Author Topic: SI transducer on deep vee transom (Read 10531 times)

gofission · « **on:** April 10, 2011, 08:11:10 PM »

I mounted my 798 ci HD SI transducer on my 23 degree deep vee hull using the manual directions. The inside edge lines up with a staight edge like it should. I notice that the outside of the TD is way below the hull line. It looks like it will make a heck of a rooster tail. I launch in 6 days. Any thoughts?

sonar2000 · « **Reply #1 on:** April 11, 2011, 11:54:15 AM »

As always a picture or two would help with the visualization.
You are correct in that it may rooster tail..
Chuck

Roddy · « **Reply #2 on:** April 11, 2011, 10:15:17 PM »

sir; I had to make a top spray cover for one install on a deep V. simple .060 sheet steel 1.5" wider than xducer bent in the shape of an "L". It worked.

Enjoy Roddy

Humminbird_Greg · « **Reply #3 on:** April 12, 2011, 01:52:20 PM »

If it does than just install the roostertail plug that was packaged with your unit.
On some boats (especially deep-vees) you have to mount the transducer this low.

gofission · « **Reply #4 on:** April 12, 2011, 06:22:54 PM »

Quote from: Humminbird_Greg on April 12, 2011, 01:52:20 PM

If it does than just install the roostertail plug that was packaged with your unit.
On some boats (especially deep-vees) you have to mount the transducer this low.

Ok all my stuff is at the shore. Heading down thurs night. I'll take a few pics of the mount. I do not remember seeing a rooster tail plug. Anyone have a pic of this plug?

sonar2000 · « **Reply #5 on:** April 12, 2011, 06:32:30 PM »

Not all units shipped with the plug...
Let me look around the forum. there was a picture of this a while back...
Chuck

sonar2000 · « **Reply #6 on:** April 12, 2011, 06:59:35 PM »

Well, I looked for a while and I cant find the picture.
So I went to the humminbird web and searched under tranducer accessories and while they show all the transducer mounting stuff none of the pictures show the rubbber plug.
I did find mention of a yell sheet that comes with a unit that has the ruber plug but could not find any pictures of the yellow sheet or the plug...
Anybody else?

Chuck

Humminbird_Greg · « **Reply #7 on:** April 14, 2011, 03:38:05 PM »

I was thinking that all of the 798 units shipped out with the roostertail plug (unless someone did not put it in the box…). It should have been in a small plastic bag by itself – it’s black and oddly shaped. I don’t have a picture of it. I think we stopped the yellow sheet a while back Chuck.

sonar2000 · « **Reply #8 on:** April 14, 2011, 06:27:48 PM »

Greg, I also heard that not all units shipped the plug. Confirm they are still shipping the plug. Why is the yellow sheet not included?
Chuck

gofission · « **Reply #9 on:** April 15, 2011, 01:31:23 PM »

OK took some pics. These are after I moved it up 1/4 inch. I think it will be ok. Launching the boat in an hour.

sonar2000 · « **Reply #10 on:** April 15, 2011, 02:04:03 PM »

How much of that paint did you get on the transducer. Did it cover the bottom of the ducer also?

?
Chuck

Roddy · « **Reply #11 on:** April 15, 2011, 03:34:08 PM »

Get the paint off the XDUCER ASAP!!!!!!

Roddy

gofission · « **Reply #12 on:** April 15, 2011, 05:12:56 PM »

the paint is water based. The bottom of the TD is painted with transducer paint.
The unit works ok but test conditions could not be worse. The TD throws a wall of water onto the engine cowl.

sonar2000 · « **Reply #13 on:** April 16, 2011, 11:43:23 AM »

YEP....anything above 1 or 2 mph will probably do just that.
A lot of posting on this forum about transducer location, speed, roostertail and loss of depth at speed.
Chuck

gofission · « **Reply #14 on:** April 16, 2011, 04:26:30 PM »

Quote from: Humminbird_Greg on April 14, 2011, 03:38:05 PM

I was thinking that all of the 798 units shipped out with the roostertail plug (unless someone did not put it in the box…). It should have been in a small plastic bag by itself – it’s black and oddly shaped. I don’t have a picture of it. I think we stopped the yellow sheet a while back Chuck.

Found the plug in the box under a small section of folded cardboard seperate from the transducer parts. Dont know why they didnt just put in with the other parts.

sonar2000 · « **Reply #15 on:** April 16, 2011, 04:52:14 PM »

Makes ya wonder if others have thrown it away not knowing it was there. Did you have a yellow sheet on the plug? Greg, did say they stopped shipping that awhile back. It would have been a good reminder...
Chuck

gofission · « **Reply #16 on:** April 16, 2011, 05:05:18 PM »

Yes it was in a bag with the plug. Since nothing in the installation guide mentioned the plug, there was no reason to root through the packing materials. I would imagine a lot get tossed. Hope it helps.

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