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ContinuousWave: Whaler Performance
CMC Jack Plate w/ Tilt/Trim
|Author||Topic: CMC Jack Plate w/ Tilt/Trim|
posted 12-10-2002 07:59 PM ET (US)
I currently have a 20" shaft Merc 35 on my 15" transom BW 13'.
Motor sits above transom several inches. Cavitation plate about 1.5" below bottom of boat.
I've been looking at the CMC PT-130 jack plate with tilt/trim.
Anyone have experience with this. I currently have tilt/trim, but it is a big unit that takes up space and has 4 $50 hoses (just replaced 1).
I'm thinking this would raise my motor out of the water more for better efficiency.
posted 12-11-2002 10:35 AM ET (US)
What is the weight on that unit/ You will also have to relace the power tilt shocks with standard ones. good thing is they are cheap at any scrap yard and any engines will fit(1 size fits all). I put ones from a 115 on a 50hp.
posted 12-11-2002 11:44 AM ET (US)
This may be a real stupid question, but why would I need the tilt shocks. If the jack plate has the built in tilt/trim mechanism, why do I need the others?
posted 12-11-2002 02:49 PM ET (US)
Because the ones on there are hydraulic for the tilt & trim. If you leave them they will lock in place and if you hit something they will not "pop" the engine up. You don't have to but I would want to. Preferably you might want to just get a 6"+ jackplate and keep the trim system you have(I know it is ugly and cumbersome and expensive to fix). Better idea might be to find a newer engine with a 15" shaft. The problem I have with the old merc external pumps is they will go under water if the boat swamps....solenoids are not cheap either.
posted 12-11-2002 02:54 PM ET (US)
Yes you can just disconnect the shocks and leave nothing there. Sorry but I overlooked your question some.
posted 12-11-2002 04:56 PM ET (US)
Thanks. I was hoping I could just remove the shocks, and the entire trim system and just use the trim on the jack plate.
Appreciate your help.
posted 12-20-2002 12:28 PM ET (US)
I use the PT-130 on my 71,16'-9" BB. The 70 hp has no T&T. I cost less than the Factory T&T and the unit allows me to place the cav plate where it performs best for me and my load. The unit sets the engine back about 6" so you can raise the engine up quite a bit to get a little bot better draft accross the shallows. Best of all the unit is totaly sealed.
posted 12-20-2002 12:29 PM ET (US)
I use the PT-130 on my 71,16'-9" BB. The 70 hp has no T&T. It cost less than the Factory T&T and the unit allows me to place the cav plate where it performs best for me and my load. The unit sets the engine back about 6" so you can raise the engine up quite a bit to get a little bit better draft accross the shallows. Best of all the unit is totaly sealed.
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