Re: whats holds my 135 to the bracket
Ok, So as I mentioned before, you lack the "Gizzards" to latch to the tilt pin.
Now, that motor would have come with a shock absorber that would not provide as much tilt pressure relief as the non-trim version.
Many folks ran those earlier motors in the "tilt/up" setting to ensure it would come out of the water easier should the lower unit strike an underwater object...They would also live with a motor that would tip up upon strong reverse power. In the 70's it was like 90% that would not lock it down.
As the motors came equipped with shocks that produced significant upward force (thus easier to tilt), locking it down became more of a necessity.
On to your motor... While I have seen the CMC units, you'll need to check with CMC to determine if the unit is designed to lift upon striking an underwater object.
That said, I can assure you you do not want to hunt down the parts and install them to lock down the motor. VERY complicated.
For the moment, and others may have other suggestions, you could simply use a big zip tie(s) likely running from the top tilt pin position across to the opposite tilt hole and back. Generally speaking, only the colored ties(black most common) are rated for exterior use(UV protection).
For the era, your combo was unusual -still - great motors that would only die from neglect.
Hope that helps.
