Replacing deteriorating fuel pump hoses HELP!
Thread Starter
Intermediate
Joined: Jul 2007
Posts: 28
Likes: 0
Replacing deteriorating fuel pump hoses HELP!
I'm wondering if it is worth my time and energy to replace the old fuel hoses or have it done at a shop. I know its probably a quick fix but I don't want to wear (take a bath) any gas that may spill during the changeover. I'm not afraid to do my own work, I just changed the water pump and valve cover gaskets but the thought of gas splashing on me just doesn't sit well. Oh yea the vets an 81. Thanks
Burning Brakes
Joined: Nov 2006
Posts: 893
Likes: 7
From: Orange Park Florida
Drive the car and burn almost all the gas. Place the car on ramps (the front) so any gas in the tank will be lower than the fuel pump. Place a pan under the fuel pump in case any gas is still in the lines, than start to work. I just completed this project and it is quite easy. Just be careful.
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
the two fuel hoses are easy to change.
As already mentioned, get the preformed ones.
put a pan under the car at the fuel pump area, remove the hoses and replace as quickly as possible. It won't take but a minute per hose. You may get a very small amount of dripping as the hose is disconnected and removed but not much as the fuel is mostly brought up the hardline from the tank by vacuum pressure which won't be there with the car off.
If your concern is fuel gushing out and basically emptying the tank as the hoses are remove that won't happen.
The suggestion to put the front of the car on ramps to have the fuel level in the tank lower than the hoses is not a bad idea either although I didn't do that on either of my vettes when I replaced the fuel hoses and I only got a few drops of fuel that dripped out on both cars.
As already mentioned, get the preformed ones.
put a pan under the car at the fuel pump area, remove the hoses and replace as quickly as possible. It won't take but a minute per hose. You may get a very small amount of dripping as the hose is disconnected and removed but not much as the fuel is mostly brought up the hardline from the tank by vacuum pressure which won't be there with the car off.
If your concern is fuel gushing out and basically emptying the tank as the hoses are remove that won't happen.
The suggestion to put the front of the car on ramps to have the fuel level in the tank lower than the hoses is not a bad idea either although I didn't do that on either of my vettes when I replaced the fuel hoses and I only got a few drops of fuel that dripped out on both cars.
Safety Car
Joined: Jun 2004
Posts: 4,652
Likes: 80
From: Lakeland Florida
I did this on my 75 last month. The front of the car has to be lifted higher than the rear so that the gas will not flow from the stainless steel lines that are mounted on the frame rail.
But I went with steel braided lines and cut my own to fit. I am wondering now about the comments made in this thread about the preformed ones being better.
kdf
But I went with steel braided lines and cut my own to fit. I am wondering now about the comments made in this thread about the preformed ones being better.
kdf
Drifting
Joined: Jan 2005
Posts: 1,438
Likes: 3
From: Florissant MO
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Race Director
Joined: Apr 2003
Posts: 19,345
Likes: 654
From: Tampa, Florida
Well worth the coin....
http://ecklers.com/product.asp?pf_id=41953&dept_id=1282
Drifting
Joined: Sep 2004
Posts: 1,625
Likes: 4
From: Miami FL
Yes..must have tire off and lower radiator hose disconnected. Much easier. Now it I could only find the parts I need.
Race Director
Joined: Apr 2003
Posts: 19,345
Likes: 654
From: Tampa, Florida
thanks...but that is for a 70-81. I have a 69 and can't find any for a 69. Does anybody know if the 70-81 lines will fit a 69? I need the frame to fuel pump for a 69 and I am 99% certain the angle is different than pictured in that 70-81 hose.
Yes..must have tire off and lower radiator hose disconnected. Much easier. Now it I could only find the parts I need.
Yes..must have tire off and lower radiator hose disconnected. Much easier. Now it I could only find the parts I need.
Here you go: main hose from metal line to pump. Looks like a piece of straight hose
http://www.zip-products.com/Zip/prod...D448CBB3AF29C5
and the molded return line:
http://www.zip-products.com/Zip/prod...D448CBB3AF29C5
Melting Slicks
Joined: Feb 2002
Posts: 2,625
Likes: 0
From: Cut n Shoot TX
I did this on my 75 last month. The front of the car has to be lifted higher than the rear so that the gas will not flow from the stainless steel lines that are mounted on the frame rail.
But I went with steel braided lines and cut my own to fit. I am wondering now about the comments made in this thread about the preformed ones being better.
kdf
But I went with steel braided lines and cut my own to fit. I am wondering now about the comments made in this thread about the preformed ones being better.
kdf
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
If the '81 is like the early C3's you can pinch off the rubber line in the rear off the tank with a pair of vice grips, run the car till it uses up the fuel left in the line then replace the front hoses.
Nothing to leak out.
Nothing to leak out.
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
With the above. Just jack up the front end and gas won't drip front tank. It's that gravity thing. Buy preformed hoses which come with new clamps. Should take you 1/2 hour at most.Oh perform above when car is cold.
Drifting
Joined: Sep 2004
Posts: 1,625
Likes: 4
From: Miami FL
So that means about 1 hour for the new guy. Thanks for the links to the hoses. I found Doc Rebuild has an "s" shaped hose for a 69 vette main fuel line similar to the return line hose. I am going to order the new fuel hoses/lines and pump and pray that it all aligns correctly with no leaks. I have to do the fuel pump and the mounting gasket plate as my fuel pump does not hold pressure in the fuel causing me to pump the gas several times to get fuel into the carb before starting. Btw...somebody before me decided to put in a generic Holley fuel pump so that is why I am having fun trying to piece together all the correct parts.
Le Mans Master
Joined: Apr 2004
Posts: 7,106
Likes: 38
From: Newark DE
So that means about 1 hour for the new guy. Thanks for the links to the hoses. I found Doc Rebuild has an "s" shaped hose for a 69 vette main fuel line similar to the return line hose. I am going to order the new fuel hoses/lines and pump and pray that it all aligns correctly with no leaks. I have to do the fuel pump and the mounting gasket plate as my fuel pump does not hold pressure in the fuel causing me to pump the gas several times to get fuel into the carb before starting. Btw...somebody before me decided to put in a generic Holley fuel pump so that is why I am having fun trying to piece together all the correct parts.
Race Director
Joined: Apr 2003
Posts: 19,345
Likes: 654
From: Tampa, Florida
So that means about 1 hour for the new guy. Thanks for the links to the hoses. I found Doc Rebuild has an "s" shaped hose for a 69 vette main fuel line similar to the return line hose. I am going to order the new fuel hoses/lines and pump and pray that it all aligns correctly with no leaks. I have to do the fuel pump and the mounting gasket plate as my fuel pump does not hold pressure in the fuel causing me to pump the gas several times to get fuel into the carb before starting. Btw...somebody before me decided to put in a generic Holley fuel pump so that is why I am having fun trying to piece together all the correct parts.