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Registered
Join Date: Aug 2012
Posts: 255
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Just before heading off to Goodwood FOS….
A few days before heading of to the great Goodwood FOS 911T 2.0 with weber 40IDA started running tough. Also dull popping in exhaust. Still running on all cilinders.
Today started her again, same story, rough through whole rev range. To see if there was one cilinder misbehaving I measured the temp of separate headers. 1-2-3 were significant cooler then 4-5-6. So carbs, right!? Strange though if it is fuel(delivery) why whole rev range. Going from idle jet to main jet….. Will pull carbs however all input is welcome! Thanks, Bart |
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06-18-2022, 01:06 AM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,427
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Pull the plugs first and clean the idle jets.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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06-18-2022, 10:29 AM
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Registered
Join Date: Aug 2012
Posts: 255
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thanks, will do those first!
(maybe bit to enthusiastic/disparate to pull carbs apart already) |
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06-18-2022, 12:39 PM
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Registered
Join Date: Aug 2012
Posts: 255
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Follow-up:
Pulled all 6 idle jets and as clean as possible, also all 4 fuel screens on bajonet bolts are fully clean! As said, bank 1-2-3 was while warmed up on exhaust tubes +/- 50 C cooler than side 4-5-6. Engine was running rough and dull popping. Started within 20 minutes drive.. Could it be shifted cam timing as it is a whole bank 😬 Any other suggestions? Regards, Bart |
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07-20-2022, 10:57 AM
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Now in Florida !
Join Date: Aug 2012
Location: York Beach, Maine and Anastasia Island, Florida
Posts: 406
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Worn throttle linkage for the carb on the 123 side?
Maybe check airflow side to side with a synchrometer.
__________________
1983 911SC Coupe Hot Rod - Platinum - Twin plugged 3.4, DC-60 cams, PMO 50's, 1 3/4 headers, Bill Rader 915 w/LSD 1976 914 2.0 Lime Green Metallic - Completely stock |
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07-20-2022, 03:58 PM
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