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Join Date: Jan 2000
Location: Fayetteville Ar
Posts: 237
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No Start No Fire
76 911 2.7...I had spark but then lost it. It had a Permatronic ign. I put in point thinking I fried the module. CD box hums but still no spark. Is there a way to check the coil? Should the + terminal be hot? It is not. I checked the ground strap and it is in good shape. Thanks for your time Paul
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Paul Williams |
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07-29-2006, 04:43 PM
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Anybody?
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Paul Williams |
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07-29-2006, 07:17 PM
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coil
you can check the coil with a volt ohm meter,,,do a search on this site for the post....470 ohm?
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1975 911S Targa Silver Anniversary Edition |
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07-29-2006, 07:28 PM
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Location: TX USA
Posts: 9,804
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Paul,
Here are some threads with CDI info you may want to read and print out: Perma-tune CD or Bosch CD? Ignition Troubleshooting?????? History of Bosch CDI ... toubleshooting info, parts list changes, and schematics ... I suggest a 'Telegraph Key' test with a grounded new spark plug as the load plugged directly into the coil. Remove the Black and Black/Violet wires from the distributor terminal ... and repeatedly touch to ground and remove ... a spark should be generated each time the Black wire is ungrounded. If the test works, there is a problem with your points. It is wise to carry a spare set of new or known-good points with any Pertronix-equipped distributor, as you will never know when the Pertronix will fail! Is your coil leaking or oozing goo or oil? Thje primary should measure 0.4 - 0.6 Ohms, and the secondary 650 -790 Ohms ... assuming OEM Bosch 0.221.121.001 or 0.221.121.006 coil. Not all digital multimeters can measure accurately below one Ohm ... some will show '0' ... but that does not necessarily mean the primary is shorted! The usual failure mode for a CDI coil is a partly-shorted secondary showing lower than normal resistance. Good luck!
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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07-30-2006, 05:41 AM
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Thanks to all that replied! I found the problem, the rubber in the plug that goes through the distritor had worn and was letting the points ground out to the distribitor. Thanks for all the great information,
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Paul Williams |
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07-31-2006, 03:27 AM
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Location: Concord, NC.
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Is there any particular reason you have not junked the points system yet and upgraded your igniton system. You would probably be cutting alot of future headaches out of your life if you were to do so.........just asking?
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83SC black on black 01 Chevy S10 08 Buick Enclave |
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07-31-2006, 03:58 AM
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I agree, it had a Permatronic ignition but I fried it somehow. I had point in the garage and decide to use them until I ordered another Permatronic unit.
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Paul Williams |
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07-31-2006, 04:46 AM
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I run a MSD and it kicks ass I am so glad I did the upgrade to the MSD
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83SC black on black 01 Chevy S10 08 Buick Enclave |
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07-31-2006, 05:03 AM
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