Antique OMC Gearcase Lube?

[Aidan Smith]

Hello! I am currently restoring a couple motors, an Elto Lightweight, Foldlight, and Evinrude Ranger (4407). Would anyone have any recommendations for the lower units? I was thinking of finding some JD Corn Head grease, or 105 grease for the lowers. I have seen many opinions, ranging from SAE 90 gear oil down to general purpose grease. If anyone has any more professional opinions, any help would be greatly appreciated, thanks!

1952 Blue Streak "B-Stock Runabout" - 1952 Mercury KG7Q
1955 Feather Craft Vagabond - 1956 Mercury Mark 55E

[Tubs]

Video Link. https://youtu.be/dAu2-zYmgGc?si=KAIWZsetRRXL8tWW

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[NATHAN KILLIAN]

Use grease on those motors rather than oil.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

[NATHAN KILLIAN]

This conversation about a TD-20 LU has some good information that would somewhat pertain to those motors.  I decided to use Corn Head Grease on my motors.

 

https://www.aomci.org/forums/topic/td-20-lower-unit-lube/

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

[Mallett]

I’ve been using cornhead grease, seems to do the job.

[Author]

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