float bowl float, which way is up?

[skiffer]

I was cleaning out the float bowl in my 2003 25hp when the float fell out of the float bowl (klutz!) onto the floor. Luckily no damage. The problem is, I have no idea which way the float goes back in since it is not symmetric from top to bottom. One surface is flush across, the other has an indentation. My service manual does not show this detail. Does anyone have any idea which surface of the float is up? Thank you in advance.

 

[Xcusme]

Re: float bowl float, which way is up?

Does your float have a ridge on one of the flat sides??

 

[Laddies]

Re: float bowl float, which way is up?

flat side up

 

[Xcusme]

Re: float bowl float, which way is up?

Ha ! Ya beat me to it!

 

[skiffer]

Re: float bowl float, which way is up?

There is a ridge on one surface, like it was put in a lathe and a 1/8 x 1/8 annular ring milled out of the edge. Other than that, both surfaces are flat across.

 

[rlindsay]

Re: float bowl float, which way is up?

Hi Skiffer, Hope you solved the problem. Something that I found helpful was this parts source that has good diagrams that you can zoom in. They are just drawings that may not show the detail you need but whichever side goes up may not be that important. I was warned to avoid removing the carb from my 93' 25. Good luck.<br /> http://www.mercurypartsexpress.com

 

[skiffer]

Re: float bowl float, which way is up?

Hello Rlindsay-<br /><br />Thanks for the link. I checked it but unfortunately it doesn't show that detail. My $50 Merc service manual doesn't either. <br /><br />The float has a shoulder on one end. It should make some difference which way it goes in because the floatation will be slightly different depending whether the shoulder end is up or down.<br /><br />So I broke down and went to my dealer and he says the shoulder end goes up. I put it in that way and it seems to work ok although I have only tested it with ears, not on the boat.<br /><br />I was wondering, why were you advised not to take the carb off?

 

[rlindsay]

Re: float bowl float, which way is up?

Skiffer, If its running good at home, I'd say you've fixed it. I was trying to fix a choke problem and removing the carb should be a last resort because of what you ran into for one thing plus the necessary gaskets. Fortunately with the help I got from this forum everything got fixed. However, I still do not understand exactly how my choke solenoid works. Something is injecting fuel but I don't see how unless its just some kind of electromagnet. All I know is that it clicks like its supposed to.

 

[skiffer]

Re: float bowl float, which way is up?

rlindsay: While removing the carb on my motor (25hp electric start with tiller) what I found was the carb has what appears to be a small pump attached to the side with a blue plastic plunger sticking out of it. Pushing on the plunger squirts a stream of fuel into the engine. My motor has a manual priming knob on the front which I pull out to prime. It interacts with a plastic arm that pushed down on the blue plunger. I assume remotely operated engines use a solenoid to do the same thing. <br /><br />Turns out I didn't have to take the carb of anyway. I did it because I thought I had water in the float bowl, but there wasn't any int here after all that trouble. If you ever have to take the carb out I

 

[skiffer]

Re: float bowl float, which way is up?

rlindsay: <br /><br />While removing the carb on my motor (25hp electric start with tiller) what I found was the carb has what appears to be a small pump attached to the side with a blue plastic plunger sticking out of it. Pushing down on the plunger squirts a stream of priming fuel into the engine. My motor has a manual priming knob on the front which I pull out to prime. It interacts with a plastic arm that pushed down on the blue plunger. I assume remotely operated engines use a solenoid to do the same thing.