Can I remove hydraulic trim and use cmc Pt 130

[Stryker raider]

1983 mercury 115 inline 6
Serial # 6412011


I would like to know if anyone has completely removed the hydraulic trim and tilt from the motor mounts and transom

And replaced with the CMC PT 130

 

[Stryker raider]

Here is the system I want to remove

 

[GA_Boater]

Welcome aboard.

What's wrong with it?

 

[Stryker raider]

Thank you!

The hydro lines are bad and here is the motor I just opened up.

Not 100% sure but I believe the Hydro lines are roughly $50-$70 apiece and there's four of them. I believe I could replace the motor for roughly $60 possibly have to get new gaskets and a few other things all that being said I can grab a used CMC PT 130 for 200 bucks


I guess my real question is can I specifically remove the hydraulics from the motor mount on the transom just to keep that area clean of the old system

And has anyone had issues installing the CMC on that era of mercury 115

 

[GA_Boater]

You can find a CMC PT130 for 200 bucks? I'm not sure it can be trusted - Used ones usually go for 4-500. And they can't easily be rebuilt.

Any hydraulic shop and some auto parts stores can make new hoses using the old ones and reusing the fittings. I would do that and get the new trim pump motor.

Adding a CMC to a TnT motor means you will have no reverse lock, which can make the motor lift up in reverse. One more thing to figure out - Making a reverse lock.

 

[Stryker raider]

Price is definitely good and would need to be tested for sure.

One of my main concerns is the cost of rebuilding that system and then still having all those lines and the giant pump to deal with. I'm virtually certain the improper installation led to the demise of the pump motor... it was on its side.

Making new lines and getting a new motor is more than the used cmc and it seems like an upgrade over a working original system.

Removing all the lines and clunky pump seems to good to not replace with the cmc...if it's a good one.

 

[Stryker raider]

No Title

Would a stainless bolt through here on either side work as a reverse lock. Seems like it would.

 

[Teamster]

I'd just fix what you have,....

Like has been said, Any decent auto parts store can make new hoses easy and cheap,....

The pump can be rebuilt.

 

[GA_Boater]

It takes more than that. Right now reverse lock is part of the hydraulics. If you remove it, you need to add some parts, A reverse lock hook, rod, and cam from the lower unit, plus some other small hardware. And a trim pin that goes through those holes and the hook latches onto the trim pin.

After you do all that, then the CMC will work.

 

[roscoe]

The CMC units seem to be fraught with problems.
Perhaps they are better now, but a few years ago.....

Current models are electric/hydraulic.

I believe years ago, they were electric only. Maybe someone else can confirm.

 

[GA_Boater]

I'm pretty sure CMC always had an electric hydraulic pump. The problems stem from the fact that CMC designed and built their own pump and major parts are only available through them. And they don't have parts for the older pumps, which throws the monkey wrench at trying to repair an older model.

That's why $200 for a CMC TnT unit is way below market value. If I was looking at one like the OP, it better have a motor on it. A worn unit can raise and lower it's own weight, but put a 250-300 pound motor behind it - How does it work then?

 

[Stryker raider]

I wasn't aware the pt 130 had a bit of a bad rap. I'll test it throughly before making a decision.

Couldn't the reverse lock parts be bypassed considering the transom mount will be attached to the pt 130. Seems the only thing needed would be to pin down the motor permanently to the transom mount with some makeshift trim pins.

 

[merc850]

Since you have the pump already - stand the motor body up and let the oil drain out then flush it with a mild solvent (Dawn dishsoap) remove the tank and check for crap (watch out for the little ball at the top of the shaft) but don't disassemble the control valve assem., the end cap with brushes might be available from a Merc dealer I got one 4yrs.ago and you just crimp it on to the + lead. If the hoses are just missing the outer cover they should still work.
If you lock the motor down and hit something it could cause major damage to the motor and/or boat. You should have a notch pin installed even with Power Trim to stop the motor from hitting the transom; PT is one of the best features on an outboard!

 

[Stryker raider]

[No message]

 

[Stryker raider]

It worked for the last 3 years. Just sold the boat and on to the next build.