Welcome, Guest
Username: Password: Remember me

TOPIC: 1947 Mercury KD4

1947 Mercury KD4 20 Feb 2018 17:33 #82279

maybe flushing with a soapy water...?

Latest......trying to get out the propeller shaft seal - chipped out the rubber, thinking that's all is there, but not.....there was a metal ring on the outside....now what?



petcock fuel filter was installed !

This message has attachments images.
Please log in or register to see it.

Please Log in or Create an account to join the conversation.

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 17 Feb 2018 08:31 #82187

wbeaton wrote: Mercury’s do not like salt water. Make sure to thoroughly flush the saltwater out after every use. You won’t find a stainless driveshaft in there so take care it.[/quote

Wayne, flushing out the salt water from the motor - I have been thinking about that , wandering if there is a solution to mix with water - have Atomic 4 that will be getting sea trials this summer as well, so I am very interested in finding some product that can be use to flush the salt out of the motors.......I am finding out that ocean water is really nasty stuff

Please Log in or Create an account to join the conversation.

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 17 Feb 2018 07:08 #82186

  • wbeaton
  • wbeaton's Avatar
  • Offline
  • Powder Monkey
  • Powder Monkey
  • Posts: 1621
  • Karma: 3
  • Thank you received: 183
Mercury’s do not like salt water. Make sure to thoroughly flush the saltwater out after every use. You won’t find a stainless driveshaft in there so take care it.

Please Log in or Create an account to join the conversation.

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/

This image is hidden for guests.
Please log in or register to see it.

1947 Mercury KD4 16 Feb 2018 20:58 #82148

2dogsnight wrote: plan to run the motor in Puget Sound waters - water here is pretty cool - we shall see how warm the motor components will get this summer ( hopefully ) :)


The Sound is pretty stable, 45 to 55 degrees is about the outside ranges, I wouldn't think it is ever cold enough to be an issue and I would think it would keep a gear box nice and cool B)

Please Log in or Create an account to join the conversation.

Ray

"Every man takes the limits of his own field of vision for the limits of the world."
Arthur Schopenhauer

1956 Vagabond I - 50 HP Johnson
1950 Flyer - 50 HP Evinrude
1/2-195something Flash - KG7
1956 Golden Rocket, Sawzall Special

1947 Mercury KD4 16 Feb 2018 19:23 #82146

plan to run the motor in Puget Sound waters - water here is pretty cool - we shall see how warm the motor components will get this summer ( hopefully ) :)

Please Log in or Create an account to join the conversation.

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 16 Feb 2018 15:55 #82143

The thing to keep in mind is that grease is just oil with thickeners added to keep it in place, mostly soaps, but now a lot have lithium added as well. The main concern with using grease instead of oil is temperature extreams, if you are planning of cold winter running it can be a problem or if you run long and hard enough heat buildup damages grease more than it does oil, which can circulate and help control heat buildup.

Please Log in or Create an account to join the conversation.

Ray

"Every man takes the limits of his own field of vision for the limits of the world."
Arthur Schopenhauer

1956 Vagabond I - 50 HP Johnson
1950 Flyer - 50 HP Evinrude
1/2-195something Flash - KG7
1956 Golden Rocket, Sawzall Special

1947 Mercury KD4 12 Feb 2018 12:16 #82078

  • wbeaton
  • wbeaton's Avatar
  • Offline
  • Powder Monkey
  • Powder Monkey
  • Posts: 1621
  • Karma: 3
  • Thank you received: 183
I agree with the others about replacing the seals and using oil instead of grease. However, after 70 years the bushings and prop shaft may be a little too tired to allow the use of oil even with new seals. When this motor was first produced Mercury recommended the use of grease. Lubriplate 105 or JD cornhead grease will both work fine. Some guys use a combination of both oil and grease.

Please Log in or Create an account to join the conversation.

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/

This image is hidden for guests.
Please log in or register to see it.

1947 Mercury KD4 12 Feb 2018 01:08 #82074

  • Boatboy
  • Boatboy's Avatar
  • Offline
  • Ship's Doctor
  • Ship's Doctor
  • Posts: 2982
  • Karma: 31
  • Thank you received: 403
The old seals and gaskets left much to be desired.

Please Log in or Create an account to join the conversation.

John

1958 Vagabond II & 35 HP Evinrude
1955 PlastiCraft 12 Ft. Delux Runabout
1957 Clipper & twin 35 HP Evinrudes
1957 AlumaCraft 14 Ft. FD

1947 Mercury KD4 12 Feb 2018 00:11 #82073

  • RickG
  • RickG's Avatar
  • Offline
  • Boatswain's Mate
  • Boatswain's Mate
  • Posts: 1338
  • Karma: 4
  • Thank you received: 247

jabe wrote: I have heard that it works well, i lean towards fixing the seals to run with proper lube, but i been told for the ones that just wont seal, that grease is the way too go.....i think i would leave some air space for expansion, as minimal as it would be.......


I'm with Jabe here. The Corn Head Grease thing is really about keeping the lubricant in when the seals may be, or become, compromised. We need to care about keeping water out too. If you're actually replacing seals and gaskets then it should work just fine.

Please Log in or Create an account to join the conversation.

'54 Vagabond / '55 Mark 55E
'59 Crestliner Jetstreak / '60 Merc 300

Kiss my a$$, I bought a boat; I'm going out to sea... - Lyle Lovett

1947 Mercury KD4 11 Feb 2018 22:51 #82072

  • Boatboy
  • Boatboy's Avatar
  • Offline
  • Ship's Doctor
  • Ship's Doctor
  • Posts: 2982
  • Karma: 31
  • Thank you received: 403
I have always been told to use grease in lower units that have no gear shifting ability, and gear oil in lower units that have gear shifting.
The following user(s) said Thank You: jabe

Please Log in or Create an account to join the conversation.

John

1958 Vagabond II & 35 HP Evinrude
1955 PlastiCraft 12 Ft. Delux Runabout
1957 Clipper & twin 35 HP Evinrudes
1957 AlumaCraft 14 Ft. FD
Time to create page: 0.248 seconds

Forum Statistics

  • Total Users:1660
  • Latest Member:budrow84
  • Total Posts:75.2k
  • Total Topics:5931
  • Total Sections:9
  • Total Categories:22
  • Today Open:1
  • Yesterday Open:0
  • Today Answer:15
  • Yesterday Answer:28

Top Posters

Top Posters Posts
Eagle127 4404
sgower 3874
jabe 3843
VinTin 3822
Boatboy 2982
Carol 2870
Locomotion 2867
BigBadJon 2658
unclbuz 2537
jbcurt00 2387

Site Login

Facebook / Youtube

 

Feather Crafts online

 

icon icon Boats-A-Poppin