Topping up fluid in a Plastimo 135 compass

[CaptNemoO2]

Originally Posted by Seafarer48

I was able to refill my Plastimo 135 Compass to eliminate the bubble. Most of the posts are helpful, but I removed some plastic from around the fill port and slipped a 6" piece of 3/8" ID plastic tubing over the port, after removing the filling plug. I slowly added Ritchie Compass Fluid until it was 4" up on the tube, with the compass tilted such that the fill port was at the high point. Next, I massaged the rubber diaphragm, which dislodged the trapped air, several times. Finally, I dropped the filling plug down the tube and tightened it in place with a long thin flat blade screwdriver. This method put some pressure on the compass fluid.
When I turned the thing right side up, there was only a tiny bubble left. I repeated the process, and eliminated the bubble.
Lets see how it holds up!

By any chance, do you have any pictures? I took my Olympic 135 apart as best as I could in the boat in the winter as I didn't want the plastic to break in the cold. I didn't see any fill port, and figured it was sealed over.

[Seafarer48]

I will take a few and post them in a day or two.

[Ahab2]

Sorry for refloating this thread but I am in the same situation.

How can I remove that cover to reach the screw where I will be able to fill the compass?

[Ahab2]

I answer myself for the benefit of others.

You have to insert a flat-blade screwdriver through the small slots and press towards the center of the compass

[Rytal Sin]

Originally Posted by Seafarer48

I was able to refill my Plastimo 135 Compass to eliminate the bubble. Most of the posts are helpful, but I removed some plastic from around the fill port and slipped a 6" piece of 3/8" ID plastic tubing over the port, after removing the filling plug. I slowly added Ritchie Compass Fluid until it was 4" up on the tube, with the compass tilted such that the fill port was at the high point. Next, I massaged the rubber diaphragm, which dislodged the trapped air, several times. Finally, I dropped the filling plug down the tube and tightened it in place with a long thin flat blade screwdriver. This method put some pressure on the compass fluid.
When I turned the thing right side up, there was only a tiny bubble left. I repeated the process, and eliminated the bubble.
Lets see how it holds up!

I did not see any hole on bottom of compass. Or did I miss something?

[Ahab2]

Is the screw pointed by the screw driver.
You still need to remove that plastic grey ring

[Rytal Sin]

Originally Posted by Ahab2

Is the screw pointed by the screw driver.
You still need to remove that plastic grey ring

Can the gray cover be opened? I've unscrewed the screws but can't remove the gray part. It seems to be glued on. Is the injection hole located below the cover? Is it easy to see and inject liquid into?

[Ahab2]

Rytal Sin, the answer to your question is a couple of posts above.

[Rytal Sin]

Originally Posted by Ahab2

Rytal Sin, the answer to your question is a couple of posts above.

Alright, thank you.

[coopec43]

Not contradicting Herman in any way but these links may help too?

https://www.google.com.au/search?q=R...client=gws-wiz