Carb to fuel pump hose purpose?

model14

Petty Officer 2nd Class
Joined
Jun 26, 2013
Messages
118
What is the purpose of the hose running from the MercCarb to the fuel pump?
 

Bt Doctur

Supreme Mariner
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Aug 29, 2004
Messages
19,346
Re: Carb to fuel pump hose purpose?

the hose you referr to is called a "tell-tale" it runs from the fuel pump TO the carb to indicate a ruptured fuel pump diaphram. If this was a car pump and it was leaking fuel you would be most likely dead by now.
 

Bondo

Moderator
Staff member
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Apr 17, 2002
Messages
71,097
Re: Carb to fuel pump hose purpose?

Ayuh,.... If yer talkin' 'bout the yellowish tygon see-through line,..??

It's to route the spilled gas from a ruptured fuel pump diaphragm, into the carb to cause floodin', to tell ya the fuel pump needs to be replaced,....

Doin' so, it keeps the spilt gas Outa the bilge,... Less chance of a Big Boom,...
 

model14

Petty Officer 2nd Class
Joined
Jun 26, 2013
Messages
118
Re: Carb to fuel pump hose purpose?

Gotcha, thanks for the info.
Richard
 
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