Go Back  Offshoreonly.com > General Discussion > General Boating Discussion
Cavitation Plate and Blade Flex= broken prop >

Cavitation Plate and Blade Flex= broken prop

Notices

Cavitation Plate and Blade Flex= broken prop

Thread Tools
 
Old 07-24-2005, 04:36 PM
  #1  
Registered
Thread Starter
 
mavrick10's Avatar
 
Join Date: Jan 2004
Posts: 155
Likes: 0
Received 0 Likes on 0 Posts
Default Cavitation Plate and Blade Flex= broken prop

I'm having a little problem. I've broken 2 props now and it's due to the blades flexing and barely grazing the cavitation plates. You can see on the bottome of the plate where the blade has barely come into contact with it. These were both 15 1/4 " diameter Bravo 1's. I've just ordered some 15 1/2 " Herrings so this is kind of worrying me a little. Should i take off the cavitation plates?? Or will the boat be too hard to get on plane?? Any suggestions?
mavrick10 is offline  
Old 07-24-2005, 06:34 PM
  #2  
Registered
 
Join Date: Aug 2003
Location: Pompano Beach Fl
Posts: 39
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

you could take off the plate planning time will increase very minamal if it is a problem then try the new maximus props from merc.
ssm-v1 is offline  
Old 07-24-2005, 11:36 PM
  #3  
Registered
 
TablerockToy's Avatar
 
Join Date: Feb 2003
Location: MO
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

You should be just fine with the new props. Im assuming your running bravo drives? they can run up to a 16" prop with no contact. If you would put up a pic of the damage I could probably tell ya whats going on, But just taking a educated guess Id say that the stepped bottom of your boat is flexing the props, they are cracking(fairly common) and hitting the cavitation plate as they are braking

Later CJ
TablerockToy is offline  
Old 07-25-2005, 06:49 AM
  #4  
JC
Registered
 
JC's Avatar
 
Join Date: Nov 2003
Location: Monroe, WI
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

I lost a plate once (took out the prop) the boat was a pig to get on plain... Prop broke would break loose very easy.
JC is offline  
Old 07-25-2005, 07:30 AM
  #5  
Official OSO boat whore
Charter Member
iTrader: (2)
 
Join Date: Oct 2000
Location: Mequon, WI
Posts: 6,157
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

The boat will definetly cavitate with a high x-dim when planing. My boat has the cavitation plate bolted on and I once forgot to reinstall it. I couldn't even plane off. Put the plate back on and boat poped up with only a little slippage. It all depends on the hull, x-dim and prop. With a deep drive, I could see there being no difference.

My guess would with the Herrings being stronger that you won't be flexing the blades as much.
Cord is offline  
Old 07-25-2005, 08:29 AM
  #6  
45 Lip Ship / 900 Zul's
Platinum Member
 
ONESICKGLADIATOR's Avatar
 
Join Date: Feb 2004
Location: Slowing down so you can catch up
Posts: 707
Received 2 Likes on 2 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

Check your prop shaft in your drives to see if it is out of wack



Rick OSG
ONESICKGLADIATOR is offline  
Old 07-26-2005, 11:39 AM
  #7  
Forum Regulator
VIP Member
iTrader: (1)
 
Sydwayz's Avatar
 
Join Date: May 2001
Location: Worldwide
Posts: 23,828
Received 1,195 Likes on 519 Posts
Default Re: Cavitation Plate and Blade Flex= broken prop

Been there!! I actually had the prop blade begin to tear, and sliced the cavitiation plate, anode, and drive shower up. Say hello to a replacement lower case (B1-XZ appliaction).
Attached Thumbnails Cavitation Plate and Blade Flex= broken prop-all-three-broke.jpg   Cavitation Plate and Blade Flex= broken prop-cav-plate.jpg   Cavitation Plate and Blade Flex= broken prop-first-look.jpg  

Sydwayz is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
NJgr8ful
General Q & A
2
09-07-2008 11:51 PM
NJgr8ful
General Boating Discussion
5
09-06-2008 11:03 AM
NJgr8ful
Swap Shop
0
09-05-2008 07:45 PM
JON242
General Q & A
1
09-09-2004 04:21 PM
txboater
General Q & A
8
06-17-2002 11:12 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Quick Reply: Cavitation Plate and Blade Flex= broken prop


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.