osprey 250 repower

[terry tessarzik]

I am considering replacing the  twin OMC Seadrive 140's on my '89 osprey 250. Any thoughts on repowering? 1 large single versus twins: E-tec vs Yamaha 4 strokes etc... I would appreciate any comments. thanks, Terry (new member, owner of a 20' AS striker as well)

[resyak]

Hi

I recently changed my old rude for a suzuki Df 225.
Here a post where I explain the reasons why I chose this motor.
The fuelconsumption is 3.8. mpg at cruisingspeed 27 m/h. When trolling its less than a gallon per hour ( 1000 rpm ).
Top speed is about 43 m/h.

viewtopic.php?t=5035

Advantage of twins: I one fails you have the other, so you never will have a problem to come home.

Disadvantage: More weight, more fuelconsumption and higher maintenance cost.

Hope my comments are helpful.

Regards

[Mad Dog]

I am considering replacing the  twin OMC Seadrive 140's on my '89 osprey 250. Any thoughts on repowering? 1 large single versus twins: E-tec vs Yamaha 4 strokes etc... I would appreciate any comments. thanks, Terry (new member, owner of a 20' AS striker as well)

To maintain the balance of the hull your replacement options need to tip the scales at nearly the same weight as the I/O's.  First determine the weight of the equipment you are removing.  Second, determine how you want the outboard(s) installed; Porta-Bracket, Flotation bracket, or cut-out the transom.  If you choose a bracket, you will need the over-all weight of the the new power to be 60 to 120 pounds lighter to keep the boat balanced.  That may be hard to achieve with twin engines.  My 225 Suzuki weighs in at 460 lbs (as I recall).  Weight is major consideration and know the brackets exaggerate the affect.

MD  

[resyak]

Hi

The suzuki 225 weighs 580 lbs, the yamaha weighs 604 lbs, the Suzuki 300 604 lbs ( Yamaha 804 lbs ).

Regards

[Mad Dog]

Hi

The suzuki 225 weighs 580 lbs, the yamaha weighs 604 lbs, the Suzuki 300 604 lbs ( Yamaha 804 lbs ).

Regards

Is that the 2 or 4 stroke Suzuki @ 580?

MD  

[buffalo bill]

Hay, I'm Italian and my boat it's a 250 osprey... I don't now something abaut it, have You some photo or manual, weight ecc..?
Many thanks, Pier.

[RickK]

To maintain the balance of the hull your replacement options need to tip the scales at nearly the same weight as the I/O's.  First determine the weight of the equipment you are removing.  Second, determine how you want the outboard(s) installed; Porta-Bracket, Flotation bracket, or cut-out the transom.  If you choose a bracket, you will need the over-all weight of the the new power to be 60 to 120 pounds lighter to keep the boat balanced.  That may be hard to achieve with twin engines.  My 225 Suzuki weighs in at 460 lbs (as I recall).  Weight is major consideration and know the brackets exaggerate the affect.

MD  

OMC Seadrives
http://rides.webshots.com/photo/2253534740091848696LOEBGf

Look at the image at the top of the page at this link
http://www.google.com/imgres?imgurl=http://continuouswave.com/whaler/reference/images/omcSeaDrives387x342.jpeg&imgrefurl=http://continuouswave.com/whaler/reference/engineBrackets.html&h=342&w=387&sz=32&tbnid=Z7yMs3jZklwAiM:&tbnh=109&tbnw=123&prev=/images%3Fq%3DOMC%2BSeadrive&usg=__z4B3rErrLJurosK0iRNnQ2UPFDQ=&ei=cYRXS9_MG4eVtge249GsBA&sa=X&oi=image_result&resnum=5&ct=image&ved=0CBkQ9QEwBA

[RickK]

Welcome aboard Pier  :!:  :!:
Makes about 3 or 4 members now from Italy  

What year Osprey do you have?  Have any pics?  That's a big Osprey  8)
You and Terry can compare notes here.

[resyak]

Hi

It's the 4 stroke

Regards

[Mad Dog]

OMC Seadrives

Okay, no more posting when I should be working.    

MD  

[Asport-Rog]

The E-Tec 250 weighs in at 518#  

[resyak]

Hi

Your seadrives weigh around 300 lbs each.
So you won't have problems with a big single.
I think that 200,225,and 250 4 stroke weigh the same.

Etec's are lighter, but they are 2 strokes.

Regards

[buffalo bill]

Tanks Rick, thanks guys,
I think my osprey it's about 22 or 23 year old, it have the hull with the lower half bow in grey like models '85/'86 but it have a vee of about 19 degree like CCP, and next week I can test the weight without engine.
I have some photo but I dont know to put on this post... someone can help me?

[Capt. Bob]

I have some photo but I dont know to put on this post... someone can help me?

E-mail them to me Bill,
I'll post them.

rb53@comcast.net