Hi All,
After some advice/help.
I have a 1981 911 SC (ROW)
After a breakdown & flatbed truck home my 911SC refused to start.
Long story short, Nil Spark, replaced Coil (MSD), Distributor cap, Leads, Spark plugs, Checked Green wire, new Fuel filter & Accumulator etc but problem came down to CDI.
Following the below thread...
https://forums.pelicanparts.com/porsche-911-technical-forum/203100-6-pin-sc-turbo-cdi-unit-repair-documentation.html
I repaired the CDI with a new C8 capacitor, SCR.
The car started & ran perfectly for approx 30-40min then shutdown, no cough, hesitation or splutter, just an abrupt stop. Car started straight away, ran for 20-30 sec then same shutdown. Subsequent starts perfect, but with same shutdown after 20-30sec.
Allowed car to cool down for 20-30min then car started & ran again for 20 min then same abrupt shutdown.
Has anyone had this defect?
I have noticed the CDI does get extremely hot, but i'm not sure if this is a normal condition?
It seems to be a hard signal shutdown, either from CDI (spark)?? or fuel shutdown?
I have read further articles with regards to WUR, CDI "Lock up", oxygen sensor etc.
Just curious to hear from people what their experience is with this type of "hard" shutdown & their thoughts/repairs, or any articles/forums they could point out.
Thanks.
911SC 1981 ROW