4.3l v6 sr2 prop ?

swtch7

Cadet
Joined
May 2, 2007
Messages
24
Good afternoon!
I am new to this forum but i am in need of some help. I bought a 1996 maxum sr2 bowrider last night and have just 1 problem. The prop that is currently on the motor is this 5 bladed prop, i dont have any specs on it right now but I took it out last night and realized that this is a terrible propeller for this motor. If you are idling slow and then gun it, the rpms of the motor spins up and you can hear the prop spinning fast, sounds like its cavitating. Once on plane, you have to keep the motor trim all the way down... which causes you to have a bad ride in the boat, bouncing across the water. Once I trim up the slightest bit it sounds like it starts cavatating again. Soooo my question is what propeller would be ideal for this boat? 3 blade or 4? and what pitch and all that other good stuff. Any info would be helpful and I would appreciate it. Thanks in advance.
Ernie
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,100
Re: 4.3l v6 sr2 prop ?

i dont have any specs on it right now

Hi Ernie,.....

As I said up in the I/O forum,.......

Knowing the Pitch of the prop on there Now is Very Important,........

Please go,+ Find that #,..... It'll help Alot with the responces here......
 

WillyBWright

Fleet Admiral
Joined
Dec 29, 2003
Messages
8,200
Re: 4.3l v6 sr2 prop ?

You probably have a High Five made by Mercury. There are ventilatioon holes in the hub that need to be plugged. You can get plugs with different hole sizes to fine tune, but you need plugs with no holes for a sterndrive. They need to be completely shut. Any Merc dealer can order them for you.
 
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