collasped fuel line.

[82rude]

Why would the line coming from the tank to the fuel pump be collapsed on a merc 470?Had the carb rebuilt last week and my brother ran it up to camp and ran great for about 2 hours and now all it will do is idle .As soon as you give her gas she goes about 100 feet and dies.Pump shows 5 psi according to mechanic .Plugged pick up?

 

[Bt Doctur]

have never seen the double wall fuel line collapse.More like a clogged anti-syphon

 

[82rude]

Would this cause the problem im describing?

 

[Bt Doctur]

it prevents you from drawing fuel from the tankl

 

[82rude]

Thanks I will pass the info on to my brother.Just blow it out.?Is there a filter to replace or?

 

[82rude]

Brother says main line was collapsed .Also where would anti siphon line be?

 

[Bt Doctur]

it is a spring loaded check ball , the very first fitting at the tank

 

[82rude]

Thankyou very much,sounds right.I also checked other sources and the anti-siphon seems to give the exact symptoms so will check asap.

 

[82rude]

Do you replace or fix at the tank on top or inside?

 

[Bondo]

Ayuh,..... It's the hose barb at the tank,....