Results 1 to 17 of 17

Thread: Nicked Propeller Repair

  1. #1
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Nicked Propeller Repair

    My friend and customer ran his boat in shallow water and the propeller hit the ground, which nicked the edge of the propeller. I have seen more damage when a propeller hit a branch in the water. The following four pictures show the damage to the propeller.

    1. Nicked propeller
    Name:  1. Nicked propeller.jpg
Views: 858
Size:  111.5 KB

    2. Nick-1
    Name:  2. Nick-1.jpg
Views: 859
Size:  74.2 KB

    3. Nick-2
    Name:  3. Nick-2.jpg
Views: 851
Size:  89.9 KB

    4. Nick-3
    Name:  4. Nick-3.jpg
Views: 850
Size:  84.9 KB

    The first step was to sand off the paint so that it wouldn’t contaminate the weld. I also sanded off the mushroomed Aluminum near the nick.

    5. Sanding paint off
    Name:  5.  Sanding paint off.jpg
Views: 852
Size:  61.5 KB
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  2. Likes farmersammm, albrightree liked this post
  3. #2
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    I used a bar clamp to rigidly clamp the propeller to my welding table so that it wouldn’t move while I was working on it.

    6. Propeller clamped
    Name:  6. Propeller clamped.jpg
Views: 853
Size:  89.8 KB

    I used a piece of copper to keep the weld from sagging.

    7. Propeller ready for welding
    Name:  7. Propeller  ready for welding.jpg
Views: 849
Size:  71.6 KB

    Here are three pictures of my welds.

    8. First Welds
    Name:  8. First Welds.jpg
Views: 854
Size:  62.5 KB

    9. Weld-2
    Name:  9. Weld-2.jpg
Views: 849
Size:  67.5 KB

    10. Weld-3
    Name:  10. Weld-3.jpg
Views: 845
Size:  74.4 KB
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  4. Likes farmersammm, albrightree, N2 Welding liked this post
  5. #3
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    And here is my setup for grinding the welds.

    11. Welds ground down
    Name:  11. Welds ground down.jpg
Views: 854
Size:  109.5 KB

    12. Close of one blade
    Name:  12. Close of one blade.jpg
Views: 854
Size:  133.9 KB

    All finished and painted.

    13. Propeller all done and painted
    Name:  13. Propeller all done and painted.jpg
Views: 845
Size:  104.6 KB

    -Don
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  6. #4
    Join Date
    Sep 2012
    Location
    Wheatland, Wyoming
    Posts
    388
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Good to go I'd say. Nice repair.
    Chris
    Auction Addict

  7. #5
    Join Date
    Mar 2021
    Location
    Near Roanoke, VA
    Posts
    249
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Is there any way to get it rebalanced??

    I know there is a real high end mower blade balancer,, that would probably balance it,,

  8. #6
    Join Date
    Jun 2012
    Location
    Sebeka and Bemidji MN
    Posts
    14,821
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Looks like a nice repair - about what I would have done as well.

    I talked to a prop repair guy once (who had retired and sold his patterns) - he said he didn't balance them after repair.

    I always wondered how off balance one could be before causing vibration issues.
    They seem to run for years with unevenly weighted chunks out of them.
    Pure speculation, I guess welding to shape has to be better than that
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  9. #7
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by MinnesotaDave View Post
    Looks like a nice repair - about what I would have done as well.

    I talked to a prop repair guy once (who had retired and sold his patterns) - he said he didn't balance them after repair.

    I always wondered how off balance one could be before causing vibration issues.
    They seem to run for years with unevenly weighted chunks out of them.
    Pure speculation, I guess welding to shape has to be better than that
    I would guess if the original propeller was balanced the repaired one would be pretty good.
    My friend does plan on getting it balanced.

    -Don
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  10. #8
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by SweetMK View Post
    Is there any way to get it rebalanced??

    I know there is a real high end mower blade balancer,, that would probably balance it,,
    I live in the suburbs of Detroit MI. We have a company called Harris that can balance anything from tiny very high speed Titanium bellcups for paint robots to large rotors that feed coal dust into power plants. Before I retired in July I used to regularly work on projects with them. I’m sure that they can balance a propeller.

