1977 Mercury 850 85HP

jslooter

Recruit
Joined
Jul 17, 2002
Messages
1
I have an 85 HP Merc that was given to me before it made someones trash. It a 4 cyl and it still runs although it needs some work. As I'm not yet to familiar with outboards, I was wondering if someone could tell me what the tube (rubber hose line) that is between the 2nd and 3rd spark plug and what is its purpose. This line on my engine looks totally blocked.<br /><br />Thanks for any help :cool:
 

shadow123

Recruit
Joined
Jul 17, 2012
Messages
1
Re: 1977 Mercury 850 85HP

I have an 85 HP Merc that was given to me before it made someones trash. It a 4 cyl and it still runs although it needs some work. As I'm not yet to familiar with outboards, I was wondering if someone could tell me what the tube (rubber hose line) that is between the 2nd and 3rd spark plug and what is its purpose. This line on my engine looks totally blocked.<br /><br />Thanks for any help :cool:

I do believe (93%) it is a cooling drain line.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,036
Re: 1977 Mercury 850 85HP

93%?? Sounds like the telltale. The telltale squirts water out of the rear of the cowling, whenever the motor is running. It is an indicator that the motor is pumping water.
 
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