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 )

2 Pages V < 1 2  
Reply to this topicStart new topic
> The engine cuts out above 4,000 rpm when being pushed hard
emerygt350
post Sep 18 2025, 05:40 AM
Post #21


Advanced Member
****

Group: Members
Posts: 3,240
Joined: 20-July 21
From: Upstate, NY
Member No.: 25,740
Region Association: North East States



Interesting. Coils can go bad, it's just not that common. If he was checking the secondary (resistance from the little tabs to the bit in the middle and was only getting 9ohms rather than 9,000 that's not good. However, you said volts. Not sure if you meant that. That would be a different issue if you are only getting 9 volts to the coil.

Coils are cheap and easy. Get a pertronix flame thrower at your local auto parts store. I am not sure what your pertronix setup is looking for but I suspect 3ish ohms on the primary and a big number like 9k on the secondary will be fine.

Truthfully, any coil with values close to that will work, if the coil is your problem.

Pertronix Ignition Coil 40511 https://share.google/3owocyr2fXypi0TZC

Your setup might want a 1.5 ohm, not sure. Others with pertronix will know more than I. If it looks like an old Bosch that is in there, you want the 3 ohms version I posted. You can certainly buy a new Bosch, but I don't find their quality to be any different than the pertronix these days.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
mate914
post Sep 18 2025, 06:48 AM
Post #22


Matt
***

Group: Members
Posts: 895
Joined: 27-February 09
From: Eagles mere, PA
Member No.: 10,102
Region Association: North East States



Take the coil off of Bob's car and try it. He is not using it... (IMG:style_emoticons/default/popcorn[1].gif)
Matt

QUOTE(shag @ Sep 17 2025, 09:46 PM) *

Gentlemen, Well what a day. Bob Hill came this morning at 8AM and we took the 914 for a spin and it ran great. So we just took care of minor things like the missing nuts from the exhaust headers etc. So we went for a little ride to the auto parts and the car started missing again. Then it got worse. So we into it. The Pretronox ( found out that is what type it is GregAmy ) distributer was pulled and Bob took it apart, I mean all apart. Oiled the main shaft like you said to GregAmy and soldered a broken wire that seemed to me to keep everything grounded. I cleaned everything up while Bob took care of the technical stuff. He then put it all back together quite well. We installed it and tried starting it. It began to run, roughly, we decided to use the timing light to finish the job and that is when it happened. It just wouldn't start again. We tried everything. Finally Bob measured the voltage and it was something like 9 volts? I think it was suppose to be in the thousands. Nevertheless I thought I would just buy a new one. I talked to at least 2 different auto parts stores and they don't carry them and have no idea where I can purchase one. Does anyone know where I can purchase a coil for a 1973 2.0 4cylinder with stock fuel injection and receive it in a day? Or does anyone know a parts store near York/Harrisburg PA that carries one? I am going to check the web pages of the sellers for 914's that I am aware of. By the way what would make the coil go bad at that time?

User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V < 1 2
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 September 2025 - 12:22 PM
...