Re: greasing volvo penta gimble bearing
You can use the zirk on the outside, but that only does the gimbal bearing. You still have to pull the drive to check the alignment and grease the coupler splines. Don't want to pull the engine to replace the coupler do you????
Plus when you pull the drive, you get to check for water in the bellows (That runs in to big $$$$$) You can also grease the gimbal bearing and pump till you get new grease, turn the bearing and repeat. Then clean up the excess grease.
PS bellows should be replaced every 5 or 6 years. Called preventive maintenance.