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Old 01-11-2019, 02:46 PM   #1
Flex
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Default Boat Experts- Jack Plate, Tilt/ Trim Questions

Hey TBH fellas, I have tried searching the interwebz, can not find exactly what I am looking for.

Has anybody added the CMC tilt trim? I am looking to add it, but already running a 6" set back jack plate, if i added the trim I think I would be at almost 10-12" of set back. Not sure if this is doable, as I have never seen it.

Boat is a 17.5x60 Mod V aluminum with a 70 Evinrude, no power trim. It runs fine as is, but I would really like to be able to adjust trim and fine tune the ride and performance a little more.
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Old 01-11-2019, 03:03 PM   #2
jds247
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That should be a jack plate trim combo? At least my buddy's is.. I have 2 manual jps on my duck boat. Total of 11 inches of offset
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Old 01-11-2019, 03:14 PM   #3
Mr. Whiskers
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You can also use trim tabs to adjust your ride
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Old 01-11-2019, 04:41 PM   #4
SaltwaterSlick
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I put a CMC power trim on a 16 X 52 flat, but just mounted it to the transom. With that much set back as you are talking about, it will put a serious torque on the transom when you're coming out the hole... With mine (it had a 35 merc), I ultimately had to brace the corners of the transom where they met the side gunwales as I started to get fatigue cracks. The longer the shaft of the motor, the worse the torque will be. You probably should look it over very carefully before using both. Might want to remove the setback and just use the CMC plate alone...
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Old 01-11-2019, 04:47 PM   #5
bboswell
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I would look for a combo unit. That much set back will run great but will trash your transom.

If you do this be sure and use a transom saver while towing.
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Old 01-11-2019, 05:19 PM   #6
Quackerbox
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I was able to add trim to a Johnny 50 that didnt come with one. The pump etc was mounted on the outside of the transom and a plate with the 2 cylinders bolted to the motor. Added maybe 1 1/4??

Stone in sons in Houston did it. I do not have pics and no longer own the boat. Although I wish i did

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Old 01-11-2019, 08:02 PM   #7
Flex
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Quote:
Originally Posted by jds247 View Post
That should be a jack plate trim combo? At least my buddy's is.. I have 2 manual jps on my duck boat. Total of 11 inches of offset
How does it handle? I just started looking.

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Old 01-11-2019, 08:04 PM   #8
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Quote:
Originally Posted by bboswell View Post
I would look for a combo unit. That much set back will run great but will trash your transom.

If you do this be sure and use a transom saver while towing.
I hadn't thought about transom stress. Its pretty beefed up and solid already, i have some friends that could beef it up as needed.

I can't seem to find much on the web, not sure how these boats handle at 10-12" setback. I think I'd definitely get even skinnier though.

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Old 01-11-2019, 09:19 PM   #9
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Mine runs fine. No signs of unusual wear thus far. This is a 175 tracker and 48 HP Johnson.
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Old 01-11-2019, 09:27 PM   #10
jds247
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Quote:
Originally Posted by Flex View Post
How does it handle? I just started looking.

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It's a tiller 40 . You have to pay attention when running it.. theres not much motor in the water so it can get squirrely. Its rigged that far back because I dont have a tunnel..
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Old 01-12-2019, 11:14 AM   #11
Mayhem
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I have a 1756 G3 with a 50 that ha tilt and trim. I wish it had a jack plate and I might invest in one.


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Old 01-12-2019, 02:16 PM   #12
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Quote:
Originally Posted by TeamAmerica View Post
Mine runs fine. No signs of unusual wear thus far. This is a 175 tracker and 48 HP Johnson.
Wow. Thats basically my exact setup if i added the TNT.

I would have figured mpunt the tnt onto the jack plate, not how you did it. Any reason you did it this way?

How high can you run the motor that way?

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Old 01-12-2019, 02:21 PM   #13
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It was like this when I bought it. The only advantage I can really think of on this set up is the TNT motor is a bit further away from the outboard and water splashing on it. I think water ends up killing these trim motors most often. I really don't run shallow but I dont think you lose any height adjustment this way.
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Old 01-12-2019, 04:06 PM   #14
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Quote:
Originally Posted by TeamAmerica View Post
It was like this when I bought it. The only advantage I can really think of on this set up is the TNT motor is a bit further away from the outboard and water splashing on it. I think water ends up killing these trim motors most often. I really don't run shallow but I dont think you lose any height adjustment this way.
I run shallow a lot.

Main reason for wanting tilt trim is to help launch shallower, second is fine tune at top speed and get the bow up.

The way I'm set up now i can run 6-8" water, get up in a foot or so. The added setback if i could pull it off would give me even more space to lift the motor maybe another inch or so.

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Old 01-12-2019, 04:48 PM   #15
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Manual or hydraulic jack plate?
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Old 01-12-2019, 05:43 PM   #16
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Quote:
Originally Posted by TeamAmerica View Post
Manual or hydraulic jack plate?
Mines a manual currently.

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Old 01-12-2019, 05:51 PM   #17
kenner27
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Bobs makes a 12” offset. Dunno why it wouldn’t work with 2 6”. I say go for it!
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Old 01-12-2019, 08:59 PM   #18
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Quote:
Originally Posted by kenner27 View Post
Bobs makes a 12” offset. Dunno why it wouldn’t work with 2 6”. I say go for it!
Alright alright. Going to start looking for a used unit cheap. I don't like to spend my money! I'll update when i figure it out.

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Old 01-13-2019, 06:48 PM   #19
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Think i found a deal on a panther PT 55 unit. Says 55hp up to 250lbs. My evinrude only weighs 200#. Should work.
Will see if they take my offer.

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Old 01-25-2019, 11:53 AM   #20
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Well, reviving this one. Panther PT55 will not work mounted to a jack plate. I found a factory unit I was about to pull the trigger on, but talked myself out of it because the information on swapping it was so inconsistent.

Decided I am going with a CMC PT 130, and will mount to my jack plate and see what happens.

Also ordered trim tabs to help some as well.

If any of you guys come across a deal on a used PT 130 let me know. Been watching Ebay and C list no dice.
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Old 01-25-2019, 01:13 PM   #21
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Quote:
Originally Posted by TeamAmerica View Post
Mine runs fine. No signs of unusual wear thus far. This is a 175 tracker and 48 HP Johnson.
Wow is that transom rated for that or you have to do some reinforcing? I had a little skeeter years ago that was not rated for plate, guy I sold it to did it anyways... it went Crack! To the OP I would ask advice on the bass boat central forums.
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Old 01-25-2019, 02:04 PM   #22
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Quote:
Originally Posted by bossbowman View Post
Wow is that transom rated for that or you have to do some reinforcing? I had a little skeeter years ago that was not rated for plate, guy I sold it to did it anyways... it went Crack! To the OP I would ask advice on the bass boat central forums.
My transom is really solid, just rebuilt. If it does seem to have any issues I will have a buddy reinforce it and weld extra supports on.

That is the plan for now.
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