Here ya go PORT ENG SER# :12 VA83654 STBD ENG SERIAL#:12 VA83655
Just purchased a 1990 Viking 63 motor yacht with DD 12V71TAB engines. I want to go thru and replace all the raw water hoses and coolant hoses on...
I would say every second to 1.5 seconds. Intensity/strength seemed to increase as the boat leaned or dipped to the port side also. Thx
Boat has 12V71TAB's. Around 1600 to 1800 rpm there is a heavy pounding sound by the port engine exhaust that shakes the shows up in master state...
