Notices
The Boating Forum

Transducer adjustment

Old 04-07-2019, 11:32 AM
  #1  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Jan 2018
Posts: 557
Received 112 Likes on 61 Posts
Default Transducer adjustment

Have a Humminbird Helix 7 G3N transducer on my 2018 Carolina Skiff 218DLV (my new boat!). It is causing a rooster tail to shoot up straight up at the engine cowling, I'd rather fix this before going in salt water.

Humminbird is sending me a "plug" to put in which they say will fix it, however if that doesn't work would my next option be to try one notch angle up? I also lose depth finding temporary when accelerating.

Thanks!

Old 04-07-2019, 06:00 PM
  #2  
Senior Member
 
Join Date: Aug 2009
Location: OCMD
Posts: 406
Likes: 0
Received 15 Likes on 12 Posts
Default

First thing is it appears that the bracket is loose. In the second pic you can see where it is loose at the top. Second I would adjust it both ways to see if that helps. If it does not help you still are not out anything.
Old 04-07-2019, 06:27 PM
  #3  
Senior Member
 
Join Date: Jan 2015
Location: South Central Ohio
Posts: 580
Likes: 0
Received 631 Likes on 301 Posts
Default

Pro Tip - Before mounting your transducer, 5200 and screw a piece of plastic cutting board to your hull. Then attach the transducer to that. That way, as you upgrade or want to move it around, you don't have to keep screwing into your hull, you just screw into the piece of cutting board. Something like this works perfect -
Amazon Amazon
Old 04-07-2019, 07:24 PM
  #4  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Jan 2018
Posts: 557
Received 112 Likes on 61 Posts
Default

Thanks, yes I took the clip in piece off that hides the screws and forgot to push it all the way back in looking loose. Thanks for the reminder. I saw the Sternsaver as well and the plastic cutting board would be great, but I didn't install it the dealer did. If I have to move it up I'll definitely do that to limit holes.
Old 04-08-2019, 10:03 AM
  #5  
Admirals Club Admiral's Club Member
 
Join Date: May 2015
Location: Barnegat Bay, NJ
Posts: 692
Received 134 Likes on 82 Posts
Default

Originally Posted by lugoismad View Post
Pro Tip - Before mounting your transducer, 5200 and screw a piece of plastic cutting board to your hull. Then attach the transducer to that. That way, as you upgrade or want to move it around, you don't have to keep screwing into your hull, you just screw into the piece of cutting board. Something like this works perfect - https://www.amazon.com/Commercial-Pl...dp/B01LXE0PBV/
I had considered something like that, but it really needs to be thicker than 1/2". I picked up a piece of 3/4" starboard for the same reason.
Old 04-08-2019, 11:13 AM
  #6  
Senior Member
 
Join Date: Aug 2008
Location: Fla / Curacao / WA
Posts: 5,013
Received 400 Likes on 238 Posts
Default

I'd also have a talk with the tech who ziptied your mounting wire to that transom ring and didn't bother to secure the wire. That is not done correctly.
Old 04-08-2019, 11:23 AM
  #7  
Senior Member
 
Join Date: Mar 2016
Posts: 1,095
Received 93 Likes on 67 Posts
Default

very difficult to reliably glue hdpe or strboard. LDPE or PVC much better for this purpose
Old 04-08-2019, 12:22 PM
  #8  
Senior Member
 
Join Date: Mar 2009
Location: Homosassa, FL
Posts: 1,513
Received 177 Likes on 106 Posts
Default

The plug that Humminbird sells generally works for their transducers. Or you can just fill in the gap with marine silicon.
Old 04-08-2019, 12:40 PM
  #9  
Senior Member
 
Join Date: Sep 2010
Location: Central Florida
Posts: 741
Likes: 0
Received 0 Likes on 0 Posts
Default 'ducer

The angle looks about right. The proper installation on a vee bottom boat is where the horizontal plane is parallel to the water, and the longitude is slightly downturned from the waters plane. Now here's the most important part. The inboard edge of the ducer should be like 1/8" below the boats hull, and the other edge just falls where it may keeping it horizontally level.

I have the Garmin fish finder and its mounted like above. It shows fish in 100' of water at 25 Knots. Same with my last unit, a Raymarine 465. The transducers are similar to yours.
Old 04-08-2019, 01:00 PM
  #10  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Jan 2018
Posts: 557
Received 112 Likes on 61 Posts
Default

Originally Posted by v12mac View Post
I'd also have a talk with the tech who ziptied your mounting wire to that transom ring and didn't bother to secure the wire. That is not done correctly.
​​​​​​You know I didn't even think of it when I saw it, but it should be a clip holding it correct?
Likes:
Old 04-08-2019, 01:20 PM
  #11  
Senior Member
 
Join Date: Jan 2012
Location: Key West, Florida
Posts: 2,333
Likes: 0
Received 256 Likes on 171 Posts
Default

!st The transducer is mounted too close to center line of boat. Move it out board and it will work much better. It may also be too deep
Old 04-08-2019, 01:37 PM
  #12  
Admirals Club Admiral's Club Member
Thread Starter
 
Join Date: Jan 2018
Posts: 557
Received 112 Likes on 61 Posts
Default

Originally Posted by keysdiver View Post
!st The transducer is mounted too close to center line of boat. Move it out board and it will work much better. It may also be too deep
​​​​​​If the plug doesn't fix it I'll definitely do that and order a Sternsaver kit to prevent more holes in the stern.
Old 04-10-2019, 09:17 AM
  #13  
Senior Member
 
Join Date: Aug 2008
Location: Fla / Curacao / WA
Posts: 5,013
Received 400 Likes on 238 Posts
Default

Btw Humminbird has a great forum on their website. Several engineers moderate the discussion, I believe they use the screen name humminbirdgreg.
Old 04-10-2019, 09:22 AM
  #14  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2007
Posts: 14,248
Received 1,989 Likes on 1,466 Posts
Default

does the manual have mounting instructions?

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 Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.