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CIS cold start popping
I've got the car out for its first run of the season.
There is a lot of popping going on when accelerating. Bad Gas? Running too rich? Broken head stud? - It should not be that as I the previous owner had replaced the head studs with 993 studs.
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Garage is empty Gone:96 TVR Chimaera, 05' Mazdaspeed MX5/89' Caterham Super Seven/84' Carrera/81' 911 SC targa/74' MGB |
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04-08-2006, 05:01 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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Probably running too lean, not too rich.
It was pretty cool this morning. Was your engine stone cold? Did the symptoms change as the engine warmed up? Have you checked your WUR/control pressures? A broken head stud was one cause of this condition in my car recently. I hope yours is just an out of spec WUR.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone Last edited by Paulporsche; 04-08-2006 at 07:00 PM.. |
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04-08-2006, 11:11 AM
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1984 Porsche 911 3.2
