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> Weber 40 IDF help, My usual guy had back surgery and can't help now
mmichalik
post Apr 17 2025, 07:12 PM
Post #1


MikeM
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Joined: 27-January 16
From: Valley Center, CA
Member No.: 19,600
Region Association: Southern California



Hi everyone,
My 75 is ready to drive again. I fixed the oil leak from the main seal a couple of weeks ago and all is good.
As I continue to do the shake out of the car, since I'm on the tail end of the restoration, I've had one problem the entire time and I need to get it fixed now.
Cold or hot, as I'm driving there's a flat spot when I shift between gears. It bogs and then picks up again.
It's particularly noticeable from 1st to 2nd and 2nd to 3rd. Sometimes even when starting for a dead stop.
I know NOTHING about carbs but I'm willing to jump in.
Does anyone have any experience with these symptoms? Is there a write up on the world that I've missed?
Would anyone be willing to work for high end craft beer and good pizza (along with an hourly rate) (IMG:style_emoticons/default/smile.gif) I'm in north county inland San Diego (Valley Center)
Mike
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Posts in this topic
mmichalik   Weber 40 IDF help   Apr 17 2025, 07:12 PM
technicalninja   First thing I'd check is if the accelerator pu...   Apr 17 2025, 07:23 PM
Superhawk996   What are you using for ignition? The reason I ask ...   Apr 17 2025, 10:31 PM
mmichalik   What are you using for ignition? The reason I ask...   Apr 17 2025, 11:00 PM
porschetub   Hi everyone, My 75 is ready to drive again. I fi...   Apr 17 2025, 10:49 PM
mmichalik   Hi everyone, My 75 is ready to drive again. I f...   Apr 17 2025, 11:10 PM
nditiz1   So 2 things will be needed, 1 of which is easy and...   Apr 18 2025, 05:24 AM
Superhawk996   The 2nd item that is needed is an AFR gauge. A...   Apr 18 2025, 05:48 AM
930cabman   The 2nd item that is needed is an AFR gauge. ...   Apr 18 2025, 09:51 AM
densible1   From my experience with 44 idf's and a bluetoo...   Apr 18 2025, 10:49 AM
Superhawk996   One thing that is critical to tuning IDF’s is to...   Apr 18 2025, 11:07 AM
nditiz1   A great tip that John from ACN told me was to remo...   Apr 18 2025, 11:31 AM
dtmehall   did the car ever run correctly with the webers and...   Apr 18 2025, 12:45 PM
flxzcat   Drilling new progression holes is a last resort an...   Apr 18 2025, 04:26 PM
Superhawk996   Drilling new progression holes is a last resort a...   Apr 18 2025, 07:10 PM
dtmehall   if you want to investigate weber carb options cb p...   Apr 18 2025, 05:08 PM
dtmehall   :agree:   Apr 18 2025, 07:35 PM
mmichalik   Going to pull the emulsion tubes and idle jets to ...   Apr 18 2025, 11:23 PM
Superhawk996   Need the Venturi size too!! Very often th...   Apr 19 2025, 05:38 AM
CCE   Hi everyone, My 75 is ready to drive again. I fi...   Apr 20 2025, 02:31 PM
mmichalik   @porschetub [b]@[url=http://www.914world.com/bbs...   Apr 20 2025, 07:30 PM
Superhawk996   Venturi's are 32 Yeah that’s gonna’ suc...   Apr 20 2025, 09:11 PM
mmichalik   Just an FYI, my goal is to have a solid driver tha...   Apr 21 2025, 08:46 AM
930cabman   Just an FYI, my goal is to have a solid driver th...   Apr 21 2025, 11:38 AM
mmichalik   Just an FYI, my goal is to have a solid driver t...   Apr 21 2025, 12:30 PM
VaccaRabite   Just an FYI, my goal is to have a solid driver th...   Apr 21 2025, 01:19 PM
Superhawk996   Pick your Venturi 1st Then general rule of thumb...   Apr 21 2025, 09:52 AM
mmichalik   OK, I'm going in today. :) Changing the vent...   Apr 27 2025, 10:35 AM
mmichalik   Just finished changing the venturi's, they wer...   Apr 27 2025, 12:53 PM
porschetub   Just finished changing the venturi's, they we...   Apr 27 2025, 07:32 PM
mmichalik   Drove it. Venturi's made a huge difference, n...   Apr 27 2025, 04:39 PM
930cabman   Drove it. Venturi's made a huge difference, ...   Apr 27 2025, 05:33 PM
Eric_Shea   Put 28's in it. We have a jetting spreadsheet...   May 1 2025, 01:42 PM
930cabman   Invest in Pat Bradens book, Weber Carburators   May 1 2025, 06:05 PM
mmichalik   @Eric_Shea Agreed, they made a HUGE difference to...   May 2 2025, 11:41 AM
930cabman   [b]@[url=http://www.914world.com/bbs2/index.php?s...   May 2 2025, 04:10 PM


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