Amount of out drive oil

I am working the winterization process a little at a time. I wanted to get the critical stuff done, namely, getting water out of the cooling system. Now, moving to the fluids.

How much fluid is in the lower unit. I'd like to drain and refill, but I don't know how much to get. I'd rather not have to run to the store in the middle of the process. Any clue how much I'll need?

BTW-1990 4.3l OMC Cobra

Re: Amount of out drive oil

What type of motor/outdrive setup do you have? Would help

Re: Amount of out drive oil

Cobra drives take 50 plus ounces.Do you know where to drain and fill? You have a fill plug on the rhs. It MUST!!!!!!!!! be filled from there.Jerry

Re: Amount of out drive oil

That particular drive holds 64 ounces of gear lube.
This is right out of the OMC manual.
Slowly fill from the bottom until you see it at the center hole,put the bottom plug in and fill it from the center hole until it shows full on the dip stick.
dip stick just resting in the hole not screwed in.
When full,tighten the dip stick then quickly put the center drain plug in.
Run in gear then let set a few hours then double check it on the dip stick.
Fill slow...Cobras are known to be tricky and get air in.It will hold all 64 ounces.
I done mine many times and both bottles just fit to get it to the full mark.
Be sure to use new nylon washers on the drain and dip stick plugs.

I lost the washer on my dip stick once so went to the auto parts store and bought a black plastic washer for an oil pan drain plug.
It fit fine but leaked.
Good thing i checked the gear lube often for water...
Gotta use the OEM washers...

Re: Amount of out drive oil

hope you can read this, it's from the OE manual.