CDI Eval - Capacitor Discharge Ignition |
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CDI Eval - Capacitor Discharge Ignition |
DennisV |
Aug 14 2022, 04:16 PM
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#1
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Senior Member Group: Members Posts: 533 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California |
How fragile are the CDI units from 914-6 engines? Is there a way for the DIY mechanic to evaluate them out of the car?
We don't know the history of the engine. I do know that it hasn't been in a car for over 10 years. We're going to start tearing the engine for a complete rebuild in a couple weeks, and now would be the time to do something with the CDI (among other things) if warranted. A forum member mentioned Ashlocktech does CDI restorations, but I will spend the $350 elsewhere it's not needed for this. Thanks for any experience you can share. P.S. For these 914-6 / 911T engine topics, I never quite know whether to post them here or over on a 911 board like Rennlist. Is it bad form to cross-post? (IMG:style_emoticons/default/confused24.gif) |
ClayPerrine |
Aug 15 2022, 09:25 AM
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#2
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Life's been good to me so far..... Group: Admin Posts: 15,820 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
The Bosch CDI boxes are notorious about failing without warning They have a problem with the solder joints from the power transistor breaking. When I had the 2.4 in my 914-6 conversion, I modified the CD mount bracket to hold two CD boxes. If the active one failed, I would be able to just plug in the other one and continue down the road. I keep a known good spare CD box in the factory six for the same reason. And just a shameless plug for my former employer... WWW.ALLZIM.COM rebulds Bosch CD boxes. Clay |
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