 Weber problem |
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| stock93 |
 Apr 5 2004, 08:17 PM
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Member  Group: Members Posts: 333 Joined: 12-May 03 From: Huntsville, AL Member No.: 684 Region Association: South East States  |
I have a 2.0 type IV engine with 44idfs on it. I was going to sync the carbs today and noticed that even when not pumping the throttle the accelerator pump drips a stream of gas down into the throat of the carb enough that its pooling up a bit on the throttle plate. I'm getting popping back through the carbs. Timing is spot on and the valves are correctly adjusted. I take it this is a problem and they arent supposted to do this? It also smells like its still running to rich. I have 135 mains, 200 airs, 55 idles, 36mm vents, and no velocity stacks currently. Mixture screws are set 1.5 turns out. Its also hesitating from idle to around 3K rpm if I step on it hard like its flooding out. Time to put kits in the carbs? Does the jetting for the accelerator pump need to be changed or adjusted?
John |
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| richardL |
Apr 13 2004, 09:24 PM
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Senior Member Group: Members Posts: 713 Joined: 27-January 03 From: San Diego, CA Member No.: 201 Region Association: None |
I was just playing with my carbs for my 2056. They were rebuilt not too long ago but the car melted #1 piston at Willows so I was trying to check things out. (thats why I got a deal on the car (IMG:style_emoticons/default/wink.gif) )
The jettings (40IDFs) are 130Main/160Air/50 idle/32 Venturi/F11 emulsion - does the Air sound a little small? Anyhow, I dismantled the top end and it was pretty clean and everything looked good. I tipped it upside down to remove a little dirt at the bottom of the float bowls and out floated a 2mm X 1.5mm sliver of metal from the emulsion tube hole of #1 (I'm pretty sure thats where it came from)! So, would a large piece of foreign matter blocking the main jets cause an instant leaning out and hence a melted piston? Or wouldn't that explain the problem? Hoping that its the smoking gun I'm looking for... Richard |
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Posts in this topic
stock93 Weber problem Apr 5 2004, 08:17 PM
ArtechnikA Racer Chris It is highly possible that the screw which holds t... Apr 5 2004, 10:04 PM 914ghost Does it drip while idling or with the engine off?
... Apr 5 2004, 10:10 PM Brad Roberts I have the SAME F-ing problem on a customers car r... Apr 5 2004, 11:49 PM stock93 Thanks brad. Its always comforting to know I'm... Apr 6 2004, 01:36 AM Racer Chris Brett W Welding the carb top will not be fun. Those casti... Apr 6 2004, 09:58 AM apoplexy "I have the SAME F-ing problem on a customers car ... Apr 6 2004, 02:12 PM RoadGlue Brad,
What does the exhaust gas analyzer show bel... Apr 6 2004, 11:33 PM Brad Roberts This is a tough issue with her car. I found two GR... Apr 7 2004, 01:07 AM apoplexy <... Apr 8 2004, 11:48 PM apoplexy Brad Roberts Anything over Idle on that hole would be lean if a... Apr 13 2004, 09:42 PM J P Stein I realize that this is a bit of apples and oranges... Apr 14 2004, 03:06 AM lapuwali I'm running 55 idles in 40IDFs with 28 vents o... Apr 14 2004, 09:11 AM
blabla914 I just went through the same thing on a T4 convers... Apr 14 2004, 10:01 AM |
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