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Old 23 October 2012, 15:48   #1
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Country: UK - Scotland
Town: Newcastleton
Boat name: GLENNA
Make: Avon searider
Length: 4m +
Engine: Mariner 25hp
Join Date: Nov 2011
Posts: 72
Mariner 25hp

Am trying to find out the age of the Mariner 25 that was with my SR 4M when I got it. I have been told several times that the last two numbers in the serial number give the year of manufacture ? The serial number on the plate is 648 L 380525 the only other number is below the Mariner name and is :-W25ML. Can anyone give me some idea of the year this motor was made (there are some pics on my page)
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Old 23 October 2012, 16:16   #2
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Country: UK - Scotland
Town: Argyll
Boat name: Helena
Make: Birchwood
Length: 5m +
Engine: Inboard Diesel 250hp
Join Date: Jun 2011
Posts: 116
At a brief guess I'd say very early 80's. it's a sandshin engine built by Yamaha and its pre thru prop exhaust.
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Old 23 October 2012, 16:20   #3
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Country: UK - England
Town: I.O.W
Boat name: Danger Donut
Make: 6.0 rib
Length: 6m +
Engine: Mariner F60efi
Join Date: Nov 2003
Posts: 185
yr of engine

Quote:
Originally Posted by 51ROB20 View Post
Am trying to find out the age of the Mariner 25 that was with my SR 4M when I got it. I have been told several times that the last two numbers in the serial number give the year of manufacture ? The serial number on the plate is 648 L 380525 the only other number is below the Mariner name and is :-W25ML. Can anyone give me some idea of the year this motor was made (there are some pics on my page)
Your engine is Yamaha based, on the ser plate in the bottom right corner is a single letter w,x,y etc . Each letter is a year which you can look up google or previous ribnet posts.
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Old 24 October 2012, 16:55   #4
Member
 
Country: UK - Scotland
Town: Newcastleton
Boat name: GLENNA
Make: Avon searider
Length: 4m +
Engine: Mariner 25hp
Join Date: Nov 2011
Posts: 72
Many thanks, I got round to running the engine up today for the first time, its been stuck in the back of my workshop since I got the boat home a year ago. It started on the third pull and after the initial bit of smoke (due to heavy oil mix) it ran as sweet as a nut. The people that I got the rib from said that the motor had not been used since its last service and it certainly looks and runs well. All I need to do now is get the few jobs done on the hull that need doing and then I can get her in the water (probably on the Solway Firth) and see what she handles like. i might even get some cod fishing in before the winter sets in.
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