Last weekend I replaced the tilt/trim motor on my 70 Yamaha. I could not stomach paying nearly $400 for an OEM motor so I bought an aftermarket one for around $85. Put it on an lo and behold it leaked. Of course I had to take it all off and start over only to discover that the supplied rubber o-ring and the OEM 0-ring were vastly different (see photo). I bought a replacement OEM o-ring and all is right with the world, at least for now If I had looked closer to begin with, I could have avoided all the frustration as I should have noticed the difference.
If you ever have to replace your TT motor, someone passed on some great instructions that make getting to the back bolt so easy (no pulling the motor). Anyway, I just thought I’d pass along my experience.
OEM O-ring on left, aftermarket O-ring on right
[URL=http://s390.photobucket.com/user/d4dham/media/BOAT%20STUFF/Tilt-TrimOring_zpsfb40fd37.jpg.html]
[/URL]
“Apathy is the Glove in Which Evil Slips It’s Hand”.
If I had done it right the first time, it would have taken about an hour or less. I did put a couple of coats of galvanizing paint and then a good topcoat of engine paint on it before the install. The factory paint looked a bit thin. If you have even moderate skills with tools, this is dirt simple.
“Apathy is the Glove in Which Evil Slips It’s Hand”.
“If you ever have to replace your TT motor, someone passed on some great instructions that make getting to the back bolt so easy (no pulling the motor). Anyway, I just thought I’d pass along my experience.”
Is this just a tease to get people to call you out
Well for all you smarty pants, I figured if you wanted them you’d ask. Initially, all I got was some weird comment from PP. Didn’t want to post them if no one cared.
Here they are.
My trim motor on my 70 hp Yahama 2 stroke has been badly rusted since I bought my Maverick skiff. I read some tips here on how to replace the motor without pulling the outboard off the boat, as I have a poling platform that makes motor removal difficult. The tips were helpful, if a little vague. I was able to replace the motor successfully, and took some pics to help anyone else that has to replace the trim motor on a Yamaha 70, which should be the same for a 60 or 90 2 stroke.
I bought a trim motor from Rareelectrical.com for $85 (OEM was $360). First step is to paint the motor, as the paint on it is very thin and wouldn’t last long. I had some Suzuki outboard spray paint that matched the Yamaha paint perfectly, so I sanded the motor, wiped it with acetone, then painted the motor with 3 thin coats. I would have preferred to prime it first, but didn’t have any handy.
(02.jpg) Raise the motor & support it on the trailering bracket, then pull the large pin that connects the tilt rod to the outboard (01 & 02). Lower the rod by pressing the down button (or unscrewing the trim release screw if the motor’s dead).
(03.jpg) Unscrew the 6 bolts holding the trim assembly (03). Remove the nut(s) and push the bolt back from one lower mounting bolt (04). I didn’t feel a need to support the motor when on 3 bolts, but that’s an individual decision. If the trim stop pin is frozen (mine was) you’ll need to free it up (05).
all that is dead on, only thing I will add for the do-it-yourselfer, is use caution when removing the mounting bolts.
its pretty common that they have corrosion and they break, which is why we normally remove the motor from the transom.
Dang, I am sorry to hear that. If it makes you feel any better, my 15 hp Mariner doesn’t have TT.
Maybe we could setup a fund raiser. The Fundraiser to End Manual TT. I’d say maybe Govt. assistance but not sure you qualify. Maybe one of the liberal 1%er’s here on CF will kick in? Bolbie???
“Apathy is the Glove in Which Evil Slips It’s Hand”.
Nice work. I spend most of yesterday afternoon fiddlefarting with my little sneezer of a motor. It’s amazing how one broken throttle linkage can cost you a whole afternoon. But today, fishin!
“Sire, it belongs in truth to the Church of God, in whose name I speak, to endure blows and not to inflict them. But it will also please your Majesty to remember that she is an anvil that has worn out many hammers.”…Theodore Beza
