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Old 05-01-2013, 04:38 PM
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Leaking Mallory Promaster coils

Hey guys,

I will be re-doing the top end of my SBC soon and in my collecting of parts I decided to replace the accel coil with the big Mallory Promaster cube ignition coil.

I hopped online and ordered a part #29625, it sounded like the best option for my set up. Higher reving Small Block with a CD ignition.

I received the coil and it was leaking oil from the bottom "fill plate" (I assume). I let the company know and they were quick to send me out another coil, the 2nd one is also leaking. This time from where the two halves of the plastic case come together.

Are these coils known to seep oil? Shall I try a third one, or attempt to seal one of them and replace it's oil? Is it even possible to get ignition coil oil? I've had great luck using Mallory ignition parts on past builds and I'd like the use this coil on my current project.

Thanks guys. Cheers ~Mykk

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Old 05-01-2013, 07:15 PM
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I have had some of the old ones leak. I just re-sealed the case and added 20w non detergent oil.. They worked..
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Old 05-01-2013, 08:19 PM
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I don't have a dog in this fight, but you shouldn't have to re-fill and re-seal a new part. I would consider trying to talk to someone at Mallory (customer service) and let them know what you got - ask them to swap the leaky one you got for a good one.
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Old 05-02-2013, 04:27 PM
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We have a third one on it's way. We'll see how it goes. It dawned on my this morning, I wonder if these coils are having problems behind shipped from where ever they originated and climbing up to 5400ft elevation where I'm at.
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Old 05-02-2013, 09:49 PM
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The brainiacs that design these things always think of stuff like elevation pressure changes.
Yea right.

vicrod
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