• Got the Contributing Memberships stuff finally worked out and made up a thread as a sort of "How-To" to help people figure out how to participate. So if you need help figuring it out, here's the thread you need to take a look at -> http://www.corvetteflorida.com/forums/showthread.php?t=3581 Thank you, everyone! Rich Z.

OK what's the trick?

Kap142

Kap142

New member
I am trying to replace the fuel line from the fuel pump to the carb. The nut at the carb is so mucked up:ack2: and rounded off :ack2:that I can't get it properly tight, but, as you know that pre-bent line reminds one of a 2 foot long dead snake (sorry Rich) with riger. I don't want to destroy the old line coming out but right now it's got me stumped.

My question to those with BB's in the 72 year range is what the heck do I need to take apart to gain enough clearance to get the new line in. The Chiltons doesn't help at all.:shrug01:
 
Kap142 said:
My question to those with BB's in the 72 year range is what the heck do I need to take apart to gain enough clearance to get the new line in. The Chiltons doesn't help at all.:shrug01:
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If it's like the LS6 454 I have in my Olga Truck,You'll probly have to remove the water pump!! The line runs behind the water pump and theres no way you can twist it enough different angles to get it out!!:thumbsup:
 
Holy poo poo Batman. It doesn't run behind the WP but does run flat against the block on the right side of the pump. I may just re-secure the old line untill it's necessary to replace a water pump or something that requires that I disassemble the front of the motor. Jeeze who'd a thunk?
 
Kap142 said:
Holy poo poo Batman. It doesn't run behind the WP but does run flat against the block on the right side of the pump. I may just re-secure the old line untill it's necessary to replace a water pump or something that requires that I disassemble the front of the motor. Jeeze who'd a thunk?
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If your's don't run behind the WP you out'ta be able to get it out!!:thumbsup:Mine runs behind the pump between the timing cover and Pump!!:shrug01:
 
Hey Ken,

I am not exactly sure which nut you are talking about but let me see if I can help you out. There are actually two nuts in the area where the line meets the carb. One is on the line and it should be a 5/8" brass nut. Then there is a large nut that screws into the carb. You need a 1" wrench for this one. Between the large nut and the carb is a small paper fuel filter. 1" open end wrench should go onto the large nut just to secure it while you take the 5/8" wrench and back the fuel line nut out of the large nut.

If everything is aligned correctly once you break loose the 5/8" fuel line nut from the larger nut, you should be able to back it out very easily with your fingers. If you are not replacing the small paper filter between the large nut and the carb, there is no need to loosen this and remove.

When installing the new fuel line to the large nut be very careful with the alignment of the fuel line into the large nut. If the flaired end of the fuel line is not seated properly, and you try to screw in the 5/8" brass nut, you will probably strip the threads in the female portion of the large nut. This happens very quickly and when it does happen, it will leak like no tomorrow. Most people think they don't have it tight and they try to tighten it more. Once the threads are stripped, you need to replace the large nut (fitting). You must get the flaired end in correctly and when you do, the brass nut will thread into the large nut by hand. Then you only need about a quarter to half a turn to snug it up.

If you were closer to Ft. Myers I would tell you to bring it over and I would help you get it squared away. If I am not understanding your problem correctly, take a pic of the line going into the carb highlighting the problem area and post it so we can see the situation.

I hope this helps. Let me know how it works out.

Rich
 
Hey Rich, yes I understand what you're saying. Everything related to the 1" inch filter nut is fine. I am talking about replacing the fuel line only so I'm talking the 5/8 brass nut connected to the filter nut and of course the 5/8 which screws on to the pump itself. I am having no problem with getting them on or off but due to the bends in the line itself I can't extract it from the engine to replace it with a perfect one. The existing line functions just fine but you know old Shark owners, I just want it perfect (at least in my eyes).
 
Sorry Ken, I guess I only focused on your first paragraph which talked about the nut being mocked up that you could not get it tight. I did not understand that you have both ends of the fuel line disconnected but you are having difficulty getting it out of the engine compartment to replace it.

My '69 is a little different than your '72. Although the location of the fuel pump and carb are the same, the '69 has another in line fuel filter that is located in front of the passenger side head. Therefore, I have two lines. One that runs from the pump to the in line fuel filter and another that runs from the fuel filter to the carb. So, I have never had a problem getting that section of the fuel line out of the car.

Even so, I just can't envision you not being able to get the line out. My line comes out of the fuel pump and is pointed toward the center of the car. After an inch or two it turns up and comes between the lower radiator hose (it bends around the hose toward the block) and the block, then straight into the in line fuel filter. After the filter it makes a 90 degree (sort of) turn toward the fire wall, then another 90 degree turn toward the carb. Even though mine has the in line filter, I could disconnect at the pump and carb, leaving the filter intact and still pull it out in one piece through the top of the engine compartment. I would have to twist it in a number of directions to get it out.

So, I am not sure what is preventing you from doing the same thing, unless your stainless fuel line runs completely different than mine. I seem to remember that you also have AC in your '72. Is that complicating matters with getting the old line out?

Sorry, but I thought I could be of more help to you Ken!

Let me know how this works out.

Rich
 
It's amazing what a second pair of hands can do. My son came over and with him up top and me under we were able to cork screw the old line out and new one in. 20 minute job.

:thumbsup::thumbsup:Ken:dancer01:
 
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