raising the motor

[spotshot]

Im new to outboards,my question is.Ive seen post talking about raising the motor one or two holes what is this ,how is it done and what does it do?

 

[spotshot]

Re: raising the motor

I forgot to mention it's a 98 150 ocean runner.

 

[boobie]

Re: raising the motor

You may get more speed out of the boat if you don't over do it. A lot of factors involved.

 

[emdsapmgr]

Re: raising the motor

Most raise the engine for more speed and fuel efficiency. Usually that works when you convert to a high tech stainless prop. Those props will run well even if part of one tip of the blade is out of the water. Most folks are satisfied with the results. You need to be careful, however. If you raise the engine too high, the top holes of the water inlets can get exposed and could cause a catastropic loss of water pressure. If you want to experiment with raising the engine, best to invest in a water pressure gauge and monitor it closely.

 

[spotshot]

Re: raising the motor

what is involved with raising the motor?Will i need to remove the motor or am i missing something?

 

[bob johnson]

Re: raising the motor

here is a picture showing the "holes" in the transom bracket of your outboard....if you use the bottom hole to mount your boat to the transom..then the motor sits higher than if you used the top holes....this motor has 4 sets of holes...it is an ocean pro...which is the exact same thing as an Ocean runner.

As for raising it to high that you wont pick up water in the inlet....I find that hard to believe.. I added a jack plate with my outboard...and I used the lowest holes on the motor and the highest set of holes on the jack plate....and i didnt run out of water even at full height....but at half the height my prop did wash out( cavitate badly)....but the water pressure was very good still....

the OPs motor has lifting loops cast into the block on both sides
bob

 

[emdsapmgr]

Re: raising the motor

Yes, you'll have to unbolt the engine and lift it to a higher position. An automotive type engine hoist works, but many inventive folks figure out other ways to lift the engine from trees, garage ceilings, etc. Your engine may not have a lifting eye, so you'll have to check your factory service manual as to the specific type of fixture needed (to bolt to the flywheel) for your specific engine.

 

[droach77]

Re: raising the motor

Easy and safe way is to get a buddy over just to help balance. While on the trailer crank down the front of the trailer and then put some wood blocking under the skeg, loosen all bolts and then crank the trailer back up until the motor is where you want it. Seal up the bolts real good and that's about it. It's really easy this way you just need some help with the balancing part but honestly it should remain fairly still while you do it.

Good luck

Dave

 

[V153]

Re: raising the motor

Easy and safe way is to get a buddy over just to help balance. While on the trailer crank down the front of the trailer and then put some wood blocking under the skeg, loosen all bolts and then crank the trailer back up until the motor is where you want it. Seal up the bolts real good and that's about it. It's really easy this way you just need some help with the balancing part but honestly it should remain fairly still while you do it.

Good luck

Dave

Yup, that's the minimalist way to do it. On your motor you will need to remove the top bolts, loosen the lower ones. Make sure you reseal them all after. Also check to see how it effects your steering cable'n linkage. Since it doesn't sound like yer gettin too radical that shouldn't be an issue. But sometimes that can be a trouble spot.

Good luck