 Weber Jet Sizes?, Is there a "ballpark" starting point? |
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| Porsche Rescue |
 Jul 4 2003, 01:48 PM
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Saving and Enjoying Old Porsches  Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None  |
Can someone tell me the proper jet/emulsion tube sizes for Weber 40's on a near stock 2.0 (has "carb" cam but don't know specs)? So far I have only checked the idle jets and they are 45's. The engine runs OK but I think it could be better. There is a bit of a stumble at slack throttle around 3000 rpm. I think that is about the point of transition from idle circuit to main circuit. Any suggestions out there?
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| rhodyguy |
Jul 5 2003, 07:30 AM
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,081 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
jim, this can be exhausting. go to www.germanlookfurums and/or www.shoptalkforums, type4rum. do a search for "weber jetting", there will be plently of info. look for replies from jake raby in particular. any more severe symtoms, sneezing (back through the carb at idle)? poping out the back on decel? examine the a/f mix screws and ensure that they haven't been ringed/ grooved do to heavy handed turn in. look locally, you may need to find a shop to determine the a/f mixture with a sniff test. sounds like you are pretty close. it aint f.i. don't you like the way they sound at full throttle? maf is right though, hows the timing at 3 grand. here comes the mallory. this is one reason the 009 and 050 are less than the prefered dist.
kevin |
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Posts in this topic
Porsche Rescue Weber Jet Sizes? Jul 4 2003, 01:48 PM
krk Jim,
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