Re: oil ratio

[frankr]

quote bjensen64:

Hello everyone, I haven’t been around much but having recently celebrated my daughters wedding I can now pay more attention to other things!

I’m trying to document different details for the motors I have and I’m trying to find out the original oil mixtures for the ones I have listed below:

1930 Johnson K-50 8
1935 Champion Model A 15—–1/2 pint SAE 30
1936 Johnson K-80 9.3—–1 pint SAE 40
1938 Champion D2D 4.4—–3/4 pint SAE 30
1946 Champion Blue Ribbon 1J 4.2—–3/4 pint SAE 30
1947 Martin 60 7.2—–3/4 pint SAE 40
1947 Evinrude Sport Twin 4416 2
1953 Johnson TN-25 5
1953 Firestone 7.5—–1/2 pint SAE 30
1955 Evinrude Aquasonic? 25
1956 Mercury Mark 25E 20
1957 Johnson JW-13 3
1957 Mercury Mark 30 Turbo 4 30
1983 Evinrude 15

Now, what to run these at may be a separate discussion. I’ve read the oil ratio notes under the FAQ section and it seems I should just run a modern oil at the original mixture and let ’em smoke.

Any and all info is greatly appreciated.

Charts were recently posted for the OMC, which re-started started the usual oil war. And I’ll leave the Mercs to the dark side gurus