 Dual Weber IDF 40s, Carb Rookie question... |
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| malcolm2 |
 Apr 25 2023, 01:53 PM
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Advanced Member  Group: Members Posts: 2,749 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
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Hello everyone. I will preface by saying that this is an engine from a 914. (IMG:style_emoticons/default/piratenanner.gif)
But it is in my VW Bus. Just now getting it moving down the road. Everything is new. Carbs are new and I am a carb rookie, as well. Bought them from Aircooled.net and had them cleaned and set-up for the bus. My 914 has L-Jet FI, this group has taught me enough about that system to be dangerous. So here is my question for the carb experts. What should the Pump Valve spray look like? It seems erratic and drippy. It kicks in 1st as I open the throttle, not a spray but pore, really. I will say that I see that in all 4.   |
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Posts in this topic
malcolm2 Dual Weber IDF 40s Apr 25 2023, 01:53 PM
r_towle You are using the idle bypass screw to make up the... May 9 2023, 08:37 PM
malcolm2
You are using the idle bypass screw to make up th... May 9 2023, 08:46 PM r_towle 3&4 are one carb?
Not sure how you are numberi... May 9 2023, 08:48 PM malcolm2
3&4 are one carb?
Not sure how you are number... May 10 2023, 05:54 AM r_towle
3&4 are one carb?
Not sure how you are numbe... May 10 2023, 09:12 AM r_towle I may be missing something, but when I start from ... May 9 2023, 08:59 PM malcolm2
I may be missing something, but when I start from... May 10 2023, 05:09 AM malcolm2 Question from 930 Cabman was for mixture screws. T... May 10 2023, 04:58 AM 930cabman
Question from 930 Cabman was for mixture screws. ... May 10 2023, 05:06 AM malcolm2
Question from 930 Cabman was for mixture screws.... May 10 2023, 05:13 AM malcolm2 top 1/2 of PAGE ONE of http://www.redlineweber.com... May 10 2023, 05:38 AM 930cabman I have always closed the air bypass screws and nev... May 10 2023, 05:42 AM malcolm2 I found these posts from other forums.... this is ... May 10 2023, 05:43 AM 930cabman Personally the twin Webers I have worked with have... May 10 2023, 05:53 AM malcolm2 as for this statement about JETS..... i reported t... May 10 2023, 06:03 AM Superhawk996 You’ve got something a bit wonky. All 4 idle mi... May 10 2023, 06:43 AM malcolm2 I did not pull the other plugs to see how they loo... May 10 2023, 06:57 AM Superhawk996
I did notice that if the nut holding the pulley... May 10 2023, 07:01 AM Superhawk996 A note of encouragement.
Weber’s are among the... May 10 2023, 06:59 AM malcolm2 Maybe a good measurement. But I don’t hear or fe... May 10 2023, 11:37 AM Superhawk996
On the snail video, give me a time marker of what... May 10 2023, 11:12 PM rfinegan post another video of how its running, after you ... May 10 2023, 12:35 PM malcolm2 Wouldn’t the original video be worthless now tha... May 11 2023, 06:03 AM Superhawk996 Sorry, was late for me and I was tired. Those tim... May 11 2023, 06:20 AM malcolm2 Rich as expected. 1 & 2 do look better, but s... May 11 2023, 09:09 AM rhodyguy 3-4 are running really fat. May 11 2023, 09:32 AM r_towle Reading plugs happens two ways
One at idle….
The... May 11 2023, 09:38 AM r_towle Reading plugs happens two ways
One at idle….
The... May 11 2023, 09:39 AM 930cabman If I am checking plugs, I will run WOT for a short... May 11 2023, 09:42 AM gnomefabtech Big transition bogging is often caused by not enou... May 11 2023, 11:18 AM Superhawk996 I’d start with a fresh set of plugs - once they ... May 11 2023, 01:08 PM nditiz1 2 things you need to understand for carb jetting.
... May 11 2023, 06:59 PM malcolm2 kCXB0GVAgBA
Tomorrow i will balance with the bypa... May 13 2023, 06:16 PM Jack Standz
kCXB0GVAgBA
Tomorrow i will balance with the byp... May 14 2023, 06:28 AM nditiz1 Going good. If the front to back is within a 1/2 ... May 13 2023, 07:54 PM malcolm2 gonna get the BIG gauge on there today and see if ... May 14 2023, 07:23 AM malcolm2 Here is a note about the plate and covering the sm... May 14 2023, 07:28 AM malcolm2 A BIG THANK YOU to ALL...... great to have the kno... May 14 2023, 07:38 AM r_towle I have a lawn mower that won’t start after sitti... May 14 2023, 09:18 AM malcolm2
I have a lawn mower that won’t start after sitt... May 14 2023, 09:23 AM r_towle
I have a lawn mower that won’t start after sit... May 14 2023, 09:28 AM GBX0073 Appreciate all the Information. in this thread
In... May 14 2023, 11:07 AM 930cabman
Appreciate all the Information. in this thread
I... May 14 2023, 04:44 PM malcolm2 Well, I had hoped that WE were done. I got the by... May 14 2023, 03:05 PM r_towle
Well, I had hoped that WE were done. I got the b... May 14 2023, 05:07 PM nditiz1 Most likely it is a lean pop. The svda distro hoo... May 14 2023, 05:33 PM Superhawk996
Most likely it is a lean pop.
