how to change oil in 85 outdrive???? newb needs help!

89sandman

Seaman
Joined
Jun 1, 2012
Messages
55
tried the search but it never seems to give you the info you need. read a couple of posts but they were for newer outdrives that have a resi bottle in the engine compartment, mine does not. can see what look like a drain screw at the bottom of the outdrive on the side and what appears to be a vent screw, at least thats what it says above the screw. would assume this is where you fill it but really don't know. do these just run 80/90w or do they need something different. if the vent screw is indeed where you fill it do you fill it until it comes out the hole? any help would be greatly appreciated!!!
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,092
Re: how to change oil in 85 outdrive???? newb needs help!

remove the upper vent screw and them remove the lower drain plug and drain unit
get 2 qts of hi perf gear oil and pump
pump from the bottom hole untill it comes out the top hole
install upper plug first, then lower plug
 
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