1993 Johnson 88 HP SPL - Adding power tilt & trim?

[mhs52]

I recently purchased a pontoon boat with a 1993 Johnson 88 HP SPL M# J88MSLETE, S# G93188269. I purchased the boat without physically inspecting the boat prior to purchase and had someone pick the boat up for me. I assumed it the motor had power trim and tilt. Unfortunately it did not have power TnT
Now I want to purchase a used TnT assembly and add it to this motor. I am not sure which assembly will fit this motor. I understand that most of the Johnson SPL motors did not have power TnT so I need to make sure that I can make this upgrade. I would prefer to find a used TnT assembly due to cost rather than purchase an aftermarket kit in the $800-$900 range. Any help would be greatly appreciated.

 

[racerone]

Any one of the units from the early 1980'sto the 1990's will fit.----3 cylinder , 4 cylinder and 6 cylinder motors.

 

[V153]

Believe '78 and up will work. '77 V4 will too but will be 3 wire motor. Think '93 model year is when they went to the next gen "FasTrac" system. Which is a better/faster design. And will fit. But expect to pay more for one.

What's your location. Believe I have at least 2, possibly 3, working units that'll fit. '78, '83, and '86 if I'm not mistaken..

 

[Faztbullet]

Depends on the clamp brackets, Fasttrac unit wont fit old style brackets....

 

[V153]

Keep in mind you'll need the wiring harness and relay box as well.

 

[mhs52]

Believe '78 and up will work. '77 V4 will too but will be 3 wire motor. Think '93 model year is when they went to the next gen "FasTrac" system. Which is a better/faster design. And will fit. But expect to pay more for one.

What's your location. Believe I have at least 2, possibly 3, working units that'll fit. '78, '83, and '86 if I'm not mistaken..

I am in Asheville, NC. Let me know what you have that will work. I can upload a photo of the one that is supposed to work on this motor. Do you have the wiring harness, etc? Thanks..

 

[V153]

Depends on the clamp brackets, Fasttrac unit wont fit old style brackets....

Thanks FB. Good to know. I been eyeballing a FasTrac thinkin it'd bolt up.

Yo MHS I'm in South Florida. Have a good external (boat mounted) trim relay box but that's about it. Pirated/gave away the rest. I'd imagine your motor has lugs/bosses on the exhaust cover on which to install an internal (motor mounted) box.

Does your control lever have a trim switch in it? If so y'oughta have the additional harness. Or at least the plug/connector. Find it hard to believe a '93 wouldn't.

 

[jbcurt00]

Guys please dont discuss swapping, trading or selling the parts and pieces in the open forum.

Via PMs only

 

[mhs52]

Thanks V153...This motor was a manual tilt and the control lever does NOT have a trim switch. I plan on putting a trim switch on the console so I will have make my own harness running from the trim motor to a relay and through a trim switch and battery power source. This is a photo of the tnt pump and motor

Thanks, Mike...

 

[emdsapmgr]

The later power trim units use a 2-wire motor. They came out mid-year 1981. Their control box is newer and utilizes two relays. The box mounts to the back of the exhaust manifold on the engine. Likely your cover will not be drilled for this box, so you'll have to adapt. Be careful when evaluating the conversion. The swivel brackets are different part numbers between the power trim units and your basic 88 model. The swivel bracket must be able to adapt to the two trim ram pistons. (the bracket needs to have two rub surfaces for the tips of these two rams.) Hard to tell from the factory parts diagrams just whether the basic swivel bracket will actually work with a trim system or not.. It's sort of a big deal if you have to change out the swivel bracket, too.

 

[mhs52]

The later power trim units use a 2-wire motor. They came out mid-year 1981. Their control box is newer and utilizes two relays. The box mounts to the back of the exhaust manifold on the engine. Likely your cover will not be drilled for this box, so you'll have to adapt. Be careful when evaluating the conversion. The swivel brackets are different part numbers between the power trim units and your basic 88 model. The swivel bracket must be able to adapt to the two trim ram pistons. (the bracket needs to have two rub surfaces for the tips of these two rams.) Hard to tell from the factory parts diagrams just whether the basic swivel bracket will actually work with a trim system or not.. It's sort of a big deal if you have to change out the swivel bracket, too.

You are correct in that the two swivel brackets are somewhat different based on the different part numbers. If the power tilt swivel bracket is needed to work make the change, will the transom bracket also have to be changed?. That would be the whole tilt n trim/transom bracket assembly to change out. I am not sure how difficult it would be to find the entire assembly and may be cost prohibitive to buy the parts one piece at a time. Thanks for your review Emsapmgr. Any suggestions anyone? Thanks...

 

[racerone]

????????----------There is a slight difference in the swivel bracket.----Simply that is based on a different trailering bracket !!!----------------When there is an extra hole drilled or not driilled and tapped there is a different part # given.-------------So you will not need to change the swivel bracket if you study this carefully !!!----Should be simple !

 

[mhs52]

Thanks for the input Racerone. I could not tell by physically looking at my basic swivel bracket and numerous photos of the power tilt swivel bracket of the differences having never worked on either one. Anyway, if the original basic swivel bracket will work, then it is a much more workable project. I just got to find the hydraulic pump assembly with the motor and reservoir intact and piece it all together. Understanding that I will still need wiring harness and relays. Thanks guys. This continues to help me in my efforts to correct my original mistake of assuming the motor had tilt n trim and did not verify it before making payment.