Good day. I have a very small water leak from the freshwater circulating pump Bavaria 42 2000. . This is behind the plastic covers on my MD22 55hp. I have started the job and removed the cam belt, with all pulleys locked in position but cant remove the main crankshaft pully. Is there a secret to getting the main lock nut off. The boat is in the water so I cant put it in gear and lock the prop. How do you lock crankshaft so I can undo the nut. Also I cant figure out how to lock the fuel injector pump once the injector drive wheel is off. Is there any U tube videos. Thanks Terry.
I believe MD22 workshop manual from may help https://nikimat.com/volvo_tmd_22_workshop_manual.pdf (https://nikimat.com/volvo_tmd_22_workshop_manual.pdf). Furhtermore some tips on how not to use Volvo special tools and still manage locking all timing components (incl. flywheel) are described in timing belt change DIY instructions at https://www.jeanneau-owners.com/hintsandtips/volvomd22lbtimingbelt.html (https://www.jeanneau-owners.com/hintsandtips/volvomd22lbtimingbelt.html).
..preparing for timing belt change within the next one or two seasons... have these links at my bookmarks :)
BR,
Tommi - s/y Anniina
I can recommend getting the Haynes manual for the Perkins Prima (which is what the MD22 is, with some minor modifications around the heat exchanger):
(https://m.media-amazon.com/images/I/71lTjN2omIL._SL1500_.jpg)
Helped me a lot with this sort of job. It has all the right size drill bits that you can use instead of the Volvo special locking tools :)
Maybe too late, but still. I had the same problem when I was changing fresh water pump on my MD22. So, I just cut the cover above crankshaft pulley, so I can remove upper part of the cover (with all other pulley removed) and replace the pump.
Then I screwed back the cover. Yes, there is small crack on it now, but this saved me a lot of time and efforts.
On the MD22, you can remove the cover without removing the crank pulley, you just have to wiggle it a bit.
I have MD22L-B, and it was not possible to remove the cover with pulley installed. That is why I decided to cut it, which I think is not a big problem.