just to update everyone i had the merc 115 w/17p prop problem i know there's alot of them out there but i recieved a lot of good advice and help from this forum and want to thank all of you i have since acquired the proper prop and installed it along with changing the impeller it appears it will work i now have w2hat i think is a fuel delivery problem but will address that in the proper forum. Once again thank you for all the help i truly appreciate it