Reply
 
Thread Tools Search this Thread
 
Old 28 April 2014, 06:31   #1
Member
 
Country: UK - England
Length: no boat
Join Date: Oct 2012
Posts: 57
Mercury sea pro 15hp 2 stroke

Just bought a very nice 2008 example of this motor. But don't know that much about it . From what I can gather they are commercial grade uprated engines with more stainless parts and stronger gearing system and a carb with a different idle jet so they don't mind running on crap fuel or at idle for long periods. Can anyone tell me anything else about these engines?
Does anyone know if a engine cowling off an older mariner would fit ? Looks very similar. Cheers
__________________

__________________
monkey is offline   Reply With Quote
Old 28 April 2014, 07:28   #2
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
Marathon/Sea Pro - same weight I think but upgraded internally as you say, model the RNLI stick on the Y Class. Useful manuals here:

Index of /lib/mercury/manuals
__________________

__________________
Max... is offline   Reply With Quote
Old 28 April 2014, 07:55   #3
Member
 
Country: UK - England
Length: no boat
Join Date: Oct 2012
Posts: 57
That's very helpful Thanks. Looking forward to see how it compares with my tohatsu 9.8. Which I don't know if I can bear getting rid of ! Its such a nice thing.
__________________
monkey is offline   Reply With Quote
Old 28 April 2014, 08:08   #4
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
Doing exactly the same myself! The 15 is a real useful increase in take-off. The Mariner 15 is the lightest 15 out there too but the extra 8kg does make a difference in lumping it about.
__________________
Max... is offline   Reply With Quote
Old 28 April 2014, 09:25   #5
Member
 
Country: UK - England
Length: no boat
Join Date: Oct 2012
Posts: 57
Ok that's interesting , I wonder what the fuel economy difference is for a similar journey in a similar time ? I think I will keep both the 9.8 and 15 as they will certainly not lose money and could possibly gain some value. Then I can use the 9.8 when its just me and the 15 for trips with more people. Although in North wales the slip fees are about 20 a year for under 10hp and about 20 a launch for over so will have to see. Apparantely the mercurys all have a special curved section high up the leg to assist in comfortable shouldering of the motor !
__________________
monkey is offline   Reply With Quote
Old 28 April 2014, 09:45   #6
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
For a small 2 stroke generally work on 10% of HP = gallons per hour at WOT... so 1 gallon or 4.5 litres for the Twatsoo or 1.5 gallons or 6.75 for the Mariner.
__________________
Max... is offline   Reply With Quote
Old 28 April 2014, 11:10   #7
Member
 
henryfreston's Avatar
 
Country: UK - England
Town: Thornbury
Make: Avon Searider 4m
Length: 4m +
Engine: 50hp tohatsu tldi
Join Date: Sep 2012
Posts: 648
Quote:
Originally Posted by Max... View Post
For a small 2 stroke generally work on 10% of HP = gallons per hour at WOT... so 1 gallon or 4.5 litres for the Twatsoo or 1.5 gallons or 6.75 for the Mariner.
cruising at the same speeds you probably wont notice the difference between the 9.8 and the 15.
__________________

__________________
henryfreston is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 07:26.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.