CMC trim/tilt unit. Anyone with experience?

[djcamera]

Integrated TT on my 1986 Mercury 75hp finally breathed its last. Long story, but it's dead. So I hung the motor on an aftermarket unit that I found in storage. It's a CMC PT-130, age unknown. Ran the wires and jerry-rigged the control handle rocker switch, and it seems to work really well, at least on the trailer! But I have no experience with this type of tilt/trim (actuator box, no serviceable cylinders).

I read the manual for the unit, and feel good about it, but would love to hear the opinion of someone who has one himself. Is there any service/PM I'll need to stay on top of? Any known issues with this thing? Thank you.

 

[LDUBS]

Not sure if this is what you are looking for. You might want to check out "Power tilt-trim relays explained" by Dangar Marine on YouTube.

You will also find a number of You Tube videos about installation and troubleshooting the CMC units.

 

[C&K]

We've had one on our Alumacraft for years. Never had a single problem with it.

 

[C&K]

I'll add that in my case, it had a Force 50 hanging on that PT-130 for 17 years before I hung the Merc on it. When I rebuilt the Merc I completely removed the hydraulics and pump assy from it because it didn't work anyway. The Merc is a four-cylinder 44 cube powerhead, it got bored .020 with new Wiseco pistons and new reed blocks on the crank with two-stage racing reeds. Plus I did a little port work on it and reworked the carbs for E15 fuel. It's got a little higher compression ratio than stock so I needed to go to E15 to run 34 degrees of timing advance. It dyno'd 67.8 hp at the prop shaft on the Taylor dyno. So I rebadged the Merc as a 60.

I found a photo of back when I did the swap.



As LDUBS kinda mentioned there is two 40A tilt/trim relays that have to be in the circuit for the hydraulic pump motor on the PT-130. I sure hope when you "jerry-rigged" it you got those in there.