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Registered
Join Date: Jan 2005
Location: cooperstown NY
Posts: 894
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cd box testing?
how do i test a 3 pin cd box to make sure its ok?
i bought it as a replacement. it came out of a "running car" on ebay. but you know how reliable that can be.
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bob 1972 E pos correction: expensive pos someday.... "shut up and drive!" |
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01-15-2008, 09:04 AM
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Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,522
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Let me be the first to suggest you do a search. Poster: Early_S_Man. Topic: CDI...
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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01-15-2008, 09:31 AM
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Location: cooperstown NY
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i did, and found fantastic schematics and comprehensive rebuilding instructions.
i also found extensive engineering discussions way over my head. i now recognize the valuable contributions warren made and what a great loss his death has been. pwd72s you could say that about every post here, its all been said before, probably 100 times. i frankly admit ,however, i'm a dope i need the "cd testing for dummies" version. is there a simple step by step description?
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bob 1972 E pos correction: expensive pos someday.... "shut up and drive!" |
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01-15-2008, 09:46 AM
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Location: Linn County, Oregon
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sorry it took me so long to respond. I have the impression that without sophisticated bench testing things like Warren had, about all you can do is plug it in the car & drive in order to "test". You might contact Loren at
http://www.systemsc.com/ And ask if he'd do a "test only" for a fee....
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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01-15-2008, 10:58 AM
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Location: cooperstown NY
Posts: 894
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thanks
anybody got a car to lend me? lol
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bob 1972 E pos correction: expensive pos someday.... "shut up and drive!" |
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01-15-2008, 12:36 PM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Bob,
Just connect +12v to the "B" terminal on the bottom and the battery ground to the "D" ground terminal on the case. You should hear a high-pitched whine, about 2Khz in pitch. That "whine" is the transformer used to step up the voltage from +12v to charge the capacitor. If you hear that, there's a decent chance it's working. To really test it, you would need to trigger it . . . but you should NOT try that as you will destroy it without the proper load. And don't connect a meter to the CDI, either! And if Warren (RIP) were here he'd say Do Not Touch the "A" terminal, or you will get a nasty 460 Volt shock!!!!! Good luck!
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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01-15-2008, 12:58 PM
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Registered
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Location: cooperstown NY
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thanks john
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bob 1972 E pos correction: expensive pos someday.... "shut up and drive!" |
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01-15-2008, 04:59 PM
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Join Date: Sep 2005
Location: South Surrey, BC
Posts: 4,536
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Would that method work on a 6 pin?
Lorne M. |
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01-16-2008, 10:16 AM
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