The Stovebolt Site Forums The Shop Area Engine Shop Holley/Weber and Fuel Fittings

Need to plumb out the gas lines between the fuel pump and up to the dual Holly/Webers. Was also interested in going into a fuel block before the carbs that I could mount a pressure gauge on. Am thinking that I want to do this in stainless steel tubing and fittings (flare or compression?). Has anyone already done this? What size fittings and thread TPI did you buy? Any good sources besides McMaster Carr? Thanks in advance.

I used dual walled steel brake line and compression fitting for my fuel lines. Works great! The fuel log you can find lots of places: jegs, speedway, ebay...

One thing you might consider is a fuel pressure regulator- Check the specs on your carbs and set the regulator to that. Under normal conditions you won't have problems without it but at high rpms the mechanical fuel pumps increase production, so to speak, and can flood your carbs.

I agree with NM51 about the regulator. As long as you're gonna have a gauge, you might as well have the ability to adjust it.

I spose the material you use for the fuel line depends in part on the look you're after. I've had good luck with braided steel shrouded line and Russel's or Earl's fittings. I've generally stayed with the -AN6 size. It doesn't require the effort to bend like steel line, but then you might lose as much blood while installing the fittings and gettin stabbed over and over again with the braiding.

I'd sure like to see pics of your installation, either in progress or finished...or both.

I believe those are to be regulated at 3.5 lbs of pressure.Call tom langdon to make sure.Hope this helps.

On my 3X Carter/Weber setup I used steel brakeline and brass compression fittings.
http://www.mongosgarage.com/projects/533100/engine/1100_3156.jpg
I was under the understanding that these carbs were internally regulated as well so didn't worry about a pressure regulator or gauge (figured fewer potential points of failure the better).
It ran great this way.
When the truck goes back together, It will get the same steel lines back with polished up copper lines over them.
MONGO

KCMongo. I'm using the Carter/Weber carbs and need a low profile air cleaner for hood clearence. Where did you get yours? Would you happen to have the part number.

Like you I used the steel lines and compression fittings. The only difference is I also used the steel line between the fuel pump and the carbs.

Thanks for any info you can provide.

Ray; here's a link to an album with pictures.

http://community.webshots.com/user/geezer

Did some searching through Mcmaster/Carr's catalog and would still like to go with SST pipe. After some mixing and matching, think I'll go with the Yor-Lok SST compression fittings as well. They have double ferrules and are rated as instrumentation fittings. Expensive but only need a few. Now to make sure the thread sizes are correct to fit the pump, fuel block and carbs. Thought that the stock mechanical pump put out about 3 to 4 psi. Will take NM's advice and put in a regulator.

thems some pretty nice shots 49

KCMongo & twe56,

Why did you choose Carter/Weber carbs? I might be changing the carbs on my dual-Offy 261 and checked out Langdon's site, He has the Holley/Weber (that he has listed for a while) and now the Carter/Weber also. Any advice you have would be appreciated. Thanks.

Mongo, your setup look very nice. I also used standard compression fittings and brake line tubes. Easy to make and easy to disconnect/reconnect (when playing with the leaky Rochesters); and, the price and availability is right. Where did you get you air cleaners?

Tim

Looking good 49 geezer!

Found a better picture showing the fuel line:
Fuel Lines
When the truck goes all back together this summer, it will end up with hard line from the pump all the way up.

I couldn't find what I wanted for air cleaners either, when I ordered my carbs from Tom Langdon I went ahead and ordered the base he sells to convert oil bath air cleaners over to paper filters on these carbs, It fits right over the carbs and is round with a couple flat sides.
After opening every air cleaner box at 2-3 of my local auto parts stores, I found the air filter I needed over in the small section for lawn mowers.
Then I just needed tops, I couldn't find the one's I wanted so one day I was at the metal store asked them if they could cut me a piece of AL in a circle. They said that all they could do was sheer stuff straight, disappointed I went over and started digging through their bin of Drops (Leftover cut off's) and there I found the biggest AL rod I'd ever seen it was about 6 Inches in diameter and about 2 feet long.
Back to the counter, "Can you slice me off about three slices of this, Like Bologna?"
"Sure" say's the metal guy.
So I ended up with 3 disks about 3/8th thick.
AL disk
AL disk side

I don't have a lathe so I drilled a hole in the center of each disk, slipped through a bolt and chucked it up in my drill press.
Top in drill press.
And started out with coarse sand paper while it spun. I kept going down to finer and finer sandpaper and eventually steel wool till I got the look I was going for.
Add a stainless wing nut and put it all together.
Air Cleaner
All Three

tclederman,
You said it! "Leaky Rochesters!!" I have a whole box of em at the house I rebuilt several myself trying to get 3 good, Non leaky one's I was ready to take some to my local machine shop and have them decked and started talking to a guy in my club that just put one of the Holley/Webers Tom sells on his 261 and was very happy with it. After a long, very informative call to Tom Langdon I decided that was the way I was going to go, Tom's a great resource. Tom said the Carter/Webers flowed a little less than the Holly/Webers and recommended going with them since I'd be running 3. Plus I think at the time the Carters were a bit cheaper.
We bolted them on and the truck ran great with very little adjustment.

Mongo

Mongo! Way to go on the AL. My machinist neighbor would love it. Will post new pics as I get this sucker plumbed out.

tclederman, When I called Langdon he suggested the Carter/Weber -- I agreed for the following reasons: They are new, progessive, and have an electric choke. As stated earlier I have run the engine on a test stand. I have both electric chokes connected. Starting -- close the chokes with linkage like normal -- hit gas once -- hit the key -- engine fired right up and the electric chokes took over as engine warmed up -- I LIKE!!!