tilt and trim reservoir cap

ab1

Petty Officer 2nd Class
Joined
Mar 2, 2010
Messages
111
93 Johnson 150....

The cap on the trim reservoir is plastic with a slot, seems to be a pretty soft plastic. The slot has worn down from previous owner which makes it a bit fragile when trying to check/add fluid. I've been just using rubber gloves to get it as tight as possible by hand and then turning it slightly with a driver. Questions:

1. How tight should this be..hand tight or more? I'm concerned because it stays below the water line.

2. Is the cap supposed to have an o ring? Again, just want to make sure it is sealed and doesn't get water intrusion in the hydraulics.

Thanks!
 

jonesg

Admiral
Joined
Feb 22, 2008
Messages
7,198
Re: tilt and trim reservoir cap

Mine has a steel screw in the center of the cap, 1994 150hp.
I wonder if you the wrong cap.

Look up the exploded view ( I know, they don't explode but...:p)
evinrude.com
 
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