power trim motor evinrude 115

[lac8362]

Has anyone ever replaced a TT motor in a 115 evinrude i have a 89 oceanpro 115 the Tilt trim motor is on its way out i have a brand new OMC motor ready to install any thing i should know it looks quite simple four bolts and 2 wires i also have a new o-ring kit Is there any bleeding to be done? or any other tricks thx mike

[Capn Mark]

It is pretty simple if you can get to all the screws.  You may have to remove the engine to get to everything.  You should always bleed the system after replacing the motor.  Good luck, it will take about 2-3 hours at most if all goes well..

[lac8362]

yes the ones toward the back look hard to get to. not quite sure how to bleed the system any help would help thx mike

[Georgie]

Mike,

If you can find the model number of your engine you can look it up on http://www.boats.net and they have schematics/parts diagrams and parts descriptions/listings for all years and makes of OMC engines. You can use the parts diagram to find the things your curious about.  If I found the correct version of your engine, I think the manual release (bleed) valve might be just below the motor you're planning to replace and on the port side of the T&T unit.  Back it off 2 or 3 turns (no more) if you need to release any pressure or allow any air to escape. If you find fluid oozing out, then tighten it back up to factory torque spec and use the switch to try and raise/lower it a few times.  Repeat as necessary.

Good luck!

[slvrlng]

Easiest way to get to the back bolts on the motor is to remove the top pin on the ram. You will need to get a step ladder to support the motor. Then loosen the manual relief screw. It takes 3.5 turns from closed to open. Open it all the way. You will have to spray it first with PB or WD40 so you can move it. Raise the motor by hand with help and tie it off to the step ladder. At this time spray the ends of the pin and clips on the ram. Remove the clips carefully and then drive the pin out. This can be a real pain with corrosion. Once removed the whole TTU will just rotate away from the transom. This is a good time to also spray or coat the lower pin and clips. Installation is the reverse. Trust me if I can do mine you can do yours! Good luck and we need pics!!!

[lac8362]

What a job getting the pin out had to rent a puller from auto zone i did come out although i snapped three out of four bolts on the drive motor going to try easy outs and heat

[Georgie]

Mike,

Did they break off at the screwhead, or further down in the T&T body?  If there's enough thread left exposed now that you've got the motor itself off, you should try to treat it repeatedly w/liquid wrench or other anti-seize/anti-corrision chemical, then heat the aluminum body w/torch, grab remaining screw w/vise grips, and wiggle it little by little until the frozen screw moves.  MUCH better than trying to drill and tap unless you have some REAL good equipment in your shop.  Did the same thing with my v4 crossflow T&T last time, but ultimately managed to get them both out.  If they both broke off further down, disregard and good luck!

[Capn Mark]

You can also have some one who can weld stainless get the out by welding nut onto the exposed threads or building a nipple on the broken bolt to put the nut on.  The heat from the welding will loosen the bolts to let them come out easily.  I have never know anyone to drill an tap with any luck except for those with specialty shops and high dollar tools. If all fails I just talked to a guy who was selling a complete unit off of a blown motor.


Good Luck

[lac8362]

i had to drill through 2 of the old bolts and got a couple of SS bolts and nuts cant drill out one on back right side its casted into the housing so 3 bolts are now holding the motor in place and a half stud or broken bolt is just there now i used ultra black to seal the motor to try to prevent water from going in seems to work fine the old motor had alot of rust inside the housing i cant believe it was working up to 2 weeks ago Also i did use a can of Pb to try to work the bolts out and some heat they just snapped further down i see how long this fix will last Ah salt water can bond anything