Impeller Replacement on R29 Volvo/ bilge pump lockoff

[BaseCampAnne]

The directions, including socket sizes, appear so useful for changing out the R25SC Yanmar impeller that I wonder if anyone might have experience on the Volvo D4 engine?

I am hoping to carry tools and parts for some potential "issues" and the impeller is one of those. Since I am not needing to change out the impeller yet, I was wondering if anyone has done it and has notes?

My second question is how others close off the bilge pump valve since we don't have a place near the engine to use plastic ties as I did on the R 25.

If a safety check is done, I believe that someone has to crawl under the table area and I do not want to have to empty the "guest" sleeping area in the lower level to access the area to lock it off.

Is there an easily accessible way for the valve to be closed/opened?

Is there some plastic cover I might use on the breaker panel to lock the breaker off with?

Thank you in advance!

 

[baz]

Anne: Are you saying you need to close of the bilge pump when changing the raw water impeller ? If so, I don't understand the need for doing that... and maybe you can explain why. Thanks. 🙂

My slip neighbor has the Volvo D4 and his words about changing the raw water impeller are not fit to post here... but then the D4 in the R29 may be a different story... I'm sure other R29 owners can chip in on this.

 

[BaseCampAnne]

My apologies for the confusion. These are two completely unrelated questions.

Also, I did not mean the bilge pump, but the macerator system that can pump out the holding tank.

I do not have a simple way to lock that off when in an area where we can use pump outs, such as the many marinas and State Parks here in WA. I do not want to leave it in an open position and have waste accidentally enter the Puget Sound.

In BC, if there are no pump outs, and depending on how full the holding tank is, there may be a need to find a large open area with water that is really moving, and not in a small cove. (Overboard pumping is forbidden in Desolation Sound!)

I am looking for a way to access a switch to our pump out system, yet have it out of the way and not where little hands can mess with it, such as on the breaker panel.

 

[BaseCampAnne]

The bilge pump lockoff issue is still on my mind.

It is certainly doable to crawl thru the basement, move the small section of "wall" and close the valve then seal it up and expect the Vessel Examiners from the Coast Guard Auxiliary or the Power Squadron to do the same. Since I am now going to be doing vessel checks for the Auxiliary I have a vested interest in a simpler solution! Perhaps one will eventually be designed.

Since no one has yet posted step by step directions for replacing the impeller on the 29 Volvo and the required tools, that may be something I will need to figure out someday by doing, which is OK.

Meanwhile, if anyone will be doing it, notes are always helpful.

Thanks 🙂

 

[walldog]

The bilge pump lockoff issue is still on my mind.

It is certainly doable to crawl thru the basement, move the small section of "wall" and close the valve then seal it up and expect the Vessel Examiners from the Coast Guard Auxiliary or the Power Squadron to do the same. Since I am now going to be doing vessel checks for the Auxiliary I have a vested interest in a simpler solution! Perhaps one will eventually be designed.

Since no one has yet posted step by step directions for replacing the impeller on the 29 Volvo and the required tools, that may be something I will need to figure out someday by doing, which is OK.

Meanwhile, if anyone will be doing it, notes are always helpful.

Thanks 🙂

Macerator, not bilge. At least I hope its not in the bilge. :lol:

 

[BaseCampAnne]

Thanks, Herb, for the correction. My error...

 

[Longbranch Louie]

Annie I don't know if the Macerator pump is on a dedicated fuse that only affects the macerator, but if it is perhaps one could pull the fuse to prevent accidental discharge and then replace it on those rare occasions when the overboard discharge is needed/allowed. I would guess most of us keep the in the wall valve in the closed position anyway in case we are inspected and to prevent accidental discharge.
On the 25 the valve is easily accessible and a simple zip tie shows an inspector that it is "locked off". While this seems to satisfy the coast guard rules, its sort of ironic that a simple clip with the scissors allows the valve to be put in the on position replacing the zip tie when done. I would think that the wall plate in the 29 and 31 serves the same purpose. I haven't looked to see just where the valve is but if its close enough to the wall plate perhaps the solid monkey fur plate could be replaced with a plexiglass cover so the position of the valve could be confirmed without removing the plate.
I would hope that an inspector would take my word that the valve is closed and not feel the need to crawl around to see it.
Oh I also keep a record of our dock pump outs in our boat log to document where and when we have pumped.

 

[pugtug613]

My R27 is a 2012 and it has a separate battery switch near the transom to remove the power to the macerator. I don't know if that's good enough for the Coast Guard, but a simple zip tie on the thru hull is OK.
Chester