    -Don
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  11. #9
    Join Date
    Jun 2012
    Location
    Sebeka and Bemidji MN
    Posts
    14,821
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by Don52 View Post
    I would guess if the original propeller was balanced the repaired one would be pretty good.
    My friend does plan on getting it balanced.

    -Don
    I bet when they check it, it's pretty dang close already
    Dave J.

    Beware of false knowledge; it is more dangerous than ignorance. ~George Bernard Shaw~

    Syncro 350
    Invertec v250-s
    Thermal Arc 161 and 300
    MM210
    Dialarc
    Tried being normal once, didn't take....I think it was a Tuesday.

  12. #10
    Join Date
    Dec 2003
    Location
    Fairfield,CT
    Posts
    1,415
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Nice job.
    www.tjsperformance.com
    Dynasty 300 DX
    HTP 240
    HTP Microcut 380
    Hyperthem 85
    JD2 Hyd Bender and HF Hyd Ring Roller all in one =(Frankenbender)
    Bpt. Mill/DRO
    4' x 8' CNC Plasma Table
    Instagram: tjsperformance
    YT: TJS Welding and Fabrication

  13. #11
    Join Date
    Oct 2015
    Location
    NW New Jersey
    Posts
    774
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Great pictures !! thanks for posting. https://www.weldingweb.com/images/smilies/biggrin.gif
    Airco 250 ac/dc Heliwelder Square wave
    Miller Synchrowave 180 sd
    Miller Econo Twin HF
    Lincoln 210 MP
    Dayton 225 ac/dc
    Victor torches
    Snap-On YA-212
    Lotos Cut60D

  14. #12
    Join Date
    Oct 2012
    Location
    Michigan
    Posts
    169
    Post Thanks / Like

    Re: Nicked Propeller Repair

    If your buddy needs another source to get his prop balanced Proper Props in Wyandotte does great work. 734-764-2470
    Tim
    metalcraft by moose
    Southeast Michigan
    https://www.facebook.com/Metalcraftbymoose

    Stupid Hurts!!

  15. #13
    Join Date
    Mar 2008
    Location
    Georgetown, Texas
    Posts
    1,964
    Post Thanks / Like

    Re: Nicked Propeller Repair

    That's a great looking repair job. A guy in Austin that repairs props uses a stick welder with aluminum rods for the aluminum props.

  16. #14
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by moose View Post
    If your buddy needs another source to get his prop balanced Proper Props in Wyandotte does great work. 734-764-2470
    Thanks, I’ll let him know.

    -Don
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  17. #15
    Join Date
    Aug 2019
    Location
    northeastern PA.
    Posts
    156
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Nice job Don. What filler did you use?

  18. #16
    Join Date
    Mar 2014
    Location
    Troy MI
    Posts
    416
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by BillE.Dee View Post
    Nice job Don. What filler did you use?
    Maxal 4943

    -Don
    Smith Oxyacetylene Torch
    Miller Dynasty 200DX
    Lincoln SP-250 MIG Welder
    Clausing/Coldchester 15" Lathe
    16" DuAll Saw
    15" Drill Press
    7" x 9" Swivel Head Horizontal Band Saw
    20 Ton Arbor Press
    Bridgeport
    Lincoln LE 31 MP & Lincoln 210 MP

  19. #17
    Join Date
    Jun 2016
    Posts
    673
    Post Thanks / Like

    Re: Nicked Propeller Repair

    Quote Originally Posted by MinnesotaDave View Post
    Looks like a nice repair - about what I would have done as well.

    I talked to a prop repair guy once (who had retired and sold his patterns) - he said he didn't balance them after repair.

    I always wondered how off balance one could be before causing vibration issues.
    They seem to run for years with unevenly weighted chunks out of them.
    Pure speculation, I guess welding to shape has to be better than that

    its not if the prop is balanced, its the pitch, rake and cupping that you worry about on a prop. also excellent repair!!!! its how the prop "bites thru" the water.
    lincoln 125sp
    monkey wards 250 ac/dc
    miller 211 w/spool gun
    ahp 200 sx tig
    lotos ltp5000d
    of course duramax diesel

  20. Likes Mikel_24 liked this post

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Page generated in 1,624,568,960.84459 seconds with 15 queries