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ContinuousWave Whaler Moderated Discussion Areas ContinuousWave: Whaler Performance 13-footer: CMC 10-inch Setback Jack Plate
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Author | Topic: 13-footer: CMC 10-inch Setback Jack Plate |
tonka485 |
posted 06-30-2011 10:04 PM ET (US)
I am restoring a 13 footer. This is a fishing boat and my first [Boston Whaler boat]. I [am] really looking forward to using it. I have a rebuilt 30-HP [Evinrude two-cycle outboard engine] with no tilt-trim. I am considering a CMC manual jack plate with a 10-inch setback. I am hoping to get some advice from you guys [about what brand or type of 10-inch setback jack plate to use on a 13-foot Boston Whaler boat]. Price is a factor. Thanks don |
Tom W Clark |
posted 06-30-2011 10:39 PM ET (US)
Don -- Have you seen Clark Robert's old 13 on Cetacea page 28? It has a 10" setback bracket: |
tonka485 |
posted 07-01-2011 07:23 AM ET (US)
Thanks Tom Thats the look I want. I really like that. My concern is the weight of the jack plate, I think it is 42 pds. and the setback of 10 inches making the bow of the boat ride too high. I see he has mounted a fin on the motor to keep the bow down and I think I will do so as well. I am almost ready to order it, I just was hoping to get some feedback from here. Thanks for responding That picture of his boat may have pushed me over the edge..don |
Clark Roberts |
posted 07-01-2011 07:24 AM ET (US)
I used an "Altus" (no longer made?) trim/tilt bracket which made it possible to use a 15" (short) shaft motor on the 20" transom. |
thegage |
posted 07-01-2011 09:07 AM ET (US)
I think 10 inches of setback is a bit much. I use a Bob's Mini Manual Jack Plate with my E-TEC 30 on a 13, and it has about 5 inches of setback. Only weighs 12 lbs. The downside is that it's a bit of a chore to change height, but once it's set it's great. Also relatively inexpensive. http://www.bobsmachine.com/Products/jackplate_manual.cfm John K. |
thegage |
posted 07-01-2011 09:09 AM ET (US)
http://www.bobsmachine.com/Products/jackplate_manual.cfm |
Powergroove803 |
posted 07-01-2011 02:28 PM ET (US)
I have a TH marine mini jacker with 4 inches or rise and 3 inches offest(may numbers may be off a little) It was $75 at Bass Pro shops online, weighs about 9 -10 pounds, no adjustment once its affixed, but it suffice for the 13, not tested yet....maybe next week! |
dburton |
posted 07-01-2011 02:39 PM ET (US)
thegage & Powergroove803 How do you handle the curved back of the 13 and the square bracket of the jack plate? |
Tohsgib |
posted 07-01-2011 03:25 PM ET (US)
I would not use a 10" unless using a 15" shaft on a 20" transom. 5-6" is plenty and are around $150. |
jimh |
posted 07-01-2011 04:09 PM ET (US)
Moved to PERFORMANCE. |
pcrussell50 |
posted 07-01-2011 05:49 PM ET (US)
quote: It may be a bit much for good handling and function, but he said he was after the "look" of a 10" setback. If the look is more important than the function, then there is pretty much no other way to get that look than with the real deal. I guess the CMC tilt/setback plate for the smaller horsepower motors could be bolted up to the back of a regular setback plate, to make a total of 10"? -Peter |
tjxtreme |
posted 07-01-2011 06:11 PM ET (US)
I'd consider something like a CMC PT35 while you are at it... it is 4.5" less setback than you are looking for, but will also add power trim. It is going to be a pain having to stop and tilt a 30 hp during fishing, especially if it is an additional 10" off the transom. Dburton- the plate slightly deflects on the curved transom. There is enough space at the hinge such that this is not a problem. |
pcrussell50 |
posted 07-01-2011 07:26 PM ET (US)
I should add that I have a PT130, (the one for the bigger motors), on one of my fast lake boats. It is a VERY nice bit of kit. Still, it is only a 5" setback, only a little more than the 4 1/2" for the model tj referred to, which is the appropriate size for a 30hp motor. I say, if you _really_ want 10" of setback, get the PT35 and stack it behind a basic, static, 5" setback bracket. It will only come to 9 1/2", not 10" but that's pretty darned close to the 10" look you were after. -Peter |
tonka485 |
posted 07-01-2011 07:46 PM ET (US)
Thanks to all. I am rethinking the 10 inch setback. I'm thinking more in the 5 inch range now....I was just needing a little advice and I was fortunate to get that here. Is the curve in the transom of any concern? |
thegage |
posted 07-02-2011 05:29 PM ET (US)
quote: I used composite shims. John K. |
tjxtreme |
posted 07-02-2011 07:24 PM ET (US)
See my earlier post- the curve is not a concern. I did not shim, the CMC unit deflected slightly but does not seem to add any strain to the hinge or other parts of the unit. |
Tohsgib |
posted 07-04-2011 01:13 AM ET (US)
Never had any problem with the curved transom, couple gaps her and there...who cares. Since you have seen the light ;) go with the CMC PT35 or 130 and you will make that boat come alive with PTnT. My Whaler with 40hp OMC would do about 32ish at a set trim, with a CMC 130 PTnT it bumped it up to 37+. |
Powergroove803 |
posted 07-06-2011 11:21 AM ET (US)
Qoute "thegage & Powergroove803 the curve was no problem, it deflected slightly and I diid not shim it. I did put 8 3/8" bolts in it just for my own personal obsession that I wouldn't drag it down the highway... |
Powergroove803 |
posted 07-06-2011 11:24 AM ET (US)
One more thing, the more you lever it off the back, and with an addition of a 4 stroke, you may want to think about moving your console forward to compensate for the weight shift. My buddy put a 4 stoke 25 Yamaha on his 13 and he is complaining about the weight placement, I think he is moving everything forward one foot. |
Binkster |
posted 07-08-2011 11:15 PM ET (US)
Below is a post I made on a similar thread a couple of years ago. Also if you go to the GAM section and find the thread entitled "Climbing into a 13 footer" and scroll down to my post it will show a picture of a ladder I modified and installed, and it also shows a closeup of the homemade 6" setback bracket I built. It was a very simple project. Here are plans for a home made bracket that has been used on the racing circuit for the past 3 years.This is the bracket I`m running my 4 stroke 25 Merc on and it has proven itself to me. It gives you a 6" setback. Of course its not as convenient, as one with a single bolt you can turn out on the water. The boat must be on a trailer and the motor is raised up or down with a jack. I have run every conceivable position from the cav. plate 1" above the water to 1/2" below the water. The ideal setup seems to be running the plate just so it is barely dry. http://www.dillon-racing.com/jackplate/index.htm The only change I made is to bolt a piece of 1/4" aluminum plate behind the motor board, making it a one piece unit. If you don`t want to attempt to do it yourself, a machine shop could build it for a few bucks. If I had a boat with a big V6 I would still build my own. Still very simple. All is needed is 2 pieces of 16" X 4" X5/8" channel aluminum, This would be a one piece jackplate built on the same principle as Bob Dillons bracket. On a radiused transom, you would need two aluminum shims to fill in the space on the outside of the bracket. This would be overkill with any outboard. rich/Binkie |
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