What are these 6 lines for?

Jquest

Petty Officer 1st Class
Joined
Jan 16, 2004
Messages
278
They are 3 fuel lines on each side of the engines. They look like 1/4 inch lines that come from the block,where it mates to the head. They alternate and go into different corresponding nipples right across from where the carbs are. I tried looking through my manual , but they're not specific and the Bombardier site is temp. down. There are nipples on each side of the line and the lines are only about 8" long.<br />2001 150 V6 carb'd.
 

Walker

Captain
Joined
Jun 15, 2002
Messages
3,085
Re: What are these 6 lines for?

Sounds like the recirculation valve lines.
 

Jquest

Petty Officer 1st Class
Joined
Jan 16, 2004
Messages
278
Re: What are these 6 lines for?

Originally posted by Walker:<br /> Sounds like the recirculation valve lines.
ok...what do they do? Do they recirculate that excess gas? I'm asking cause I don't know. :) <br />And what happens if one of them is pinched or blocked? One of them looks like it might be a little pinched right at the nipple. It has to make a hard turn - 90degrees to go into it.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: What are these 6 lines for?

they take puddled fuel from the intake tract of one cyl and move it to another. if one is blocked or the valve is bad it can lead to idle instabilty issues and plug fouling at low speeds.
 

jhebert

Ensign
Joined
Jul 24, 2005
Messages
903
Re: What are these 6 lines for?

This may help explain it:<br /><br />
intakeManifoldPorts.jpg
<br /><br />The fuel flows from the above region into the cylinder intake port area:<br /><br />
fuelRecirculationPorts.jpg
 
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