Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors

Go Back   Boat Design Forums > Design > Propulsion > Outboards
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 09-30-2009, 02:59 PM
hegazi_arc hegazi_arc is offline
 
Join Date: Sep 2009
Rep: 10 Posts: 1
Location: Egypt
plz help me..mercury or johnson?!!

Hi am a new member..
i bought an inflatable rip from about 1 month ago but i didnt buy the engine yet..
so am confused cause i have to take a decision between 2 used engines..
30 hp johnson or 40 hp mercury..
actually am not confused about the diff. between the power..but of about the brands!!..i dunno which is better as am a new guy in the marine world and i dont have any background of them..which is better?!!..
i have a friend own twin's of johnson 70 hp on his boat but he is going crazy from them..as they always stops or something happen in them..but am quite sure cause they are too old..
can anyone help me please..
the johnson model is 2001
Reply With Quote
  #2  
Old 09-30-2009, 08:33 PM
PAR's Avatar
PAR PAR is offline
Yacht Designer & Builder
 
Join Date: Nov 2003
Rep: 2891 Posts: 8,792
Location: Eustis, FL
Which ever has the lowest hours on it will be the better choice. The brand really doesn't matter much if you take care of it.
Reply With Quote
  #3  
Old 09-30-2009, 09:56 PM
Submarine Tom Submarine Tom is offline
Mariner
 
Join Date: Aug 2008
Rep: 777 Posts: 1,543
Location: Victoria BC Canada
Mercury
Reply With Quote
  #4  
Old 11-05-2009, 02:12 AM
blared's Avatar
blared blared is offline
ALFA
 
Join Date: Aug 2005
Rep: 14 Posts: 2,458
Location: Orlando
Yes It doesn't matter as long as they been serviced right. Good luck
Reply With Quote
  #5  
Old 11-06-2009, 10:14 PM
JLIMA's Avatar
JLIMA JLIMA is offline
crazed throttleman
 
Join Date: Oct 2009
Rep: 130 Posts: 101
Location: New Bedford Ma.
Personally Merc. but that's just because of personal preference, but it doesn't matter as long as you take proper care of it.
__________________
Answering AAII based on reserve steam
Reply With Quote
  #6  
Old 11-07-2009, 04:42 PM
gonzo's Avatar
gonzo gonzo is offline
Senior Member
 
Join Date: Aug 2002
Rep: 1397 Posts: 7,215
Location: Milwaukee, WI
They are about the same in quality if we are talking about fairly new engines. You need to give more information. Are we comparing a 1966 Mercury to a 2001 Johnson?
__________________
Gonzo
Reply With Quote
  #7  
Old 11-07-2009, 05:02 PM
ondarvr ondarvr is offline
Senior Member
 
Join Date: Dec 2005
Rep: 226 Posts: 633
Location: Monroe WA
Also, is there a good local dealer for both....if the motors are equal then choose the better dealer's brand.
Reply With Quote
  #8  
Old 02-24-2010, 02:14 AM
tunnels tunnels is offline
old one !
 
Join Date: Feb 2009
Rep: 353 Posts: 1,515
Location: china is great and interesting !!
Mercury will be an inline 4 and smooth running !!
Reply With Quote
  #9  
Old 02-24-2010, 03:22 AM
CDK's Avatar
CDK CDK is offline
experimental engineer
 
Join Date: Aug 2007
Rep: 1316 Posts: 2,144
Location: Adriatic sea
Quote:
Originally Posted by tunnels View Post
Mercury will be an inline 4 and smooth running !!
Not necessarily true, but if the engine comes from the right era, yes.
The 4-inline Merc was probably the best outboard design ever, smooth running, economical and durable. It had a starter the size of a windshield wiper motor: it even started with an almost flat battery.
__________________
Stupidity must be a virtue, whole industries, governments, even economies depend on it......
Reply With Quote
  #10  
Old 02-28-2010, 11:56 AM
Easy Rider's Avatar
Easy Rider Easy Rider is offline
Senior Member
 
Join Date: Oct 2009
Rep: 668 Posts: 665
Location: Thorne Bay Alaska
I think Johnson may have had a problem w the 30hp in certain years that were white. We have 2 of them here and they have always run rough and noisy. Check the gear case and all the other OB stuff and if the Jonson runs smooth just buy the one you like but if the Johnson runs rough go w the Merc.
CDK,
Are you talking about the old two strokes? Around the Everett area in Wash state Weyerhouser ran Mark 55s on their log boom boats. They rebuilt them regularly but those engines took a savage beating and were remarkably trouble free. Don't remember them as "economical" though.
Tunnels,
I agree ... smooth running is very important.

Easy Rider
Reply With Quote
  #11  
Old 03-01-2010, 03:21 AM
CDK's Avatar
CDK CDK is offline
experimental engineer
 
Join Date: Aug 2007
Rep: 1316 Posts: 2,144
Location: Adriatic sea
Quote:
Originally Posted by Easy Rider View Post
CDK,
Are you talking about the old two strokes? Around the Everett area in Wash state Weyerhouser ran Mark 55s on their log boom boats. They rebuilt them regularly but those engines took a savage beating and were remarkably trouble free. Don't remember them as "economical" though.

Easy Rider
Yes, the 40 hp was the smallest 4 cylinder outboard ever. By current standards it was a thirsty engine of course, but at the time the competition like the Johnson Workhorse wasted even more fuel and oil.
__________________
Stupidity must be a virtue, whole industries, governments, even economies depend on it......
Reply With Quote
  #12  
Old 04-05-2010, 06:07 AM
sandhammaren05's Avatar
sandhammaren05 sandhammaren05 is offline
Junior Member
 
Join Date: May 2009
Rep: 62 Posts: 81
Location: Austria (Tirol) & Texas
Quote:
Originally Posted by Easy Rider View Post
I think Johnson may have had a problem w the 30hp in certain years that were white. We have 2 of them here and they have always run rough and noisy. Check the gear case and all the other OB stuff and if the Jonson runs smooth just buy the one you like but if the Johnson runs rough go w the Merc.
CDK,
Are you talking about the old two strokes? Around the Everett area in Wash state Weyerhouser ran Mark 55s on their log boom boats. They rebuilt them regularly but those engines took a savage beating and were remarkably trouble free. Don't remember them as "economical" though.
Tunnels,
I agree ... smooth running is very important.

Easy Rider
Probably not a model problem. The 2 cyl. 35 was made from 1976-1994, is reliable, high torque in mid-range, fast. The "30" made from 1986-1993 is the same as the 35.
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Boat building first steps: Plz help ipolic Boatbuilding 9 04-04-2009 02:19 PM
plz help!! i really need to know how naval architects use math! druidking Boatbuilding 4 11-02-2008 11:33 PM
advice 4 a novice plz surfdreams Open Discussion: All Things Boats & Boating 0 12-27-2006 07:01 PM
problem (plz help) thecaesar Boat Design 5 10-14-2004 09:15 PM
Propeller calculation information.. plz dj68 Software 5 09-03-2004 08:09 PM


All times are GMT -5. The time now is 07:30 AM.


Powered by: vBulletin Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2012 Boat Design Net