Porposing: Motor too high, or too low?

QC

Supreme Mariner
Joined
Mar 22, 2005
Messages
22,783
Re: Porposing: Motor too high, or too low?

I agree that shifting weight to the front could help, but it's a brand new boat, and I barely have anything in it. I refuse to add weight to the bow as this seems like a band-aid solution.

Failing that, trim tabs seem to be the most popular fix.
Don't confuse new with right. 4 cycles are heavier. Trim tabs all v-hulls.
 

ufm82

Master Chief Petty Officer
Joined
Jul 29, 2003
Messages
827
Re: Porposing: Motor too high, or too low?

Agree 100% with QC-many, many, many new boats are set-up wrong when they are rigged. That's were many problems come from. People who buy a boat expect it to be right and may or may not know how to fix a problem. That's why this page is great- lots of informed opinions available. (And some not so informed. LOL)

UFM82
 

gss036

Commander
Joined
Jan 18, 2003
Messages
2,914
Re: Porposing: Motor too high, or too low?

I RE-POWERED 1 1/2 years ago and went from a 200 hp Merc to a 225 Honda. Lot of difference in the weight. They just mounted the motor the same as the Merc, which created proposing. after a lot of forum talk, etc, went back to the people who mounted the engine and they willingly (was reluctant at first) raised the engine up a couple of notches, that did not completely sole the problem. After a suggestion of going to a 4 blade stern lifting prop from the SeaCraft members, I then went that route and traded my new 3 blade stainless for a Honda/ PowerTech 4 blade and that solved the problem for me. You just have to keep working at it until you get it right.
I found the 4 blade prop much better for performance and fuel efficient since you can cruise at a lowered RPM/speed.
 

Jer_H

Cadet
Joined
Aug 5, 2010
Messages
16
Re: Porposing: Motor too high, or too low?

I had no idea a new boat was going to be this much work. Unfortunately the dealer I bought it from is an hour and half drive each way. Towing the boat I'm burning 3/4 tank of gas on my vehicle each trip there, not to mention my time.

After the first three tips I just used a local licenced Mercury tech at my marina to hoist the outboard up one notch. But I get dinged for $65.00. The dealership would do it for free, but it's actually cheaper to have it done locally.

After re-reading post #9 from Fisher, it sounds like my next attempt will be to the top hole, and get the motor up as high as possible instead of one at a time. His boat is very similar to mine, and has same issues.
 

Fed

Commander
Joined
Apr 1, 2010
Messages
2,457
Re: Porposing: Motor too high, or too low?

You should check the hull to make sure it has no rocker in it.
 

WIMUSKY

Moderator
Staff member
Joined
Sep 26, 2009
Messages
20,314
Re: Porposing: Motor too high, or too low?

I just want to keep this thread alive. I'm very curious how it will be resolved since I have similar issues. Except I have a 16' with a 4 stroke 60hp. Mine is a weight distribution issue(however, nothing can be redistributed, boat design issue). I wont hijack this thread, so please keep us updated....:)
 

QC

Supreme Mariner
Joined
Mar 22, 2005
Messages
22,783
Re: Porposing: Motor too high, or too low?

You should check the hull to make sure it has no rocker in it.
This would be a new boat issue that the Dealer/manufacturer would definitely need to correct.

The other stuff would seem to be Dealer setup issues as you describe as well as this thing screams for trim tabs. Don't think of them as a band aid or fix, think of them as a wonderful tool that you want on any V-hull. I can't stress this enough. Those that comment negatively about trim tabs either don't have them or do not know how to use them or have them installed improperly.
 
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