Mallory failure, Optical sensor Options

[jeffdon]

Looks like I fried the optical sensor in my Mallory. Did some timing work, shut it down, then went out a few hours later to go for a drive. No spark. Put my old 009 with pertronix back in and its running.

Questions -

1) I have a bosch blue coil, and its measuring 3 ohms pos to neg, and 8k coil wire to either neg or pos. This seems a little low. Could it have been the cuplrit in killing my dizzy?

2) From what I have read, the blue coil has an internal resistor. Would adding a ballast resistor provide additional protection to the Mallory(once fixed) or would it just run like crap?

[gothspeed]

here is some info from msd, I am sure they are promoting their product, but there is probably some truth in their info as well.

http://www.msdignition.com/uploadedFiles/M..._vs_optical.pdf

[Jake Raby]

here is some info from msd, I am sure they are promoting their product, but there is probably some truth in their info as well.

http://www.msdignition.com/uploadedFiles/M..._vs_optical.pdf

I have over 800 Mallory Uni-Lite equipped engines all over the planet. Of those I can count the failures of the optical pick up that have made their way back to me on one hand.

That includes running from Amsterdam to Beijing and from the northernmost tip of Africa all the way to the southernmost cape, mostly on dirt roads. Both those treks were with the same engine and the same dizzy, with no issues. Thats in a Type 4 application, as well.

Unless some variable imposes a collateral condition I don't believe the optical unit will fail.

[gothspeed]

I have over 800 Mallory Uni-Lite equipped engines all over the planet. Of those I can count the failures of the optical pick up that have made their way back to me on one hand.

That includes running from Amsterdam to Beijing and from the northernmost tip of Africa all the way to the southernmost cape, mostly on dirt roads. Both those treks were with the same engine and the same dizzy, with no issues. Thats in a Type 4 application, as well.

Unless some variable imposes a collateral condition I don't believe the optical unit will fail.

Well that is a good data sample ...... what coil and wires do you recommend using with this Unilite ?

[Jake Raby]

I have over 800 Mallory Uni-Lite equipped engines all over the planet. Of those I can count the failures of the optical pick up that have made their way back to me on one hand.

That includes running from Amsterdam to Beijing and from the northernmost tip of Africa all the way to the southernmost cape, mostly on dirt roads. Both those treks were with the same engine and the same dizzy, with no issues. Thats in a Type 4 application, as well.

Unless some variable imposes a collateral condition I don't believe the optical unit will fail.

Well that is a good data sample ...... what coil and wires do you recommend using with this Unilite ?

Magnecor are the best.

[gothspeed]

I have over 800 Mallory Uni-Lite equipped engines all over the planet. Of those I can count the failures of the optical pick up that have made their way back to me on one hand.

That includes running from Amsterdam to Beijing and from the northernmost tip of Africa all the way to the southernmost cape, mostly on dirt roads. Both those treks were with the same engine and the same dizzy, with no issues. Thats in a Type 4 application, as well.

Unless some variable imposes a collateral condition I don't believe the optical unit will fail.

Well that is a good data sample ...... what coil and wires do you recommend using with this Unilite ?

Magnecor are the best.

what about the coil?