Sanded the prop -- now out of balance??? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 06-11-2009
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,579
Thanks: 5
Thanked 39 Times in 38 Posts
Rep Power: 8
Bene505 will become famous soon enough Bene505 will become famous soon enough
Sanded the prop -- now out of balance???

Yes, I used an orbital grinder and went at our ugly looking prop. Now the prop looks shiny with a few small copper circles, where the zinc must have come off.

I did one blade at a time, and I got better at doing it as I went, so by the 3rd blade I was able to get to the shiny brass while taking much less of the metal. Part of it was learning how deep the copper circles went and being less aggressive on later blades and not go ing after them as much.

I'm thinking, yikes! Did I just put my prop out of balance? And if so, do I have to send it somewhere to get balanced, or does it not matter?
__________________
.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing.
.
Reply With Quote Share with Facebook
  #2  
Old 06-11-2009
JT1019's Avatar
Belliure 41'
 
Join Date: Aug 2006
Location: Connecticut
Posts: 136
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
JT1019 is on a distinguished road
Send a message via AIM to JT1019
If you took off a lot of metal from one blade and almost none from another than yes, it is now out of balance. If you run it I’m sure you will chew up your cutlass bearing or your stuffing box. Send it to Hale Propeller in Old Saybrook CT. They will balance it to your motor/transmission combination. In the future you might want to consider something WAY less abrasive such as emery paper or 120 grit sand paper.
__________________
“Greatness Is Not In Where We Stand, But In What Direction We Are Moving. We Must Sail Sometimes With The Wind And Sometimes Against It – But Sail We Must, And Not Drift, Nor Lie At Anchor.”
Oliver Wendell Holmes
Reply With Quote Share with Facebook
  #3  
Old 06-11-2009
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 9 Times in 9 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
What possessed you to use an ORBITAL GRINDER to clean off the prop? A wire brush wheel would have done a decent job with far less damage potential.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #4  
Old 06-11-2009
JT1019's Avatar
Belliure 41'
 
Join Date: Aug 2006
Location: Connecticut
Posts: 136
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
JT1019 is on a distinguished road
Send a message via AIM to JT1019
HA HA HA, I was not going to say that but I did my very best to imply it. Nothing like using a cannon to kill a fly!
__________________
“Greatness Is Not In Where We Stand, But In What Direction We Are Moving. We Must Sail Sometimes With The Wind And Sometimes Against It – But Sail We Must, And Not Drift, Nor Lie At Anchor.”
Oliver Wendell Holmes
Reply With Quote Share with Facebook
  #5  
Old 06-11-2009
smackdaddy's Avatar
Last Man Standing
 
Join Date: Aug 2008
Posts: 13,041
Thanks: 82
Thanked 76 Times in 70 Posts
Rep Power: 9
smackdaddy is a jewel in the rough smackdaddy is a jewel in the rough smackdaddy is a jewel in the rough
Bullhorn-at-mouth...

Sir...put your hands up and step away from the grinder!
Reply With Quote Share with Facebook
  #6  
Old 06-11-2009
svHyLyte's Avatar
Old as Dirt!
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,663
Thanks: 12
Thanked 101 Times in 96 Posts
Rep Power: 6
svHyLyte is on a distinguished road
Bene--

People with a little experience can usually avoid making dumb mistakes. On the other hand, one only gains experience by making dumb mistakes.

Unless you really ground the heck out of the blades you may not feel much difference in the running gear although the cutlass bearing will likely wear a little more quickly. Most folding blade props are not particularly well balanced anyway and adjust somewhat by blade angle. If you've a fixed blade prop and it feels "off", a prop-shop can probably grind and re-balance it at little cost.

Live'n learn. Next time use a little RydLyme or a similar product to remove the calcium deposits. You might also try "Speed Prop" or a similar dressing that limits growth on the prop.

Good luck...

s/v HyLyte
__________________
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Reply With Quote Share with Facebook
  #7  
Old 06-11-2009
Maine Sail's Avatar
Senior Member
 
Join Date: Jan 2003
Location: Maine Coast
Posts: 5,303
Thanks: 10
Thanked 119 Times in 87 Posts
Rep Power: 15
Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice
What you

What you are seeing is dezincification of the prop and it was already ruined before you touched it..
__________________
______
-Maine Sail / CS-36T


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




© Images In Posts Property of Compass Marine Inc.


Reply With Quote Share with Facebook
  #8  
Old 06-11-2009
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,579
Thanks: 5
Thanked 39 Times in 38 Posts
Rep Power: 8
Bene505 will become famous soon enough Bene505 will become famous soon enough
Correction, I used a sander (an orbital sander) on the prop, not a grinder. I was amazed at how easily it took off the metal.

It's a 3-bladed, fixed prop.
__________________
.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing.
.

Last edited by Bene505; 06-11-2009 at 05:34 PM.
Reply With Quote Share with Facebook
  #9  
Old 06-11-2009
BarryL's Avatar
Senior Member
 
Join Date: Aug 2003
Location: Long Island, NY
Posts: 1,599
Thanks: 3
Thanked 25 Times in 24 Posts
Rep Power: 12
BarryL is on a distinguished road
Hey,

I have no idea if you prop is dezincified or not.

I doubt the prop is now out of balance. After the boat has been in the water for a period of time, you'll get barnacles and other growth, and they don't seriously unbalance the prop.

Good luck,
Barry
__________________
Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 06-12-2009
timebandit's Avatar
Senior Member
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
timebandit is on a distinguished road


Quote:
Originally Posted by BarryL View Post
Hey,

I have no idea if you prop is dezincified or not.

I doubt the prop is now out of balance. After the boat has been in the water for a period of time, you'll get barnacles and other growth, and they don't seriously unbalance the prop.

Good luck,
Barry
__________________
Rick
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Mac 25
Copernicus
Southern California
I am not a prejudice racist sexist bigot. I just hate stupid people.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fixed vs. Free Wheeling Prop - Test Data Maine Sail Gear & Maintenance 18 01-26-2010 12:45 AM
Changing prop underwater trantor12020 Gear & Maintenance 16 03-03-2007 12:02 PM
Choosing the Right Propeller Sue & Larry Gear and Maintenance Articles 0 02-04-2003 07:00 PM
The Balance of Hull and Sails Steve Colgate Learning to Sail Articles 0 05-25-2000 08:00 PM
The Balance of Hull and Sails Steve Colgate Buying a Boat Articles 0 05-25-2000 08:00 PM


All times are GMT -4. The time now is 07:59 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.