1980's Mercury 50HP 4 CYL. Brass Baffle piece, no one knows what it is. Do you?

jimmbo

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
12,961
Re: 1980's Mercury 50HP 4 CYL. Brass Baffle piece, no one knows what it is. Do you?

Looking at the diagram, it appears to be located under the float. Perhaps to limit the float from dropping too far
 
Texasmark

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,558
Re: 1980's Mercury 50HP 4 CYL. Brass Baffle piece, no one knows what it is. Do you?

I can't open the web site. The float mechanism is a float, brass bracket, and a needle valve. Some brackets have a tab bent over and as jimmbo said, to limit float movement. Is this necessary, no as floats didn't used to have them; the tab, not the bracket. The bracket connects the float to the needle valve and when it is in the closed position, usually parallel with carb casting the needle valve shuts off fuel from the fuel pump. Can it run with it? The tab yes, the bracket no.

Mark
 
S

schematic

Lieutenant Junior Grade
Joined
Jan 12, 2008
Messages
1,102
Re: 1980's Mercury 50HP 4 CYL. Brass Baffle piece, no one knows what it is. Do you?

baffles are used to direct the stream of incoming fuel away from the float. This prevents flooding due to excessive weight being added to the float by a stream of fuel landing ontop.
 
Faztbullet

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,618
Re: 1980's Mercury 50HP 4 CYL. Brass Baffle piece, no one knows what it is. Do you?

What is the purpose of the brass baffle(s) pieces that go into the carb above the float
Click to expand...
These are slosh baffles,they keep fuel from splashing upward into the vent area when you hit wakes/rollers or hard turns. Without them when fuel is sloshed upward it floods the carb/engine causing a stumble and loss of power. It will run without them if you dont have em....
 
You must log in or register to reply here.
Top