CDI Eval - Capacitor Discharge Ignition
08-14-2022, 07:20 PM
#1
Track Day
Thread Starter
CDI Eval - Capacitor Discharge Ignition
How fragile are the CDI units from 911T / 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 914World 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 911T / 914-6 engine topics, I never quite know whether to post them here or over on 914World board. I hope I'm not offending anyone by cross-posting.
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 914World 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 911T / 914-6 engine topics, I never quite know whether to post them here or over on 914World board. I hope I'm not offending anyone by cross-posting.
08-15-2022, 10:16 AM
#2
Team Owner
actually the best place to post is Pelican, not much technical expertise hear anymore compared to over there. ( no offense intended to members, but it is what it is )
08-15-2022, 12:20 PM
#3
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How fragile are the CDI units from 911T / 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 914World 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 911T / 914-6 engine topics, I never quite know whether to post them here or over on 914World board. I hope I'm not offending anyone by cross-posting.
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 914World 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 911T / 914-6 engine topics, I never quite know whether to post them here or over on 914World board. I hope I'm not offending anyone by cross-posting.
https://www.systemsc.com/products.htm
Note: The early Bosch CDI (3-pin) rarely fails unless the battery is over-charged, or reverse jumped.
__________________
Loren
Systems Consulting - Automotive Electronics
Specializing in Porsche cars
http://www.systemsc.com/
Loren
Systems Consulting - Automotive Electronics
Specializing in Porsche cars
http://www.systemsc.com/
Last edited by systemsc; 08-15-2022 at 01:23 PM.
