 New carbs- one barrel pulling in too much air |
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| tornik550 |
 Jul 1 2013, 07:45 PM
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Senior Member  Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None  |
I purchased brand new weber 44 idf carbs from redline weber recently. I set everything equally between all barrels. I set the idle stop at 1/2 turn on both carbs. The engine started right up. I disconnected the linkage. Checked the air flow with a snail. Equal readings on cyl 1,2. Cyl 3 was pulling in so much air it was off the chart and cyl 4 was barely getting any air. I backed off the idle stop completely and I am still getting a huge amount of air in cyl 3 and almost none in cyl 4.
I took the carb off and visually inspected. Everything appears normal. Both butterflies appear closed. FYI- I am certain that this is not a valve or cylinder problem. Everything was fine with my previous setup. Any ideas? |
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Replies
| Jake Raby |
Jul 3 2013, 01:42 PM
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#2
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
This was a common issue with the "Genuine" Webers in 2008 when I stopped using them. The throttle shafts were twisted right out of the factory among other issues.
Too many people buy the name expecting them to be the way they always were before. Not the case. |
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Posts in this topic
tornik550 New carbs- one barrel pulling in too much air Jul 1 2013, 07:45 PM
kg6dxn Temporarily swap the carbs right & left. If th... Jul 1 2013, 08:12 PM
tornik550
Temporarily swap the carbs right & left. If t... Jul 1 2013, 08:20 PM brant there is a balance adjustment screw between barrel... Jul 1 2013, 08:16 PM tornik550
there is a balance adjustment screw between barre... Jul 1 2013, 08:22 PM Dr Evil Dang, Steve. You have a fecal touch with carbs. Jul 1 2013, 08:28 PM tornik550
Dang, Steve. You have a fecal touch with carbs.
... Jul 1 2013, 09:23 PM McMark Not the first time I've seen new webers with t... Jul 1 2013, 08:38 PM ThePaintedMan
Not the first time I've seen new webers with ... Jul 1 2013, 09:38 PM rhodyguy by balance adj you mean air bypass screws right? d... Jul 2 2013, 06:45 AM ThePaintedMan
by balance adj you mean air bypass screws right? ... Jul 2 2013, 07:37 AM McMark
Bad manufacturing seems to be a very good reason. Jul 2 2013, 08:45 AM Mblizzard I bet you got the set that I sent back to Redline... Jul 2 2013, 09:14 AM yeahmag This isn't necessarily abnormal. Close all the... Jul 2 2013, 10:34 AM rhodyguy that is NOT a good nor a rational reason mark. ;) ... Jul 2 2013, 11:24 AM rhodyguy to add to my post. closing all of the by-pass scre... Jul 2 2013, 11:38 AM yeahmag It's just the opposite. With all the bleed scr... Jul 2 2013, 12:05 PM tornik550
It's just the opposite. With all the bleed sc... Jul 2 2013, 12:17 PM ThePaintedMan
One of the problems is that I cannot reduce the a... Jul 2 2013, 12:27 PM yeahmag Now that... Is a problem. That sounds like a bad t... Jul 2 2013, 12:23 PM McMark You can't really see if the throttle plates ar... Jul 2 2013, 12:59 PM stugray
you need to be very careful loosening those scre... Jul 2 2013, 01:05 PM rhodyguy for heavens sake. how in the hell, with all 4 by-p... Jul 3 2013, 08:11 AM McMark Sorry you're the one that's backwards. Al... Jul 3 2013, 11:32 AM tornik550 I found a way to fix my problem. Return the carbs... Jul 3 2013, 01:49 PM tornik550 UPDATE-
The issue appears to be that the throttle... Jul 4 2013, 06:43 PM McMark They realized that because of their name reputatio... Jul 4 2013, 11:56 PM |
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