Volvo QL800 bow thruster - prop removal

[raingolfer]

Our Bavaria 46E has Volvo BP800 bow thrusters. We're trying to pull the props to check the zinc and clean out the tunnels.

There is a cap screw holding on the prop, but I can't get the prop(s) off. I found a parts list, and it appears to show a cotter pin(?) holding them on?

https://www.marinepartsexpress.com/V...PARTS_LIST.pdf

[tkeithlu]

Nope. I think you are looking at a shear pin, taking the place of a rubber prop hub.

I recommend: With the nut/bolt off, take a cheap wood chisel and tap it into the crack between the prop and the hub. The prop will move. I keep two cheap wood chisels for separating parts that appear to be glued together.

[tkeithlu]

That shear pin is called a "drive pin" part #22 in your parts list.

[raingolfer]

Thanks for the replies. I found the 2 cap screws holding each prop. They are like a set screw that sits in a channel on the shaft. Once we removed them, we were able to tap each prop out from the opposite side. They were "disguised" with barnacles and antifoul paint...

[kiszap]

I have the exact same problem and only found “hidden” screws after trying to get the props of for quite a while. All screws are now removed and the props can be moved back and forth a few milimeters but it’s like they are hitting a hard stop when trying to get them of.

Any suggestions? Just more force to convince them??

Thanks