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 Post subject: Jackplate install.
PostPosted: 17 Jul 2016, 22:27 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Ok im finally getting my jackplate maybee tomorrow.

Is there any tricks on removing motor safely, installing the jackplate (STRAIGHT AND EVEN) and reinstalling motor?

I have a 2016 20 hp merc electric start.

I really dont want to have to mess up and drill more holes then i need.

Any advice?

Thx ahead
-carl


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 Post subject: Jackplate install.
PostPosted: 17 Jul 2016, 23:11 
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Joined: 05 Feb 2016, 03:42
Posts: 399
Location: Langley, BC
Jet or prop?


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 Post subject: Jackplate install.
PostPosted: 17 Jul 2016, 23:25 

Joined: 24 Dec 2011, 22:06
Posts: 860
Location: 72032
What jack plate did you get?


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 Post subject: Re: Jackplate install.
PostPosted: 18 Jul 2016, 04:14 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
This one. But since its 2 pieces it seems like its going to be a PIA to get it all lined up right.Image


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 Post subject: Jackplate install.
PostPosted: 18 Jul 2016, 06:06 
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Joined: 26 Oct 2010, 20:17
Posts: 1145
Location: E TN
I would make a template from some cardboard/thin wood/etc., and mark all the drill spots on it, then clamp it on the hull, and make sure everything is square and correct. Measure, measure, measure, look at it, think on it some more and measure again. then pick up the drill and go for it. It only hurts once to drill a hole in your hull. GL


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 Post subject: Re: Jackplate install.
PostPosted: 18 Jul 2016, 06:48 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
So mount it up to the ob first while its hanging, then make a template, then template onto hull then drill?


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 Post subject: Jackplate install.
PostPosted: 18 Jul 2016, 08:38 

Joined: 07 Mar 2011, 19:58
Posts: 2367
Location: Harrisonburg, Va.
i used giant C clamps to hold mine in place while i marked it/leveled it.



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 Post subject: Jackplate install.
PostPosted: 18 Jul 2016, 10:15 
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Joined: 15 May 2010, 00:38
Posts: 2396
Location: Central Florida
You have to find the centerline of your transom before you do anything. I see measure measure measure but nobody says how.....

Using the corner of your chines (where the bottom meets the boat side) as points and also the corners of your gunnels as points you can find it easily.
All it takes is a tape and a pencil. Hold the end of your tape at a corner of your chine and come up and strike an arc with your pencil across the transom.
Using the same measurement on the tape do this from the other chine. You will now have your first cross or "X" at or near the top of your transom. Now you need a lower one.
Hold the tape at the corner of your gunnel Tape a straight edge to the side of the boat (if this corner is too rounded) and bring it back to where the end of the tape will grab it. If this does not make sense then take a straght edge and line it up across the transom so that you can draw a horizontal line all the way across the rear of your boat. Use the ends of this line as your points. Do the same thing....strike an arc across the lower part of your transom. Same thing from the other gunnel.
Now you shoould have an upper X and a lower X. Draw a straight line through these Xs from top to bottom and that is your exact centerline of your hull. All measurements can be done from this line.

This should help.

http://www.boatmad.com/forum/attachment ... 1401659128


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 Post subject: Re: Jackplate install.
PostPosted: 18 Jul 2016, 14:44 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Thank you!


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 Post subject: Re: Jackplate install.
PostPosted: 18 Jul 2016, 17:50 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Was just thinking. I can use the 2 EXISTING through bolt holes for the top holes. Get them fastened up then drill 2 more bottom holes since the two top holes are holding on the ob now and they are straight and level.. Make sence?


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 Post subject: Re: Jackplate install.
PostPosted: 21 Jul 2016, 19:28 

Joined: 24 Dec 2011, 22:06
Posts: 860
Location: 72032
beagler1 wrote:
Was just thinking. I can use the 2 EXISTING through bolt holes for the top holes. Get them fastened up then drill 2 more bottom holes since the two top holes are holding on the ob now and they are straight and level.. Make sence?


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Might work. IF they line up.


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 Post subject: Jackplate install.
PostPosted: 23 Jul 2016, 20:43 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Done. Had to raise the motor up like 3" more then origional to get the cav plate even. Is that normal??


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IMG_4325.JPG
IMG_4326.JPG
IMG_4327.JPG



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 Post subject: Re: Jackplate install.
PostPosted: 24 Jul 2016, 13:24 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Ran perfect! No leaks either! That 15 dollar 3m sealant is worth the money!!


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 Post subject: Jackplate install.
PostPosted: 24 Jul 2016, 15:58 

Joined: 05 Oct 2008, 12:14
Posts: 4067
Location: Algonquin Il
Looks nice.
Depending on the amount of set back you could raise the motor even higher.



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 Post subject: Re: Jackplate install.
PostPosted: 24 Jul 2016, 16:13 

Joined: 01 Jun 2016, 14:11
Posts: 127
Location: Croom, FL
Hmm really...


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