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Join Date: Feb 2005
Location: LA
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Webers - Startup Tuning
I have a set of Weber Ida 40's that I am installing on my 2.4 w/ Ecams for the first time. I was wondering if for my first adjustment this would be correct
Idle Adjusting Screws (Red) - 2 Turns out Air Correctors (Yellow) - All the way in Then make minor minor adj to the Air correctors using an air flow gauge.. Correct?  I know, I know.. the carbs "look bad" .. that'll be the next thing to do. Im mainly concerned w/ Running at this point.. . Wait'll you see the rest of the engine.. I dont think you'll be disappointed. : ) Thanks
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71 Targa 2.4 WEBERS 915 box Drivetrain - http://forums.pelicanparts.com/porsche-911-technical-forum/410787-drivetrain-project-complete-3yrs-pics.html Interior - http://forums.pelicanparts.com/porsche-911-technical-forum/452686-interior-refurb-carbon-fiber-71-a.html#post4433500 |
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10-25-2007, 05:41 PM
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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Search my name and "webers" and you'll find links to a 7-step approach that will get you started and tuned. I wasnt the author but I re-posted it recently as it works.
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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10-25-2007, 05:44 PM
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
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Also, the red-boxed ones aren't "idle adjusting screws," they are your mixture screws. They have the most impact on misture at lower rpm, but it is the mixture not the idle they are adjusting.
Your idle adjustment screws are on the end of the carbs toward the back of the car and act on the linkage. The yellow-circled ones are indeed your air screws. Start with them out 1/8 to 1/4 turn and follow the instructions in the link. good luck
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy |
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10-25-2007, 05:47 PM
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Quote:
Ill search.. I hope I can find it.. I never have good luck w/ the search tool...
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71 Targa 2.4 WEBERS 915 box Drivetrain - http://forums.pelicanparts.com/showthread.php?t=410787 Interior - http://forums.pelicanparts.com/showthread.php?p=4433500#post4433500 |
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10-25-2007, 07:04 PM
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10-26-2007, 02:44 AM
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Thanks, this should come in handy!
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71 Targa 2.4 WEBERS 915 box Drivetrain - http://forums.pelicanparts.com/showthread.php?t=410787 Interior - http://forums.pelicanparts.com/showthread.php?p=4433500#post4433500 |
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10-26-2007, 07:44 AM
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Wer bremst verliert
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
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Nice one John.
Here's the link to the tuning instructions. Hope that helps. Weber rebuild, junk found and reference to good thread The problem I had was the PO had a mixture screw from another model of Webers installed in one body. I had to back that one way out to match the mixture to the others but now its spot-on. (I think.) Wideband O2 sensor goes on tomorrow.
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2007 911 Turbo - Not a toy 1985 911 Cab - Wife's toy 1982 911 3.2 Indiash Rot Track Supercharged track toy 1978 911 3.0 Lichtbau toy "Gretchen" 1971 911 Targa S backroad toy Last edited by JohnJL; 10-26-2007 at 03:54 PM.. |
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10-26-2007, 03:50 PM
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