924Board.org

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

To see what has been going on go to the "1980 Porsche 924 for sale (feeler)"
To continue:
I checked the voltage from the positive side of the coil to the ground side using a volt meter with the ignition on and it reads 5.3 volts then i had my friend crank itover and it jumped to 10.4 and then dropped to 4.6 and stayed there as long as he cranked. I still have not jumped the + side coil from the battery while he cranked. Thats for another day. Any ideas so far? It shocked me when he was cranking it over from the coil plug. I had the coil wire off of the coil. So its getting spark to the distributor as far as i can tell. One wierd thing is when i put the + test lead on the + side of the coil and - on - i get a - reading on my meter and when i put the + lead on the negative side and - lead on positive side i get a positive reading. I looked on the coil and made sure i was correct. That confused me. And if it matters my battery read 11.9 volts when before i started the tests. Those are my findings as of now. Thanks for all the help so far and keep the ideas coming.
Clay

Lizard · Posted: Wed Oct 06, 2004 4:44 pm Post subject:

ok well if you remove the Coil wire and hold it above a ground point and obsurve a spark happen while cranking, but you dont get any spark out of the leads which go to the spark plugs then the issue is either your leads. or your cap/rotor.
but if you are getting spark out of the coil lead then your coil is fine. as is the ICM unit
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3 928s,

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

So I did some tinkering yesterday. I tested the module for power. It is getting power. I tested the wires and coil wire. Plug wires have 10-11 ohms resistance Coil wire has 17 ohms. I tested to see the readings on the coil again. Still kinda borderline broken. The readings were close to the proper ones but if i remember right one was really high. It should have been about 1.3 or something like that and the coil read 2.4 volts. When i tested the coil for volts with the key on it read 6 volts. so i cranked it and it jumped to 10 and then to 4.4 volts. and then it jumped from 10-4.4 volts it shocked me pretty good. Not sure where the shock came from but some where near the coil. So i figutred i had power coming out the coil but when i tried to get the coil wire to jump i got no spark. So i thought the starter booster wire was bad so i ran a wire from the + battery to the +coil while it was being cranked. Still nothing. So i pulled the coil and am gonna have it checked. I looked at the pickups on the distributor also and one arm of the four is gapped quite large compared to the others. I tried sparkplug wire on the coil also and made no difference. I am getting voltage from the module as far as i can tell. I am thinking the coil is bad because of the lack of spark. I will deal with the distributor pickups later. So thats what i have found. Feedback is great. keep it coming. Does anyone have some spare igniton parts laying around that you know work properly that you may be interested in selling to help a guy to get a porsche running again? Thanks, Clay

numbbers · Posted: Fri Oct 08, 2004 10:40 am Post subject:

Hey coils are cheap. It would cost more to ship one, than to buy one.
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1980 924 Turbo

Lizard · Posted: Sun Oct 10, 2004 2:59 pm Post subject:

Clay, I do agree that it sounds very possible to be a bad coil, but if you find that the coil is bad, you will be better off buying a MSD ign either 6a or 6AL, but you will need to know that you will then have to run the fuel pump off of a switch.
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3 928s,

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

how hard is it to install a msd ignition? which is better a 6a or 6al? And where is a good place to get a good deal on a msd ingition? Is it possible to run the fuel pump of the ignition so when i turn on the key the pump runs? thanks, Clay

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

I was curious what the difference is between 0237003013 and 0237003018? I was looking up parts on www.carparts.com and was looking up reluctors and pickups and it asks for which ignition type i have. What is the difference between each? Thanks for the help. Clay

jpab924 · Posted: Tue Oct 12, 2004 11:56 am Post subject:

If you want to run a msd ign. Like Lizard said, you will have to bypass the fuel pump relay and run the fuel pump off a switch. Installation is pretty straight forward and easy to do.

Keep in mind, the rev limiter is built into your fuel pump relay. So there is a chance you could over-rev your engine with it by-passed.

Pm me if you are interested in one. I have one I can sell you for a good price. But you have to get a msd blaster coil to complete the set.

JP

jpab924 · Posted: Tue Oct 12, 2004 12:01 pm Post subject:

Don`t know what you are looking at with those part numbers.

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

I figured out what carparts.com was asking for. The numbers are what distiguish which distributor i have. I was gonna order some Standard Ignition parts. Anyways i orderd a Bosch coil, coil pickup, ignition wires, cap, rotor, and Standard Ignition reluctor. All in all i ordered 120 dollars in parts. I am gonna wait on the MSD for now. Kinda spendy unless I can get a good deal. So I am on hold til parts arrive. Thanks for all the helpso far. I'll be back when I get parts. Thanks, Clay

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

I found the oil level and coolant level is below the "ok" level and I was wondering if Porsche has a safety switch or something that wont let the car spark if the level is too low? Just a thought. Hit me back please. Thanks, Clay
P.S. Got my parts today gonna go play.

CMXXXI · Joined: 05 Nov 2002 Posts: 1939 Location: Vicksburg, MS

Nope, no such safety feature...

I'm "electrically challenged", sorry I can't provide any help with your problem. Sounds like maybe it's time to begin again and start with the basics?
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'79 Eurospec 931

wdb · Joined: 02 Nov 2002 Posts: 2024

http://www.google.com/search?hl=en&q=fluid+level+indicator

Lizard · Posted: Sat Oct 16, 2004 12:44 pm Post subject:

Jpab is correct the fuel pump will need to be put on a switch if you run the MSD system, which will disable your factory rev limiter, however if you purchase the MSD 6AL it has a built in rev limiter that is adjustable, so if you do the convertion and you dont know how to control your right foot on shifts then get the 6AL
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3 928s,

Clay · Joined: 30 Sep 2004 Posts: 10 Location: Northern Minnesota

So today I put in my coil and redid some wires that were corroded and broken. I found that the plug that goes to the distributor had conductivity no matter which way i put the leads from the ohm meter. So i decded the plug is bad so i made a new one. The pickup coil was ok in the distributor and i have yet to put in the disributor or the new wires because i am waiting for the relucotr that i ordered. Mine was all bent and way over gapped. so i will add more when i get my reluctor. Thanks guys. Clay