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> Installing dual carbs for the first time, Nevermind! Sticking with the Fuel Injection
JRust
post May 25 2010, 05:29 PM
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Okay so I am putting a nice set of dual weber 40's on the LE. Going to get my break in miles done & drive it while I work on the FI stuff on the side. I get the basics of how to get them on. Was hoping someone could give me a nice step by step so I don't miss anything. Or put it on in the wrong order. I got the complete setup from Rich & he included everything needed except linkage which I picked up.
I allready installed the distributor & the intakes. I know I need to get my car to TDC & make sure my firing order is right.

Okay lay it on me (IMG:style_emoticons/default/biggrin.gif) . In simple terms please (IMG:style_emoticons/default/blink.gif)
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type2man
post May 25 2010, 05:49 PM
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Bolting them on is pretty straight forward. The important part would be figuring out how much accelerator cable length you have and where it will be mounted and then you can work the linkage around it. Post up some pics of your carbs and the linkage, and I can help you out...
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jmill
post May 25 2010, 06:53 PM
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Buy the weber tech manual. It's worth the money IMHO. It will walk you through the initial carb and linkage setup. Read it until you understand how every aspect of the carb is supposed to work. It makes it much easier.
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JRust
post May 25 2010, 07:33 PM
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QUOTE(type2man @ May 25 2010, 04:49 PM) *

Bolting them on is pretty straight forward. The important part would be figuring out how much accelerator cable length you have and where it will be mounted and then you can work the linkage around it. Post up some pics of your carbs and the linkage, and I can help you out...


Here are pics


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SirAndy
post May 25 2010, 09:47 PM
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QUOTE(JRust @ May 25 2010, 06:33 PM) *

Here are pics

That fuel pump is going to drive you nuts ...
(IMG:style_emoticons/default/shades.gif) Andy
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JRust
post May 25 2010, 09:58 PM
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QUOTE(SirAndy @ May 25 2010, 08:47 PM) *

QUOTE(JRust @ May 25 2010, 06:33 PM) *

Here are pics

That fuel pump is going to drive you nuts ...
(IMG:style_emoticons/default/shades.gif) Andy

Tell me which one to get (IMG:style_emoticons/default/confused24.gif)
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Kirmizi
post May 25 2010, 11:38 PM
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Get a rotary, Carter IIRC, but I can't remember the part number. Probably do a forum search and find it easy enough though. I bought mine at a local FLAPS.
Waaaay quieter than that Facet pump! (IMG:style_emoticons/default/biggrin.gif)
Mike
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KaptKaos
post May 26 2010, 12:38 AM
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http://www.cbperformance.com/catalog.asp?ProductID=577

3.5 PSI iirc
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Cevan
post May 26 2010, 05:20 AM
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Even if those are new carbs, they could probably use a good cleaning. Look here.
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Gint
post May 26 2010, 05:47 AM
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You'd be a lot better off just getting the FI straightened out. You're going to waste a lot of time and money dickin with those carbs.
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dr914@autoatlanta.com
post May 26 2010, 07:54 AM
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Don't do it and ruin this "special" car!!!!



QUOTE(JRust @ May 25 2010, 04:29 PM) *

Okay so I am putting a nice set of dual weber 40's on the LE. Going to get my break in miles done & drive it while I work on the FI stuff on the side. I get the basics of how to get them on. Was hoping someone could give me a nice step by step so I don't miss anything. Or put it on in the wrong order. I got the complete setup from Rich & he included everything needed except linkage which I picked up.
I allready installed the distributor & the intakes. I know I need to get my car to TDC & make sure my firing order is right.

Okay lay it on me (IMG:style_emoticons/default/biggrin.gif) . In simple terms please (IMG:style_emoticons/default/blink.gif)
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tomeric914
post May 26 2010, 08:33 AM
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Tech manual:

http://www.cbperformance.com/catalog.asp?ProductID=4


You'll need a synchrometer as well:

http://www.cbperformance.com/catalog.asp?ProductID=572

or

http://www.pegasusautoracing.com/productde...s.asp?RecID=826


Prepare to become a meticulous expert in Webers if you want them to run right.

Float setting is critical because it affects the transition between jets.

Jetting is done via seat of your pants. What works on one motor may not work on your motor.

Idle jets function at more than just idle. Transition to mains is at about 2500-3000 and to air correction jets at 4500-5000 with F11 emulsion tubes

CLEAN EVERYTHING. Even new carbs need to be cleaned. All it takes is one little chunk to come loose and get stuck in one of the many jets.

If you don't have the rain tray on your engine lid installed, make sure to have rain hats over the air filters. Water can get in through the top of the carbs if not sealed up. Rainwater is bad enough. Depending on what you use to wash your car, soapy water is bad news inside a Weber.

I prefer the CBPerformance hex bar setup that integrates the pivot point into the air filter base (PN 3413 and 3414). Makes for a clean installation and no possibility for air to bypass the filter or water to get into the carb. http://www.cbperformance.com/catalog.asp?ProductID=547

Make sure the intakes are 100% sealed. Vacuum leaks are not your friend.

Invest in earplugs for DE's. WOT is loud, even through a helmet.

If you understand how Webers work, you'll enjoy them. If not, you won't. I have 2 cars with dual IDFs on them, one of which I have had Webers on for close to 15 years now.
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computers4kids
post May 26 2010, 08:58 AM
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Jamie,
Seems like you should be able to buy a complete "working" FI for a 74 off of someone, including the dizzy. I know your'e baffled, as well as others who looked at your car at the WCR, but I really think getting the FI right is the best for such a rare car as yours--even at the get-go.. A working "stock" FI is pretty much plugnplay, if you don't want to troubleshoot yours.

I assume you have a different dizzy for the carbs?


Good Luck,
Mark
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sean_v8_914
post May 26 2010, 09:39 AM
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call me or PM. I'll try to help with your FI
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sean_v8_914
post May 26 2010, 09:41 AM
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sean_v8_914
post May 26 2010, 09:42 AM
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sean_v8_914
post May 26 2010, 09:42 AM
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sean_v8_914
post May 26 2010, 09:43 AM
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sean_v8_914
post May 26 2010, 09:44 AM
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sean_v8_914
post May 26 2010, 09:44 AM
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