 Carbs or Ing Sys, Intermittent miss-fire |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Razorbobsr |
 Mar 14 2011, 11:26 AM
Post
#1
|
|
Member  Group: Members Posts: 282 Joined: 6-June 10 From: Terre Haute Ind Member No.: 11,813 Region Association: Upper MidWest  |
As you guys said, cleaned jets in carb, replaced plugs and wires, smooth at 900 rpms in drive, smooth at 2/3/4 K rpms in driveway, pulls hard W/O, sill I have a miss-fire that I can feel coming and going[surging, sound of engine when all 4 hit at proper times] Could I have a coil prob? Or where off to next?? 2L/carbs/5K sense rebuild/1500 miles driven to get this car home..... NKG plugs but do have Bosh plugs waiting...... Getting warmer outside, Help! Bob PS, British car friends are starting to make fun of the 914........... AND ME
|
   |
 
|
  |
Replies
| indianmort |
Mar 15 2011, 08:23 AM
Post
#2
|
|
Newbie Group: Members Posts: 14 Joined: 2-August 10 From: sugarloaf ny Member No.: 12,004 Region Association: None |
if the misfire develops after the car has warmed up, it could be the coil. when cold it could run fine, as the coil heats up, it expands. if there is a failure in the windings as it expands the wires separate and the coil breaks down.
|
|
|
|
| Razorbobsr |
Mar 15 2011, 11:39 AM
Post
#3
|
|
Member Group: Members Posts: 282 Joined: 6-June 10 From: Terre Haute Ind Member No.: 11,813 Region Association: Upper MidWest |
QUOTE(indianmort @ Mar 15 2011, 10:23 AM)  if the misfire develops after the car has warmed up, it could be the coil. when cold it could run fine, as the coil heats up, it expands. if there is a failure in the windings as it expands the wires separate and the coil breaks down. When you say, breaks down........ Just how would that sound/feel. The spark at idle is blue and strong, jumps 3/4 of an inch. Bob |
|
|
|
Posts in this topic
Razorbobsr Carbs or Ing Sys Mar 14 2011, 11:26 AM
Vacca Rabite Where in the rpm range is it missing? Is it missi... Mar 14 2011, 04:10 PM
Razorbobsr
Where in the rpm range is it missing? Is it miss... Mar 14 2011, 04:58 PM Vacca Rabite Can you get it to miss sitting in your driveway? ... Mar 14 2011, 07:31 PM Razorbobsr
Can you get it to miss sitting in your driveway? ... Mar 14 2011, 09:04 PM Vacca Rabite Coils usually either work or don't work. I... Mar 15 2011, 08:04 AM Razorbobsr
Coils usually either work or don't work. I... Mar 15 2011, 10:34 AM Razorbobsr
Coils usually either work or don't work. I... Mar 16 2011, 08:57 AM Borderline How did you synch the carbs/linkage? I have found... Mar 15 2011, 10:24 AM Razorbobsr
How did you synch the carbs/linkage? I have foun... Mar 15 2011, 11:36 AM McMark 009 Dizzy is garbage. As Dave Darling loves to sa... Mar 15 2011, 11:42 AM Razorbobsr
009 Dizzy is garbage. As Dave Darling loves to s... Mar 15 2011, 01:37 PM McMark Normally I retype all this info. But there is so ... Mar 15 2011, 02:33 PM Razorbobsr
Normally I retype all this info. But there is so... Mar 16 2011, 06:18 AM Vacca Rabite Always adjust carbs when they are fully warmed up.... Mar 16 2011, 09:30 AM Razorbobsr
Always adjust carbs when they are fully warmed up... Mar 16 2011, 02:42 PM McMark
Zach, you're confusing two screws here. The ... Mar 16 2011, 11:24 AM Vacca Rabite
Zach, you're confusing two screws here. The... Mar 16 2011, 07:34 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 7th July 2025 - 01:43 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.