 Weber, Carb Balance |
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| NARP74 |
 Oct 4 2024, 05:45 PM
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Senior Member  Group: Members Posts: 1,448 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains  |
I was starting to balance my carbs, never looked into them since I bought the car. I ran into some issues with my carbs vs the standard docs I find.
One bank reads 4.5 and 5, the other bank reads 6 and 6 with the snail. When I looked into adjusting the lower reading one, I noticed some odd looking adjustment options. I was expecting to see an air bypass, idle mixture and vacuum port on both sides. I only have it on one side. Pic below. The side missing the air bypass happens to be the lowest reading of all 4 carbs, so how do I adjust that one? Carbs are numbered, 40 IDF 42/43 4C on the base of both.   |
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Replies
| NARP74 |
Oct 10 2024, 12:31 PM
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#2
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Senior Member Group: Members Posts: 1,448 Joined: 29-July 20 From: Colorado, USA, Earth Member No.: 24,549 Region Association: Rocky Mountains |
After a full refresh, not rebuild, the air and numbers are a little better.
1. 7 2. 6 3. 6 4. 7 Got the dwell dialed too. After having these completely apart, I have decided that they are too far gone for my taste. Too many odd things wrong with them that even a full rebuild would not fix. So I think I have bailed on these. I do have another engine with a different set of newer Webers that I will start messing with this winter. |
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Posts in this topic
NARP74 Weber Oct 4 2024, 05:45 PM
Shivers Mine are 40’s but mine have the same adjustments... Oct 5 2024, 12:39 AM NARP74 I was expecting symmetry. I can't find any ot... Oct 5 2024, 08:16 AM infraredcalvin NM i read the question wrong… Oct 5 2024, 11:55 AM NARP74 I pulled one carb off and got some answers, not on... Oct 5 2024, 12:44 PM technicalninja I have a possible inexpensive route for you.
Look... Oct 5 2024, 12:54 PM NARP74 That link is to a utube vid about AFR and engine c... Oct 5 2024, 10:19 PM Superhawk996 Make sure the idle air bypass screw on the 5 bore ... Oct 5 2024, 11:07 PM
930cabman
Make sure the idle air bypass screw on the 5 bore... Oct 6 2024, 07:20 AM
MikeK
Make sure the idle air bypass screw on the 5 bore... Oct 6 2024, 11:38 AM technicalninja Updated my post to reflect CORRECT target.
You... Oct 6 2024, 11:42 AM |
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