 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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| ArtechnikA |
Apr 5 2004, 08:28 PM
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(stock93 @ Apr 5 2004, 06:17 PM) ... even when not pumping the throttle the accelerator pump drips a stream of gas down into the throat... i had this with some 32 DCNF's... there was a bit of preload on the accel pump arms even at idle, and every little vibration squirted out a bit more gas (making the vibration worse...). i removed the accel pump actuator arms and ground in just a teeny bit of clearance, and it solved that problem. i had heard of it before, and sure enough, it happened to me. so check that you have a little clearance in the accel pump arm at idle. also (first, actually...) make sure that the throttle linkage is not preloaded at idle - that'll cause the same thing. disconnect all the linkages, check for clearance, and if there still isn's any, look to the accel pump arms. if there is some, your linkage has some preload, and you're not seeing 'real' idle... something to check ... |
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Posts in this topic
stock93 Weber problem Apr 5 2004, 08:17 PM
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 richardL I was just playing with my carbs for my 2056. They... Apr 13 2004, 09:24 PM 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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