Fuel Problem?
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 24
Likes: 0
Fuel Problem?
OK, got a 71 with a 76 engine (350), for a few weeks I notice if I cornered and accelerated hard, immediately afterwards she would hesitate a lot. then be ok. Bought new fuel filter but never actually put it on! Last week round long curve and she sputtered a while and then left me stranded. Put the new filter on but no gas was getting to the carb so I assumed Mech pump was bad. Replaced pump - started right up - yeah! BUT NOW when I go around a simple corner she tries to die, when I pull into the drive with a small slope she dies, when she sets for more than 5 minutes the clear fuel filter goes empty (back into the tank) Filter is a simple inline between pump and carb. Tightened all hoses, blew air back into tank, what now?
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 24
Likes: 0
well replaced all fuel hoses, put compressed air thru them again and it was plugged, persistence got it unplugged and I could here the tank gurgle. Took it out and it ran, until hard accel, then she died when I let off. Thinking something in the tank, read somewhere of a baffle (?) in it that can come loose?
point of interest - put a clear filter on and even though it is running I see no fuel in the filter - must be good for gas mileage
but whats up with this?
point of interest - put a clear filter on and even though it is running I see no fuel in the filter - must be good for gas mileage
but whats up with this?
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
well replaced all fuel hoses, put compressed air thru them again and it was plugged, persistence got it unplugged and I could here the tank gurgle. Took it out and it ran, until hard accel, then she died when I let off. Thinking something in the tank, read somewhere of a baffle (?) in it that can come loose?
point of interest - put a clear filter on and even though it is running I see no fuel in the filter - must be good for gas mileage but whats up with this?
point of interest - put a clear filter on and even though it is running I see no fuel in the filter - must be good for gas mileage
but whats up with this?Corvette Stories
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Racer
Joined: Jul 2004
Posts: 441
Likes: 1
From: Windsor Ontario
When I started having those issues I decided to spend $300 and bought a fuel tank kit for $309. Came complete with tank, sending unit, straps and the short hoses and mounting hardware. Never had another issue.
Drifting
Joined: Jan 2011
Posts: 1,853
Likes: 81
From: Hamilton Virginia
Had the same issues with mine. did some reading and decided to drop the gas tank. I emptied the tank and change the whole sock and float assembly. I put everything back together and all is well 
Team Owner
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
Drifting
Joined: May 2012
Posts: 1,353
Likes: 44
From: Calgary Alberta
Don't have to replace the tank unless it is in rough shape...to take care of the sock you can just pull the sending unit (for 71 yours comes out the bottom of the tank) and replace components of it...like the sock, or you can just toss in a new sending unit.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Etc.
I post CC links because I use them the most for shipments to Canada, but there are many reputable outfits that would work for you in the US.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Etc.
I post CC links because I use them the most for shipments to Canada, but there are many reputable outfits that would work for you in the US.
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 24
Likes: 0
Don't have to replace the tank unless it is in rough shape...to take care of the sock you can just pull the sending unit (for 71 yours comes out the bottom of the tank) and replace components of it...like the sock, or you can just toss in a new sending unit.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Etc.
I post CC links because I use them the most for shipments to Canada, but there are many reputable outfits that would work for you in the US.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
http://www.parts123.com/parts123/yb....Z5Z5Z50000050G
Etc.
I post CC links because I use them the most for shipments to Canada, but there are many reputable outfits that would work for you in the US.
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 24
Likes: 0
Eliminated strainer in tank, ran without gas cap to be sure it was getting vent. Still after long acceleration it will run a few blocks normal speed then it will simply act like there is no gas and shut off. I am clueless! Guess its time to call the mechanic 
Drifting
Joined: Aug 2010
Posts: 1,839
Likes: 45
From: nassau co. new york
i don't know what carb you have but if it is an edelbrock it may have additional fuel inlet screens before the needle valves.when i rebuilt mine it said to use either those or the main inlet filter at the fuel inlet to the carb.but not to use both.they may be remaining in the carb so just a thought.
Thread Starter
Heel & Toe
Joined: Sep 2012
Posts: 24
Likes: 0
i don't know what carb you have but if it is an edelbrock it may have additional fuel inlet screens before the needle valves.when i rebuilt mine it said to use either those or the main inlet filter at the fuel inlet to the carb.but not to use both.they may be remaining in the carb so just a thought.