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Join Date: Aug 2010
Posts: 1
8-pin CDI Capacitor

Does anybody know what the capacitance value of the original charging capacitor in the 8-pin CDI (930 turbo '75 to'77, Bosch 0 227 300 003 ) is?
I measured the cap in my 35 year old unit and found a value of 0,996 F.
The 3 and 6-pin units have a 1,4 F / 400V cap installed.
Either the cap is deteriorated or the 8-pin version had only a 1F capacitor installed.

The car has very few ignition drop-outs at idle which increase at around 2500 RPM.The engine has been completely overhauled, ignition harness and plugs are new and the distributor was also overhauled.
The mystery is that it run perfectly at the first start-up after overhaul, then the car was parked for several days and at the next start i have noticed the ignition drop outs.
The complete ignition system has been checked again without any findings.
(Ignition harness resistance measured, plugs replaced, timing checked, wires from distributor to CDI and power and ground at CDI measured.)
There are only to things which left, the CDI unit and the ignition coil.

Any ideas?

Old 04-15-2012, 11:19 AM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 7,835
The coil for the unit is a Bosch, it is suposed to have a blue dot on it instead of being the 001 Bosch like the later turbos.
Old 04-15-2012, 11:43 AM
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sudo apt-get purge 930
equality72521's Avatar
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,840
If you can put up with him Lorenfb could probably answer your question.

Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL***

"Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing"
Old 04-15-2012, 02:06 PM
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