #4
sunchaser
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 8,321
CJ
With photo tach idle speed and transmission ratio in hand, ask on boat diesel about minimum safe idle speed for the Volvos. If possible, dropping the idle speed could help a bunch. There are several smart professional V guys there.
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