Dual IDF linkage help

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mdrburchette
Posts: 5754
Joined: Wed Jan 25, 2006 5:49 am
Your car is a: 1972 Fiat 124 Sport
Location: Winston-Salem, NC

Dual IDF linkage help

Post by mdrburchette »

I rebuilt the dual Webers on my 71 but ever since I've had this car, I have not been happy with the cable linkage from the original acc rod to the carbs. The cable was too short and it would bind up, but once I swapped the carbs out for the newly rebuilt ones, I'm really not happy with this setup. Does anyone have suggestions on a different way? What are you guys with dual Webers doing for linkage?
1972 124 Spider (Don)
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Dual IDF linkage help

Post by BEEK »

ill take a few pictures of my setup, it has worked flawlessly. 1977-1980 carb style valve cover mounted twist linkage. lengthened the long side arm, put a extra bend in the rod, hooks up and works perfectly no binds. im sure there are many other ways, just my idea :mrgreen:
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
So Cal Mark

Re: Dual IDF linkage help

Post by So Cal Mark »

Denise
can you post a pic of your cable setup? I'm curious what cable and attachment you're using on the pedal end. I've been using the FI cable with a bracket bolted to the bottom of the intake between the carbs
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thechadzone
Posts: 220
Joined: Sun Feb 03, 2008 3:31 pm
Your car is a: 1969 Fiat 124AS Spider
Location: Eugene, Oregon

Re: Dual IDF linkage help

Post by thechadzone »

I couldn't figure out how to get the linkage between a pair of Weber IDF 70 Series carbs for use on the factory Waffle manifold. SO, not only did I retain the outboard Volkswagen linkage; I took to it with some rod & tubing from Home Depot, some brackets from existing stock, a few hiam joints, a MIG welder, my permit to grow otherwise illegal plants, and a bit of quality time.

The result was this:

[url=http://www.flickr.com/photos/thech ... .jpg[/img]
creswell and setting up catamaran 080 by thechadzone, on Flickr[/url]


[url=http://www.flickr.com/photos/thech ... .jpg[/img]
creswell and setting up catamaran 122 by thechadzone, on Flickr[/url]

[url=http://www.flickr.com/photos/thech ... .jpg[/img]
creswell and setting up catamaran 093 by thechadzone, on Flickr[/url]

It works very well, and the pedal feel is very good. However, I'm still interested in how to use the factory center linkage with IDF 70 carbs on the factory Waffle manifold. I did switch out several of the carbs' components from VW to a more Twin Cam oriented configuration. Mine is not the prettiest set-up, but I'm proud of it the same way Dr. Frankenstein was proud of his creation. This motor is coming out soon, and I look forward to making it pretty...
So Cal Mark

Re: Dual IDF linkage help

Post by So Cal Mark »

that's quite a creation. To use 70 series carbs on the early flange intakes you have to shorten the throttle shafts on the carbs.
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Dual IDF linkage help

Post by BEEK »

thats quite the gusset creation
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
FMO

Re: Dual IDF linkage help

Post by FMO »

Hi!


This is how I have done it. Very easy, and it works pretty well :-)

http://home.online.no/~ellholt/fiat124s ... =&pExPic=0;


Best regards
FMO
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