Dual Carbs, Idle |
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Dual Carbs, Idle |
cpavlenko |
Aug 7 2020, 10:29 PM
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#1
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Member Group: Members Posts: 489 Joined: 19-April 12 From: North Arizona Member No.: 14,400 Region Association: Southwest Region |
Starts right up with good idle, but after a good drive when stopping for red light, it wants to start dying and drops idle real low. Like 500 or less rpm. My idle on the Weber 40's when cold is about 1200 rpm and and smooth. Any thoughts out there. 1.7 built to a 2.2. Engine has almost 600 miles since build. Other than this problem, it runs great. Oh oil temp after good run bout 210 to 220 degrees in 95 degree weather.
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nditiz1 |
Aug 7 2020, 10:51 PM
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#2
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Senior Member Group: Members Posts: 1,190 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region |
That could be your problem if they are not in good shape and setup correctly.
As the engine bay heats up it will expand the parts. Usually this would make the idle faster, but i have also seen it the other way. See if when it starts to do it you can feather it and pop off the linkage. This will tell you if it is the linkage. When you do get to a stop and it wants to die does reving it bring it back to 1200 or only driving? Could also be float levels are they set properly with the gasket. Could be the heat is affecting the fuel pump if it is old or worn out. Start with the linkage and we can go from there. |
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