|
|
|
|
| Author |
|
|
Registered
Join Date: Mar 1999
Location: Vancouver,Wa.
Posts: 4,457
|
Wierdness
We're at the Wendover NT and #4 is not firing at idle. It wakes up at around 3k rpms. Make a run and we come back to the staging lanes on all 6.....idle is up 2-3 hundred rpms and shut it off. Fire it back up for the next run and the hole is dead again. Back to the lanes & it's back on 6. Get back home and a compression test on the hole shows over 200 psi like the rest (+/- 10).
Idle jet is clean, spark seems maybe a bit weak (MSD set-up) but visable spark...... Ideas? Oh..... 2nd of 13 in XP. 
__________________
JPIII Early Boxster |
||
05-18-2010, 07:46 PM
|
|
|
Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
|
JP,
Sounds like a piece of schmutz in an idle passage. I'd remove the idle jet, drain the float bowl, and blow air back & forth several times from the main jet passage and idle jet to dislodge it. In most cases you never see the offending crud.
__________________
Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
||
|
05-18-2010, 09:43 PM
|
|
