 carb guru needed |
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| ruddyboys |
 May 21 2004, 04:03 PM
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#1
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Hummel eigentümer  Group: Members Posts: 594 Joined: 3-March 04 From: Monroe, NY Member No.: 1,749 Region Association: North East States  |
I have dual webber 40 IDF, the carb was leaking through the accelerator pump diaphragm. After replacing it the carb over flows throug the top? I checked the needle valve and it moves freely and is attached to the floats. The floats also move freely. Could it be the floats need to be adjusted, if so how. (IMG:style_emoticons/default/pissoff.gif)
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| bperry |
May 21 2004, 04:23 PM
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#2
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Lurker Group: Members Posts: 477 Joined: 16-February 04 From: Dallas, Tx Member No.: 1,661 |
Floats might need to be adjusted or perhaps the needle valves
are shot, but how's your fuel pressure? If its too high it will overpower the floats and needle valve which would cause fuel to boil over from the middle of the carb. Make sure its not over 4 psi. I'd recommend buying the Weber Tech Manual by Bob Tomlinson from CB performance. Can't beat it, especially since its only $10. Has lots of good information about IDFs and how to rebuild them tune & troubleshoot them. I think it's better than the Weber Haynes manuals. http://www.cbperformance.com/catalog.asp?ProductID=4 --- bill |
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Posts in this topic
ruddyboys carb guru needed May 21 2004, 04:03 PM
94teener If the floats are properly set per Weber and the n... May 21 2004, 04:15 PM Rouser Adjust your float levels per diagram. You tweek t... May 21 2004, 04:25 PM lapuwali If BOTH carbs overflow, it's more likely to be... May 21 2004, 04:32 PM lapuwali The numbers in the chart, btw, are in mm. May 21 2004, 04:32 PM tat2dphreak ruddyboys I just rebuilt these and the kit came with a new n... May 21 2004, 04:37 PM
ArtechnikA ... May 21 2004, 06:02 PM |
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