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TOPIC: 1947 Mercury KD4

1947 Mercury KD4 26 Jan 2018 14:21 #81718

Work continues......lot's of help from FiberGlassics - Mercury outboard discussion group.
Since gas tank had a small leak - judging from accumulation of dirt in one area - the tank was taken apart for cleaning and installing new gaskets to seal the leak.....today project is to clean the tanks inside surfaces, cut the gaskets and assemble it back.



Petcock once removed - was cleaned with carburetor cleaner and is operational - discovered that has threaded hole to install original fuel filter - Got the filter form Joe at Ferguson-Poole Marine - need to clean the thread with 2-56 tap



Taking the water pump apart trying to get to the impeller - currently soaking impeller brass cover - stuck in the housing.



Over all the project is moving forward with a "little help from my friends" :)

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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp

1947 Mercury KD4 05 Jan 2018 17:55 #81207

Hi Jabe,

Well, the petcock is still clogged - but just found out from Joe at fergusonpoolemarine that there is a filter element on it ( I was thinking of on installing some fuel filter in gas line - but knowing this I am not going to). So the simplest way would be remove the petcock and clean it with carburetor cleaner or something of that nature (paint remover).............but by doing that I will be opening a (small) can of warms - new gasket, maybe new filter , meaning $$ and time
Good thing is that they can be obtained :biggrin:
Anyway, work is getting in the way of all projects big and small.


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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp

1947 Mercury KD4 05 Jan 2018 11:48 #81202

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2dogsnight wrote: spark have not arrived just yet :biggrin:
.......there is apparently some cleaning of electrical components needed (point's)
Tank is soaking in acetone and varnish clogged petcock is starting to letting a drip of varnish trough from time to time....so there is hope


just a thought, i redid my tank on my '47 Neptune, i used paint stripper with a handfull of 1/4" flat washers and gently rotating the washers inside.........then flushed with water....
just somethin i tried and worked well, it occured to me from the old days of furniture restoreing, stripping old varnish off........ :hmm:

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1947 Mercury KD4 05 Jan 2018 08:38 #81201

spark have not arrived just yet :biggrin:
.......there is apparently some cleaning of electrical components needed (point's)
Tank is soaking in acetone and varnish clogged petcock is starting to letting a drip of varnish trough from time to time....so there is hope

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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp
Last edit: by 2dogsnight.

1947 Mercury KD4 04 Jan 2018 02:06 #81166

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That’s a good start. Does it have spark?

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Wayne
Hamilton, ON

1955 Vagabond I w/ 1955 Mercury MK55 50 hp
1957 Ranger III w/ 1957 Evinrude Big Twin 35 hp (sold)

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1947 Mercury KD4 03 Jan 2018 16:58 #81152

did cylinder pressure test: 125 and 117 lbs. One of the Mercury buffs in my area agreed to get it started for me - after prior check of major components ......I am VERY happy about that!
Did some cleaning and took the gas tank off - unfortunately didn't think trough the consequent ions of using carburetor cleaner for that task and end up stripping a lot of paint.....there was not much of it , but still.
Today cleaning gas tank......later on - carburetor.

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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp

1947 Mercury KD4 22 Dec 2017 17:36 #80673

Well, after some chewing I am trying two way approach.....see which one I will have to go with
Having two guys in the area that are very knowledgeable about Mercury outboards I am trying to see what it would take to have one of them to look over the motor and replace stuff that matter the most.
Secondly I am printing the parts list and will take a hard look to see if I can replace crankshaft oil seals, impeller and inspect the coils........without ruining the motor

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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp
Last edit: by 2dogsnight.

1947 Mercury KD4 21 Dec 2017 23:21 #80664

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That’s all good advice, Joe. And Merry Christmas to you. I should have added you to the list of Mercury parts suppliers, too. Sorry about that.

Wojo, it may seem daunting, but the KD4 is a pretty simple machine. Just take lots of photos as you dismantle the motor. I like to put bolts back in holes and nuts on studs whenever I dismantle a motor (when practical) so I don’t lose them or forget where they go.
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Wayne
Hamilton, ON

1955 Vagabond I w/ 1955 Mercury MK55 50 hp
1957 Ranger III w/ 1957 Evinrude Big Twin 35 hp (sold)

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1947 Mercury KD4 21 Dec 2017 18:05 #80659

Don't think I can tackle all this - no experience and all.......but I do agree with you !
Will be chewing on this!

Merry Christmas !!

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1960 Skippy 12C - 1979 Seagull Forty Plus
1947 Mercury KD4 Rocket
1955 Fontana 18' - 1958 Atomic 4
1985 Glen L15 - 1980 Johnson 7.5 hp
2016 Mill Creek 13
1964 Evinrude 18 hp

1947 Mercury KD4 21 Dec 2017 13:10 #80648

Hello All,

Personally, I feel that I best learn when I know all the possibilities, or in other words, devil's advocate. Myself, if I had a 70 year old outboard, I would be concerned with the lower crankshaft oil seal and water pump impeller, or oscillator, especially so. Many know or can read elsewhere about long idle rubber water pump impellers, so I will "stick to" the crankshaft oil seal here. Especially so on a two-cycle outboard motor, the crankshaft oil seals not only keep oil in, but water from being sucked-in. So, if water is ingested, it then "washes away" the lubrication, and allows the crankshaft, and possibly the connecting rod also, to rust. As Mercurys have ball, needle, or roller bearings instead of babbitt or bushing bearings (as most all modern outboards have), bearing failure, along with ruined crankshaft surfaces, and possibly connecting rod bearing surfaces as well, will then occur. Maybe this will be poor advice in your outboard's particular case, and somehow the 70 year old oil seal lip material will not only still be in good shape, but also last for many more years with reintroduction to operation. Lower unit (or gear housing/gearcase) damage can also occur with reintroduction to service without replacing oil seals or gaskets (o-rings), but again this is often discussed.
I will also take the opportunity here to wish everyone who should read this A Merry Christmas and Happy Holidays!!!


The Pooles
Ferguson-Poole, Inc. (Marine Sales & Service since 1951)(Mercury dealership for 50 years)
www.fergusonpoolemarine.com
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Avatar: Carl Kiekhaefer (Founder of Mercury Outboards) and My Father at 1964 Mercury Dealer Meeting
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