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TOPIC: 1947 Mercury KD4

1947 Mercury KD4 21 Dec 2017 23:21 #80664

  • wbeaton
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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

1947 Mercury KD4 21 Dec 2017 10:45 #80646

Wayne....got the e-mail with manual - it's fantastic!
Was working till 2:30 am so I could only see it on my cell - I will print it out tomorrow .
Thank you very much !!


Wojo

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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 01:22 #80632

  • wbeaton
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Manual sent. American Outboard sells laquer decals. The decals are good, but they don't hold up as well as vinyl. Be careful applying them and use several light coats of clear coat on them once they are applied. Good luck.
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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)

Volunteer for the uppercanadachapteroftheaomci.yolasite.com/

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1947 Mercury KD4 20 Dec 2017 20:42 #80623

WOW,
America outboard has complete set of decals!!! First time I see what they looks like.....have some remnants of them on my motor.....

Thank you Wayne !!


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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 20 Dec 2017 03:11 #80613

  • wbeaton
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PM me your email address and I'll email you a copy of the parts catalogue. That powerhead is modular so if you start taking things apart you may break the seals at the gasket.

There are a few sources for decals. American Outboard is one. www.americanoutboard.com/

Vintage Outboard is good for gasket kits and parts.
www.vintageoutboard.com/

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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)

Volunteer for the uppercanadachapteroftheaomci.yolasite.com/

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1947 Mercury KD4 19 Dec 2017 22:18 #80598

Just got this motor and starting working on it.
It's a complete motor, cylinders are not frozen. it's been sitting for many years in Idaho.
Starting to clean and checking what needs to be replaced....so far other than a cork seal for gas cap, didn't find anything else.
Next step check for spark and compression.....and carburetor cleaning.
Looking for some manual, decals etc



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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
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