Sunday, August 1, 2010

Have a Drink!

I've been messing around with things a bit (as I try to figure out how my intake manifold installation went awry—more on that later), so I delved into the fuel lines that connect the mechanical fuel pump to the QFT carb. I wanted to replace the hard line, various brass fittings, and the -8 carb fuel kit.

Although the old parts worked well enough, they looked a bit cobbled together, and the faded carb fuel kit leaked once in a while probably from being 7 or 8 years old. I think the hard line on the front of the engine seems like a good idea if you have a mechanical fan, or if the fuel line snakes around and through many pulleys and belts. Mine doesn't so I found some Russell and Edelbrock fuel parts featuring matching black anodizing, all in -6 AN sizing.

From the older Carter fuel pump I needed a Russell 660823 Black ProClassic 90 Degree Adapter Fitting (-6 AN and 1/4" NPT) to replace the larger 3/8" NPT fitting or elbow that came with the Edelbrock 81234 ProClassic Fuel Line Kit. You might not need the smaller elbow depending on your fuel pump. Then I needed a Russell 660463 Black ProClassic Straight Adapter Fitting (-6 AN and 3/8" NPT) to attach the line to the new Russell 641093 Dual Inlet Carburetor Kit (-6 AN with 1/8" NPT gauge plug for Holley 4150-style carb). This 641093 is advertised as not having a gauge plug in some stores and having one in others, mine does. I decided to add a fuel pressure gauge Auto Meter 2172 Autogage Mechanical Fuel Pressure Gauge (1/8" NPT).

The lines are a sufficient length, even with a taller-than-stock RPM Air Gap intake manifold. I didn't include an inline fuel filter, also black and from Russell, but maybe I will add it one day.

I used Permatex Thread Sealant 56521 on the NPT threads and spent about $75 on a pair of Aluminum fitting wrenches, and an adjustable one. I might have just taped up a regular wrench to handle tightening the anodized aluminum fittings, but my 2001 Bullitt has a full replacement -AN fuel system so I can use them there too. I think the black ProClassic lines look pretty good, and I might even be able to remove the carb fuel bowls with this style of "soft" carb fuel kit installed.





I should mention that regarding the Edelbrock 81234 ProClassic Fuel Line Kit, there seems to be a design change with the fitting that attaches the coupler to the braided line near the fuel pump. The larger fitting failed on mine when I installed it the second time, so after speaking with Edelbrock's Tech Line I returned it to Amazon. The smaller fitting in the image was sent to me as a replacement and appears to be the newer design and works fine. (Amazon doesn't seem to carry this line anymore, but other places do.)









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