|
|
|
|
| Author |
|
|
Jupiter 911
Join Date: Sep 2007
Location: Jupiter Fl
Posts: 663
|
Acceleration pop question.
Recently, upon giving the engine any revs the engine will pop. Not loud like a back fire but noticeable, it only happens when not in gear. I have replaced wires,rotor,cap,plugs and rechecked them all. Any ideas? thanks
__________________
Lenny-1987 3.2 Targa Guards Red/SW Chip Fabspeed Exhaust/Cat bypass MSDS Inc. intake/Clewetts Euro pistons and cylinders. 2002 Boxster Artic Silver/Wifes ride. |
||
03-19-2010, 07:33 AM
|
|
|
muck-raker
Join Date: Jan 2009
Location: Coastal PNW
Posts: 3,059
|
Does it "pop" during acceleration, or after your foot is off the gas?
I can think of 3 possibilities: 1) running rich, 2) exhaust leak, or 3) possible broken head stud(s). Hopefully, it won't be Bachelor #3.
__________________
STONE '88 Cabriolet, using EP Slick 20w50 partial synthetic Snake Oil...just as Rommel intended.  Deny Everything; Admit Nothing; and Always Make Counter-accusations 
|
||
|
03-19-2010, 03:13 PM
|
|
|
Registered
|
I'd look at a vacuum leak-intake maybe.
__________________
Ed Hughes 2015 981 Cayman GTS 6 speed,Racing Yellow Past:1984 911 Targa (Ruby), 1995 993C2 (Sapphire), 1991 928S4 |
||
|
03-19-2010, 06:00 PM
|
|
|
Jupiter 911
Join Date: Sep 2007
Location: Jupiter Fl
Posts: 663
|
The pop will happen after my foot comes off the accelerator, I also hope it is not a head stud. The engine had a complete rebuild (including studs) approx. 22k ago.
__________________
Lenny-1987 3.2 Targa Guards Red/SW Chip Fabspeed Exhaust/Cat bypass MSDS Inc. intake/Clewetts Euro pistons and cylinders. 2002 Boxster Artic Silver/Wifes ride. |
||
|
03-23-2010, 07:44 AM
|
|
|
Registered
|
Quote:
__________________
1970 911 T Targa |
||
|
03-23-2010, 11:29 AM
|
|
|
muck-raker
Join Date: Jan 2009
Location: Coastal PNW
Posts: 3,059
|
from the description of your symptoms, I would recommend checking for vacuum leak first. If that checks out OK, then I would move to checking my air/fuel mix.
__________________
STONE '88 Cabriolet, using EP Slick 20w50 partial synthetic Snake Oil...just as Rommel intended. Deny Everything; Admit Nothing; and Always Make Counter-accusations
|
||
|
03-23-2010, 02:24 PM
|
|
|
|
Jupiter 911
Join Date: Sep 2007
Location: Jupiter Fl
Posts: 663
|
Looked for a vacuum leak but had no luck, so I decided to remove my much loved SW chip just as a hunch when kidrock mentioned air/fuel mixture and replaced it with the oem. Went for a 20 min. drive and so far so good. Was this the problem? what to you guys think?
__________________
Lenny-1987 3.2 Targa Guards Red/SW Chip Fabspeed Exhaust/Cat bypass MSDS Inc. intake/Clewetts Euro pistons and cylinders. 2002 Boxster Artic Silver/Wifes ride. |
||
|
03-23-2010, 03:37 PM
|
|
|
Registered
|
Call Steve; that seems like the best route.
|
||
|
03-23-2010, 05:33 PM
|
|
1984 Porsche 911 Targa 3.4L
Sapphire
