07-16-2021, 09:52 AM
Have 7.4 Crusaders and want to replace the coolant in the closed cooling system and was wondering if the old coolant can be removed with a shop vacuum?
Prefer to follow the manual and open the appropriate drain plugs but I cannot reach all of them , plus the boat is in the water and don’t want to drain the old antifreeze into the bilge.
Prefer to follow the manual and open the appropriate drain plugs but I cannot reach all of them , plus the boat is in the water and don’t want to drain the old antifreeze into the bilge.
