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  Setback/jackplate for 70 OMC on Classic 15' SS Ltd.

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Author Topic:   Setback/jackplate for 70 OMC on Classic 15' SS Ltd.
Bill C posted 03-17-2004 10:40 PM ET (US)   Profile for Bill C   Send Email to Bill C  
On opinions from Bigshot and others am finally (after steering failure that caused me to miss Homosassa) raising the 1988 70hp Johnson to the third (from the top) hole. The problem is the lower bolt mounting problem because of the transom well and the blind holes on the motor. As I do not want to drill additional holes in the transom to raise the motor, am looking for a setback bracket or a manual jack plate with the least setback. Preferably less than 4" because of the 10' steering cable and fitting the boat into the garage. I could drill additional holes in the engine bracket itself, however, that would limit how much the height could be adjusted. Any thoughts and sources would be appreciated. Probably would be easy to fabricate a simple bracket out of 6061 3/8" channel.
peteinsf posted 03-22-2004 02:54 PM ET (US)     Profile for peteinsf    
Check out

http://www.cook-mfg.com

Pete

Bill C posted 03-24-2004 05:12 AM ET (US)     Profile for Bill C  Send Email to Bill C     
Pete - Thanks for the info. Bill
Capt_Tidy posted 03-24-2004 03:16 PM ET (US)     Profile for Capt_Tidy  Send Email to Capt_Tidy     
Bill... I've been looking for a similar rig for my 15... I would actually like tilt the engine completely out of the water (it just breaks the surface now) but find $/effort maybe not worth it. But I'm with you... and would hate to drill new holes.

Everyone... Is there any advantage of a 10 inch set back on a 15 - re: performace? For 250 bucks the 10 inch manual looks likea nice package. Anyone done this?

Ian

Bill C posted 03-25-2004 08:35 AM ET (US)     Profile for Bill C  Send Email to Bill C     
Ian - On the advice of several boaters, including one builder, here in the Tampa Bay area I have decided go with the "4 in 1 Convertible Jacking Plate", Model # MJ5, from Bob's Machine Shop (www.bobsmachine.com). Sounds like a small operation but is not. They ship worldwide. As the product name implies there are four setup options. I choose it because of the 2.5 inch setback, manual adjustability, and 20 # weight. I did check out the CMC manual jack plate, however it is big, is set back 4 " and weighs 38 #'s. The stern of my boat is loaded - starting battery, deep cycle, and a 12 gal. tank so any advantage to hanging the motor further out is offset by all the weight. Should have it installed next week. Will post the results.

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