Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> sorting thru some issues and decided to start with cap and rotor, ** updated to 11/20 - 3 issues causing 3 overlapping problems- resolved
DRPHIL914
post Oct 17 2014, 04:50 PM
Post #1


Dr. Phil
*****

Group: Members
Posts: 5,766
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



I have not seen scratches like this before in a cap.; bad rotor?

- see the last post-
1 bad CHT
2. bad TPS
3. bad f.i. injector trigger points plate.

NOT MPS,
NOT cap, rotor(although i did replace these too)


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
DRPHIL914
post Oct 29 2014, 07:39 AM
Post #2


Dr. Phil
*****

Group: Members
Posts: 5,766
Joined: 9-December 09
From: Bluffton, SC
Member No.: 11,106
Region Association: South East States



so since i last posted about this, i have tried a couple things. replaced that TPS and that made a huge difference in running down the road, and might have effected the idle in a positive way, but i replaced the CHT with a brand new one, then started it up and once warmed up to temp i began adjusting the part load on the MPS because it was running way too lean, and i believe that was much of the idle issue , so it ran great on saturday for a half hour trip - (also put a new coil in )
parked the car and the is what happened this morning: (also posted to the "what did you do to your 914 today" thread):


i TRIED to drive it today but (IMG:style_emoticons/default/headbang.gif) it didnt want to start, partly because i think the battery is getting weak, but it usually cranks up on first turn, but it was like it was missing or not firing on all 4, like if i had bad points but i have hotspark module-
Saturday it ran fine, after putting in new coil, drove for 15 miles for test drive, ran perfect, came home, idled in driveway for a few minutes while i was monitoring temp and checking A/F readings, then parked it. That was just 4 days ago, so (IMG:style_emoticons/default/confused24.gif) . almost started, was very rough, died, then would not get going.
didnt have time so i gave up and drove the other car to work. (IMG:style_emoticons/default/sad.gif)

i'll re-check grounds tonight and maybe switch out the points module and/or FI points and see if that makes a difference- but if feels like a spark/electric issue not fuel.
(IMG:style_emoticons/default/hissyfit.gif)

so im not sure what i am missing- just does not make sense
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
Philip W.   sorting thru some issues and decided to start with cap and rotor   Oct 17 2014, 04:50 PM
fixer34   What's the rotor look like? The scratches are...   Oct 17 2014, 05:09 PM
bdstone914   did you ever turn over the engine with the cap loo...   Oct 17 2014, 05:15 PM
Philip W.   did you ever turn over the engine with the cap lo...   Oct 17 2014, 06:07 PM
bdstone914   did you ever turn over the engine with the cap l...   Oct 17 2014, 08:33 PM
Philip W.   [quote name='Philip W.' post='2099214' date='Oct ...   Oct 17 2014, 08:39 PM
Jon H.   Mine would do that at stop lights etc, and I adju...   Oct 18 2014, 06:13 AM
Philip W.   so since i last posted about this, i have tried a ...   Oct 29 2014, 07:39 AM
r_towle   So, a stock motor should not need any adjustment o...   Oct 29 2014, 08:17 AM
Philip W.   So, a stock motor should not need any adjustment ...   Oct 29 2014, 09:06 AM
Philip W.   It appears it was the mps! Put the unmolested ...   Oct 29 2014, 05:14 PM
r_towle   This pic is at idle. It's a special circuit fo...   Oct 29 2014, 06:14 PM
Philip W.   This pic is at idle. It's a special circuit f...   Oct 30 2014, 06:28 AM
boxsterfan   See if you can borrow someone's MPS.   Oct 30 2014, 06:33 AM
Philip W.   See if you can borrow someone's MPS. i was t...   Oct 30 2014, 06:44 AM
dknechtly   How's the resistance at the trigger points? I...   Oct 30 2014, 06:57 AM
Philip W.   How's the resistance at the trigger points? ...   Oct 30 2014, 07:28 AM
Java2570   Trigger points are a module screwed into the base ...   Oct 30 2014, 07:37 AM
Philip W.   Trigger points are a module screwed into the base...   Oct 30 2014, 07:49 AM
Philip W.   I did not pull the distributor and look at the f.i...   Oct 30 2014, 10:11 PM
Philip W.   after verifying and checking MPS , resetting the T...   Nov 21 2014, 01:39 PM
dknechtly   Fantastic you got it fixed. The points need to ha...   Nov 21 2014, 04:16 PM
Philip W.   Fantastic you got it fixed. The points need to h...   Nov 22 2014, 09:29 AM
orangecrate   There's a lot of smart people on this board. S...   Nov 21 2014, 02:43 PM
Philip W.   There's a lot of smart people on this board. ...   Nov 22 2014, 09:31 AM
Dave_Darling   There's a lot of smart people on this board. ...   Nov 23 2014, 05:12 PM
fixer34   So back to the original post. Did you ever figure ...   Nov 22 2014, 11:33 AM
Philip W.   So back to the original post. Did you ever figure...   Nov 22 2014, 08:54 PM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 18th May 2024 - 07:19 PM