Hi there, just noticed this thread about a prop problem. I have checked the OMC parts manual and they do not list a 13" x 14" prop so can only come to the conclusion that it is possibly not this size or it has been altered at some time in its life. If you let me know the part number on the prop I will look it up for you.
As to size for the set up you have with the main use of skiing I would recommend one of the following
3 blade aluminium 13.5" x 15" @ £89.99 + vat
4 blade aluminium 13" x 15" @ £99.00 + vat
3 blade stainless steel 13.3/4" x 15" @ £210.00 + vat
4 blade stainless steel 13.1/4" x 15" @ £299.00 + vat
3 blade Vs 4 blade.....
3 blade higher top end speed. 4 blade give better acceleration and midrange but slightly reduced top end
It might interest you to know that propeller pitch can be altered by 1" up or down. Normal cost for this service £34.50+vat. However if a propeller is purchased from us we will alter it and give a 50% discount off this price, to get the discount you just need to have a copy of your invoice, so hopefully this will take away some of the concerns about propeller sizing.
Hope that helps but if you have any queries please do not hesitate to give us a call 020 8874 7059.