Tartan 27' owner
Join Date: Jan 2008
Thanked 107 Times in 99 Posts
Rep Power: 8
Re: propeller not turning
Without knowing what size/weight/configuration boat you are talking about the prop size is just a complete guess.
Yes, LH 14 x 11 sounds big and maybe over pitched for a 30' Catalina but it could be just fine for your Cheoy Lee 36', if that is what you indeed have.
- is the prop in clean water, eg., no deadwood from the hull in front of it or is it tucked behind the hull?
- do you have a reduction gear in your transmission that allows you to spin a bigger prop at somewhat slower rotations? Or, is your transmission 'direct drive'?
I went through this with my own boat this spring when replacing the prop shaft, shaft log tube, stuffing box, cutless bearing. My boat is about 7200#s, a Tartan 27 with an Atomic 3 or 4 (30 HP max) with direct drive. Folks with Catalina 30's said they used an 12' x 6' 2 blade prop and found it just fine. Catalina 30 weighs just a little more then my Tartan 27. The big difference is that the prop shaft on the Catalina 30 sticks out into clean water but on my boat the shaft sticks out the back of the hull "deadwood". I've been using a 13" x 8" prop all this time and wondered if it was too much for my engine to spin. The deadwood causes a lot of loss of power to the prop so I've stuck with the original 13" x 8" prop which has been just fine.
We need to know the weight of your boat, plus the hull shape where the prop is to even make a somewhat intelligent guess if your 14" x 11" prop is too much, too little or just right.
I'd also hazard a guess that having a "T" shaped, or stepped key is not really a good thing on your propeller. It should be a straight key, with no change in width throughout. If it popped out once it will pop out again.
Also having a collar to adapt a 1" bore prop to a 3/4" shaft sounds like asking for trouble. I'd rather have a prop that fit MY shaft without adapters.
Used props can be had or a good prop shop could make your 1" bore a 3/4" bore for a price.
Your boat, your money, your choices.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
Everybody has one:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.