Firefly625
Well-Known Member
I have used Duncan Walker many times, very good chap and will work on older Mercs happily....
Mariner four cylinder 50hp 2 stroke
- Thread starter Mavric
- Start date
I have used Duncan Walker many times, very good chap and will work on older Mercs happily....
Firefly625
Well-Known Member
Thanks lads lots of old sea dogs with plenty of knowledge on here
indeed... and a lot of us like to reminisce.............
here is my Mercury 50hp, short shaft... a rare thing in immaculate condition....should have bloody kept it!
and it was replaced with a very run down Winner Cobra with an equally squalid 80hp Mercury.... 6 months restoration over a winter and the boat and engine (with replacement gearbox) looked a bit more presentable..
as for key availability, indeed on ebay there is a complete barrel and key available, but as jfm stated there will be a key number on the barrel, and they are as simple as 1D, 2F etc etc and they are also readily available off ebay for a few quid.
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jfm
Well-Known Member
Oooh, as we're reminiscing, here is my old ToP. Bought by my father brand new 1981 when I was a kid, and in our family for about 20 years. I now regret selling it too (for peanuts). I should have kept it and had it crated off to USA for full rebuild. Then, er, kept it in my study 
Firefly625
Well-Known Member
Oooh, as we're reminiscing, here is my old ToP. Bought by my father brand new 1981 when I was a kid, and in our family for about 20 years. I now regret selling it too (for peanuts). I should have kept it and had it crated off to USA for full rebuild. Then, er, kept it in my study
I still regret not getting a ToP on something. Saw on feebay a few months back a very clean / time warp late 70's fletcher in brown with 115hp top. One family owned from new, kept at Cornish holiday home, sold for £1400..
...so I will get one at some stage!
MapisM
Well-Known Member
Well, talking of o/b reminiscences, this is surely the beast which springs to my mind.as we're reminiscing, here is my old ToP.
...
I should have kept it and had it crated off to USA for full rebuild. Then, er, kept it in my study
Never owned one unfortunately, but I had the privilege to try a 25' monster with two of them on the transom, and the word astonishing isn't anywhere near a proper description for it.
Would be perfect for your study too, possibly replacing the stereo equipment, which would in fact become redundant.
With a gasoline supply and a water hose, whenever the work bothers you too much, you could make it scream all the way up to 8k+ rpm for a while.
Granted to put any work issue in perspective!
Mavric
Well-Known Member
Think ive opened a good can of worms for a change lol
jfm
Well-Known Member
I can't see the picture MapiM - the site doesn't like hotlinkingWell, talking of o/b reminiscences, this is surely the beast which springs to my mind.
Never owned one unfortunately, but I had the privilege to try a 25' monster with two of them on the transom, and the word astonishing isn't anywhere near a proper description for it.
Would be perfect for your study too, possibly replacing the stereo equipment, which would in fact become redundant.
With a gasoline supply and a water hose, whenever the work bothers you too much, you could make it scream all the way up to 8k+ rpm for a while.
Granted to put any work issue in perspective!
I agree though. The noise of these things at 5000+rpm was just beautiful. The mechanicals were a near silent buzz - 7 main bearings on the crank and needle rollers on all journals, all 19 of them. And of course the pistons were tiny lightweight things - only ~250cc per pot. But the induction roar and nice exhaust note was wonderful
The porting was of course a secondary consideration to developing power, and the thing was designed long before California and other places thought of emission laws. Some days it felt/smelt like 10% of the gasoline got spat out unburnt! The study would therefore need some ventilation. But it would be worth it
MapisM
Well-Known Member
Doh! I didn't notice that because I made a quick search for a pic of that o/b, linked it in my post, and it worked.
But obviously I could only see it because I had just opened that website, and the pic was cached in my PC.
Oh, well, the Mercury ad with a pic of the engine and a few interesting comment on it can be seen just clicking here, for those interested:
http://www.speedmastermarine.iwarp.com/images/scan10027.jpg
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Mavric
Well-Known Member
Hi all i know i said i needed an ignition key as the guy who owned the engine lost it but on my speedboat i have a throttle control with an ignition key on it but its a yamaha one will it work with this engine or do i need to still buy a mariner ignition barrel and key ?????
Mavric
Well-Known Member
Can someone tell me cheers ?
?
Mavric
Well-Known Member
Firefly625
Well-Known Member
ignition leads probably wont have same connectors, you could start chopping around and it may work.... or it may not. or it may be the wrong size....
Mavric
Well-Known Member
What year is my outboard i cant find it the number i found is ALCOA28C 50hp four cylinder mariner photos in this post ?
colhel
Well-Known Member
Mine never had a key, hence my silence.
Mavric
Well-Known Member
can anyone help
ccscott49
Well-Known Member
MV augusta did also. the 750 superamerica.
Mavric
Well-Known Member
ok so no one knows the year of my outboard ?
Tremlett 15
Well-Known Member
the number you posted is not a serial No, so it can not be dated from that, the serial No is on a plate on the mounting bracket between the fixing points that sits onto the transom, is the plate is removed ???? then it could be stamped on the engine block.
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Tremlett 15
Well-Known Member
the number should be 7 numbers or a letter with 6 numbers
ie:
5869427
A912978
Bxxxxxx
Cxxxxxx
9549369
these are examples..... does the engine have a plate on the clamp/bracket facing into the outboard well ?
does it look as if it has been removed ?
ie:
5869427
A912978
Bxxxxxx
Cxxxxxx
9549369
these are examples..... does the engine have a plate on the clamp/bracket facing into the outboard well ?
does it look as if it has been removed ?
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Tremlett 15
Well-Known Member
the serial No should be on the plate as shown in this photo ( bottom left hand side, arrow in red pointing to plate )
