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DuckRyder's Avatar
 
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Porsche Crest Ignition questions (coil, distributor parts numbers.)

Well today was fun.

I finally got the car to at least act like it was going to start, albeit using Carburetor cleaner.

First problem, pulled the distributor to facilitate changing the points and condenser. (PITA) noted a broken wire inside the distributor connecting the advance plate to the distributor main plate (ground path) Figured no problem, pull the distributor out of the other motor. Noted the only 2 differences (after trying to install it) that the drive lug is situated such that it is 180 degrees off of the other one, and that the advance can is non adjustable.

the numbers are

039 905 205
&
039 905 205A

0 231 174 009
&
0 231 174 011

Both have JFUDX4 and an <---

Any one know the story on that? Are they supposed to time 180 degrees apart?

Any way I repaired the wire and reinstalled the non "A" distributor and was able to get the car to fire on carburetor cleaner. It has fuel pressure all the way back to the injectors. It has injector pulse and it has fire, so I figure it is basically a matter of getting it all at the right time.

one other question,

The coil wiring harness has 2 wires one is keyed battery + the other appears to do nothing. Car has fire whether it is unplugged or not.

I have the B+ wire on terminal 15 and the points wire and the other wire on terminal 1 which is the way it came apart. Is this correct and if so what is the other wire for?

Oh yeah, if you read this far, please check out

"96mm pistons in this motor good/bad"

and

"paging TypeIV head experts"
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Last edited by DuckRyder; 12-29-2002 at 02:17 PM..
Old 12-29-2002, 01:59 PM
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Well it is possible to get the distibutor 180 out I did it and yup doesn't quite wanna run. Sorry my boy took his car to the mall so I can't go look at the coil wires.
Old 12-29-2002, 03:37 PM
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The other wire (black w/purple) is for the tach.
Geoff
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Old 12-29-2002, 04:03 PM
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Quote:
Originally posted by Bleyseng
The other wire (black w/purple) is for the tach.
Geoff
Ahhh, I see said the blind man!
Old 12-29-2002, 04:08 PM
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All of the dizzy p/n's are on my parts web page.

The 205 dizzy is for the '73 2.0L. The 205A is for the '74-'76 2.0L. The differ slightly in mechanical advance onset, and in the degree and onset points of vacuum advance and retard. For the most part, they are interchangable.

I've never heard anything about the drive lugs being 180 degrees flipped. Is it possible that one was rebuilt and the rebuilder accidentally flipped the drive?
Old 12-30-2002, 08:01 AM
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I wasn't able to locate the "parts web page"? I assume the 205 is better for performance?

I'm going on the assumption that the 205A distributor was messed with at some point. If one failed to mark it and removed the drive dog, it would be pretty easy to reverse it. I don't belive the other motor has ever been into.

Hope this makes sense with all the starting fluid.

EDIT: Nevermind, found it.
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Last edited by DuckRyder; 12-30-2002 at 05:01 PM..
Old 12-30-2002, 03:07 PM
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