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Old 22 November 2009, 18:30   #31
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Jack plates updates

Hi guys

Just wondering if any of you have any updates on your experience with jackplates, new models, usage reports etc

thks
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Old 04 December 2009, 08:26   #32
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Hi guys

Just wondering if any of you have any updates on your experience with jackplates, new models, usage reports etc

thks
Hello from Bob's Machine Shop. We are the company that produced the jack plate on Robbie Diesels boat (post 9).

I just wanted to update you guys on some of our new jack plates, and explain some of the features/benefits of our jack plates.

We now have 3 lines of jack plates, Mini (1 - 50HP), Standard (50 - 300HP), and Extreme (350+HP including V8s)

We are currently developing a new 14 inch setback standard jack plate.

Unlike other brands of jack plates, we do not put the hydraulic pump inside the structure of the jack plate, but have it remotely installed inside the boat. By keeping the pump out of the elements it gives a long, trouble free life. Also since the pump is not as size restricted it is much stronger, and gives a faster lift time than other brands.

We give a lifetime warranty on the structure of the jack plates, and a 3 year warranty on the hydraulic pump.

Also in the April 2009 issue of TrailerBoats magazine, they did a test on 3 different style boats to see gains of our jack plates. If interested in having me send a digital copy of it, please email me at info@bobsmachine.com or you can check it out on our facebook page www.facebook.com/bobsmachineshop

You can also check out our youtube channel www.youtube.com/bobsmachine One of the videos is of ribs with 350HP Verados that I think you guys would like

Thanks for reading my spiel, best regards,

Steven
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Old 04 December 2009, 08:46   #33
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Quote:
Originally Posted by Steven@BMS View Post
Hello from Bob's Machine Shop. We are the company that produced the jack plate on Robbie Diesels boat (post 9).


Unlike other brands of jack plates, we do not put the hydraulic pump inside the structure of the jack plate, but have it remotely installed inside the boat. By keeping the pump out of the elements it gives a long, trouble free life. Also since the pump is not as size restricted it is much stronger, and gives a faster lift time than other brands.

Thanks for reading my spiel, best regards,

Steven
I would add that the Stainless Marine jack plates also have the pump on the inside of the boat as well.
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Old 04 December 2009, 10:29   #34
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Is a jackplate adjustable in the up & down plane while the boat is on the move or do you just find the correct height setting & set it at whatever that setting is?

I have an XLS outboard (25" leg), if I was to transplant it to another boat with a 20" transom could a jackplate be used to raise it up to make it suitable for a 20" transom or is the cost of the jackplate prohibitive & would it be more effective to just raise the engine up by clamping it to the transom as high as possible using the lowest of the upper holes on the engine mounting bracket? Would this method cause undue stress on the engine bracket?
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Old 04 December 2009, 11:31   #35
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Is a jackplate adjustable in the up & down plane while the boat is on the move or do you just find the correct height setting & set it at whatever that setting is?

I have an XLS outboard (25" leg), if I was to transplant it to another boat with a 20" transom could a jackplate be used to raise it up to make it suitable for a 20" transom or is the cost of the jackplate prohibitive & would it be more effective to just raise the engine up by clamping it to the transom as high as possible using the lowest of the upper holes on the engine mounting bracket? Would this method cause undue stress on the engine bracket?
Our jack plates can be raised and lowered while the engine is running at full power (hydraulic models that is)

The manual units are able to be adjusted, but normally once you find the 'sweet spot' they are left alone.

Many people use jack plates to correct exactly the same problem you have. The best option for this is the smallest setback possible (4 inch in hydraulic models, 2.5 inch in manual) This is because the further back you go, the more the water uncompresses from under the hull and lifts up. So if you go too far back, it will negate the corrections the jack is making. As a rule of thumb, every 2 inches of setback you go, you can run the engine 1 inch higher on the jack plate (obliviously not the same for all boats, but roughly).

Our Hydraulic and Versa manuals have 7.5 inches of lift

Our convertible manual jacks have 6.5 inches of lift
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Old 04 December 2009, 12:18   #36
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Excellent info! So basically I would need a manual unit with a 2.5” setback?
That way I could by trial & error find a sweet spot. How much adjustment is there vertically on the jackplate? I guess the initial location of the fixed mounting on the transom is important at the outset.
Do you have a website?
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Old 04 December 2009, 12:55   #37
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Originally Posted by Zubenelgenubi View Post
Excellent info! So basically I would need a manual unit with a 2.5” setback?
That way I could by trial & error find a sweet spot. How much adjustment is there vertically on the jackplate? I guess the initial location of the fixed mounting on the transom is important at the outset.
Do you have a website?
In our convertible manual there is 2.5 inches of lift built into the structure, then an additional 4 inches of adjustable lift.

Regarding mounting, the unit is a standard BIA bolt pattern, so it will just mount in the stock engine location. No need to drill new holes

Our website is www.bobsmachine.com

email : info@bobsmachine.com
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Old 04 December 2009, 13:44   #38
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Steven its always good to see component manufacturers participating in the forum discussions, especially when they are able to provide some insight into some advanced features like this -- however its also worth bearing in mind that any "commercial" posts fall within the forum's trade membership rules.
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Old 04 December 2009, 14:02   #39
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Steven its always good to see component manufacturers participating in the forum discussions, especially when they are able to provide some insight into some advanced features like this -- however its also worth bearing in mind that any "commercial" posts fall within the forum's trade membership rules.
I sent an email to the administrator requesting advertising info

I already can tell this is a great forum and am happy to work as a sponsor here.
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Old 04 December 2009, 14:13   #40
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I sent an email to the administrator requesting advertising info

I already can tell this is a great forum and am happy to work as a sponsor here.
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