We are looking for some advice on our Hundested type FR variable pitch propeller
The prop has started slipping, and will not give any thrust. I've dived under the boat
, and removed the three blades, in an attempt to strip it apart to find out what is wrong.
With the gearbox
, the prop shaft (inside boat) will rotate freely one way, and lock the other. However, when I spin the prop by hand under the boat
, it rotates freely in both directions.
Do these types of prop have a key and key way? It feels to me as if the key may have dropped out? Otherwise, I guess we are looking at a broken shaft? It doesn't feel rough when I rotate it by hand, which to me doesn't suggest a breakage?
I'd really like some drawings for the unit, but am unable to find anything convincing on a Google
search. I'd also like to know if this prop has a key, and if so- what size it would be, so I can obtain one ready for the dry dock
Finally, I've never removed a prop before, and I'm not even sure how this prop would be removed from the shaft? Does anyone have any experience with these?
Any help is much appreciated!!