This is where yo... May 14 2023, 06:59 PM malcolm2 I have been doing some searching about the Pump ad... May 15 2023, 09:35 AM Superhawk996
I have been doing some searching about the Pump a... May 15 2023, 09:51 AM malcolm2 In High School, I had a buddy.... used to buy and ... May 16 2023, 07:54 PM Superhawk996
Now, who is gonna tell me what adjustment or tw... May 18 2023, 06:58 AM rhodyguy I think you got it. Button it up and drive around.... May 16 2023, 08:11 PM 930cabman This is a great experiment for us carb guys. I hav... May 17 2023, 10:10 AM GBX0073 T :beer2: oo US Carb Guys :DRUNK: :beer2: May 17 2023, 12:52 PM r_towle Carbs are better than FI May 17 2023, 12:58 PM nditiz1 I'm a carb guy and do not think carbs are bett... May 17 2023, 03:51 PM r_towle 1) carbs are better than FI
2) you cannot turbo a ... May 17 2023, 04:47 PM malcolm2 Update: added 1/2 a turn today. Total of 2-1/2 tur... May 21 2023, 03:41 PM 930cabman
Update: added 1/2 a turn today. Total of 2-1/2 tu... May 21 2023, 05:16 PM malcolm2
Update: added 1/2 a turn today. Total of 2-1/2 t... May 22 2023, 06:33 AM porschetub
Update: added 1/2 a turn today. Total of 2-1/2 tu... May 21 2023, 10:38 PM malcolm2
Update: added 1/2 a turn today. Total of 2-1/2 t... May 22 2023, 06:39 AM rfinegan Did you try to pull the main stack, and drive arou... May 22 2023, 07:58 AM malcolm2
Did you try to pull the main stack, and drive aro... May 22 2023, 12:15 PM r_towle
Did you try to pull the main stack, and drive ar... May 22 2023, 01:19 PM malcolm2
[quote name='malcolm2' post='3079014' date='May 2... May 22 2023, 04:30 PM rfinegan I bring this up as it seem to be a lot of talk up ... May 22 2023, 04:55 PM nditiz1 You will never know whether you are lean or rich w... May 22 2023, 09:24 AM malcolm2
You will never know whether you are lean or rich ... May 22 2023, 12:12 PM nditiz1 AEM UEGO wideband is the one I use in almost every... May 22 2023, 12:40 PM r_towle I’m a big believer in ensuring the carbs are per... May 22 2023, 12:43 PM malcolm2
I’m a big believer in ensuring the carbs are pe... May 22 2023, 12:53 PM r_towle Watch the movement of both carbs just off idle.
Th... May 22 2023, 01:15 PM malcolm2
Watch the movement of both carbs just off idle.
T... May 22 2023, 07:04 PM nditiz1 Oh wow I missed this, yeah you definitely need to ... May 22 2023, 04:29 PM malcolm2
Oh wow I missed this, yeah you definitely need to... May 22 2023, 04:59 PM rfinegan If you have big differences in from and back on a ... May 22 2023, 04:59 PM porschetub
If you have big differences in from and back on a... May 22 2023, 10:56 PM r_towle
If you have big differences in from and back on ... May 22 2023, 11:13 PM porschetub
[quote name='porschetub' post='3079118' date='May... May 24 2023, 10:34 PM rfinegan Sounds much better...did you sync with the snail o... May 22 2023, 07:37 PM malcolm2
Sounds much better...did you sync with the snail ... May 22 2023, 07:44 PM r_towle That sounds better, much better.
Go drive it May 22 2023, 08:21 PM r_towle I would stop adjusting now.
I would swap in new pl... May 22 2023, 08:28 PM malcolm2 Something could have gone wrong. The mechanic her... May 25 2023, 10:55 AM r_towle Congratulations.
remember...same (or less powered)... May 25 2023, 01:43 PM majkos1 hey guys,
Kevin here,
been lurking here ,working o... Aug 19 2023, 08:29 AM Superhawk996
experiencing constant backfire issues.
someon... Aug 19 2023, 12:42 PM majkos1 oh yeah,
his motor is a 2056 Aug 19 2023, 08:30 AM majkos1 yes, back firing through carbs. Aug 20 2023, 06:53 AM Superhawk996 Verify plug wires vs firing order.
Verify timin... Aug 20 2023, 07:00 AM technicalninja SuperHawk has good advice: :agree:
yes, back f... Aug 20 2023, 07:01 AM majkos1
SuperHawk has good advice: :agree:
yes, back ... Aug 20 2023, 07:10 AM  |
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