 spark plug gap closed on two plugs, what causes this? |
|
|
|
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. |
|
|
| siverson |
 Jun 13 2016, 09:23 PM
Post
#1
|
|
Advanced Member  Group: Benefactors Posts: 2,451 Joined: 5-May 03 From: San Diego, CA Member No.: 654 Region Association: Southern California 
 |
hi - quick question from the garage. cdi box died on my six. got replacement and car starts right up (good). but runs like crapola right away. pulled the plugs and on two the electrode (term?) is no touching the plug.
is this why my cdi boxed died? or is this a result of it dying? or? plugs were 1k miles old. cdi box was 46 years old. |
   |
 
|
  |
Replies
| Frankvw |
Jun 14 2016, 10:36 AM
Post
#2
|
|
working on my first 914 ! Group: Members Posts: 653 Joined: 13-April 16 From: Holland, the Netherlands Member No.: 19,896 Region Association: Europe |
Mmmmm interesting topic.
but to be honest...I am really lost about: " missed shift or too much rpm causes things to kiss" That is new to me and never heard/read this before. the sparkplug is fixed location and the piston cannot go more up then tdc, right ?? So...also not when revving or shifting... is there something wrong with my logic in this ?? |
|
|
|
| brant |
Jun 14 2016, 10:40 AM
Post
#3
|
|
914 Wizard Group: Members Posts: 11,824 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
|
QUOTE(Frankvw @ Jun 14 2016, 10:36 AM)  Mmmmm interesting topic. but to be honest...I am really lost about: " missed shift or too much rpm causes things to kiss" That is new to me and never heard/read this before. the sparkplug is fixed location and the piston cannot go more up then tdc, right ?? So...also not when revving or shifting... is there something wrong with my logic in this ?? it happens its happened to me and many others |
|
|
|
Posts in this topic
siverson spark plug gap closed on two plugs Jun 13 2016, 09:23 PM
siverson 914 Jun 13 2016, 09:24 PM siverson 914 Jun 13 2016, 09:25 PM stugray Cyl touching? (Does it have High CR pistons? does ... Jun 13 2016, 09:40 PM nine9three The only thing I know that would cause this would ... Jun 13 2016, 09:42 PM veekry9 (Pelican Pix)
They can look as bad as this before... Jun 13 2016, 10:34 PM
nine9three
Carbon buildup on the pistons are usually the cu... Jun 14 2016, 10:12 AM brant You missed a shift or most likely over revved it o... Jun 13 2016, 11:07 PM r_towle I'm very unclear on how a mis shift or over re... Jun 14 2016, 09:00 AM brant on a -6 with high compression and high lift cams t... Jun 14 2016, 09:24 AM r_towle
on a -6 with high compression and high lift cams ... Jun 14 2016, 01:08 PM Luke M I would check to make sure those are the proper pl... Jun 14 2016, 09:33 AM siverson Interesting, thanks for the feedback.
I don't... Jun 14 2016, 12:16 PM brant
Interesting, thanks for the feedback.
I don... Jun 14 2016, 12:24 PM siverson New plugs.
-Steve Jun 14 2016, 12:18 PM siverson In there now.
-Steve Jun 14 2016, 12:19 PM stugray Engine parts DO flex.
The greatest stress in an en... Jun 14 2016, 01:04 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 27th December 2024 - 01:20 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.