Coil Querie |
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Coil Querie |
kenshapiro2002 |
Aug 17 2009, 01:03 PM
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#1
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Senior Member Group: Members Posts: 1,441 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
In my ongoing quest to "fix"everything possible before I start rebuilding my webers, I figured I'd check out my coil today. I read an online article that said it's better checked out of the car, than in, and gave instructions that have me needing the resistance specs (which Haynes doesn't list).
Then, I started wondering why there was a spare (used) coil in the trunk. The Bosch coil currently in the car has two numbers on it. They are: 0 221 102 076 0 222 905 115 The spare coil lying in the trunk is: 0 221 119 009 Any insight here is appreciated as always...don't know what I'd do without y'all! |
Cap'n Krusty |
Aug 17 2009, 02:37 PM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
If it fits a 928, don't use it. It's made for Bosch electronic ignition, not points or aftermarket point replacement. The Cap'n
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kenshapiro2002 |
Aug 17 2009, 03:35 PM
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#3
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Senior Member Group: Members Posts: 1,441 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
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neil30076 |
Aug 17 2009, 04:29 PM
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#4
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Recovering dismantler! Group: Members Posts: 397 Joined: 12-September 06 From: San Diego ( RB) CA Member No.: 6,826 Region Association: Southwest Region |
Thanks. Any idea where to find resistance specs on the stock coil? If it fits a 928, don't use it. It's made for Bosch electronic ignition, not points or aftermarket point replacement. The Cap'n Between 1 and 15 - 3.4ohm between 1 or 15 and center 6.8kohm, hence 2000 : 1 ratio, 12v in, 24,000 volts out - and stay away from the 928 coil - that puts out around 50k - at least in my 928!!! |
kenshapiro2002 |
Aug 17 2009, 04:38 PM
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#5
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Senior Member Group: Members Posts: 1,441 Joined: 23-July 09 From: Bawlmer, MD Member No.: 10,598 Region Association: MidAtlantic Region |
Are you saying 3.4 ohm for the primary coil (between the two male posts), and 6.8k ohm for the secondary coil (between the center and the male plug)?
Thanks. Any idea where to find resistance specs on the stock coil? If it fits a 928, don't use it. It's made for Bosch electronic ignition, not points or aftermarket point replacement. The Cap'n Between 1 and 15 - 3.4ohm between 1 or 15 and center 6.8kohm, hence 2000 : 1 ratio, 12v in, 24,000 volts out - and stay away from the 928 coil - that puts out around 50k - at least in my 928!!! |
neil30076 |
Aug 17 2009, 04:46 PM
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#6
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Recovering dismantler! Group: Members Posts: 397 Joined: 12-September 06 From: San Diego ( RB) CA Member No.: 6,826 Region Association: Southwest Region |
Are you saying 3.4 ohm for the primary coil (between the two male posts), and 6.8k ohm for the secondary coil (between the center and the male plug)? exactly - Between 1 and 15 ( male posts) - 3.4ohm between either post and center 6.8kohm, hence 2000 : 1 ratio, 12v in, 24,000 volts out - and stay away from the 928 coil - that puts out around 50k - at least in my 928!!! |
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