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Old 09-13-2014, 07:41 PM   #1
FINESPLINE
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Default MSD distributor

Very recently I found some time to go over my Camaro and started with the ignition system. Asked on the forum about ignition wires and thanks for all the recommendations . I ended up with MSD 8.5 wires. Bought a new cap and rotor and went about my business replacing parts. The problem I came across when I removed the cap on the MSD billet distributor was an awful lot of corrosion buildup on the distributor parts. Looks like light rust but it was getting dark out so tough to tell until I pull it out tomorrow. Is there anything I can use to clean up the inside without doing any serious damage to any electrical parts. It is a mechanical advance version. Thanks, John

PS. ---has anybody had this problem or is it from just sitting in garage for long peiods of time ?
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Old 09-13-2014, 08:18 PM   #2
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Default Re: MSD distributor

For some odd reason, this happens to the orange 69 Camaro A/SA car on a regular basis. We've actually had to take it apart a couple of times, and clean the rust off with a scotch brite pad or a brass brush. We run the timing locked out. It happens whether the car sits, or it gets raced. I don't remember it happening to the green 69 Camaro SS/EA. That car uses a crank trigger, but is otherwise quite similar.

I do think that once the parts rust, no matter how you clean them, or even if you keep them lightly oiled, they will rust again. I've been considering replacing the internals.
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Old 09-13-2014, 08:45 PM   #3
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Default Re: MSD distributor

Hi,

Do you have a few vent holes drilled in addition to the rotor alignment hole??????????

Ozone will help create rust in a heartbeat...the larger the gaps inside and under the cap (acorn to rotor, rotor tip to wire contacts) the more ozone..

Just a thought..

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Old 09-13-2014, 09:56 PM   #4
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Default Re: MSD distributor

Alan, wonder if the replacement internals have been updated with a coating to prevent such a rust buildup. Maybe time for a phone call to MSD.


Bob, never have drilled vent holes in cap. Somewhere in the past I did here a conversation about that. I have a rotor window cap on top but have never run the engine with it open. I guess running the cap open to vent the zone cannot hurt. Expensive cap to drill holes in. lol
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Old 09-15-2014, 06:36 PM   #5
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Default Re: MSD distributor

Alan,, you have a PM---
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Old 09-15-2014, 08:22 PM   #6
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Default Re: MSD distributor

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Originally Posted by FINESPLINE View Post
Alan,, you have a PM---
Thank you.
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Old 09-16-2014, 11:04 AM   #7
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Default Re: MSD distributor

This is a common problem with MSD distributors - anyone who expects bare metal to not rust needs to see my sales brochure for the Brooklyn Bridge! Seriously, Google "rusty MSD distributor" and see all the angry MSD owners. MSD gives the BS answer that it is the ionizing effect of their high energy spark but it is simply bare metal rusting. They knew about this for years and did nothing about it - I do believe they now zinc plate the parts. You need to disassemble the distributor, clean the parts and apply a thin coat of paint to keep it from rusting again. Use a brass wire brush to clean the reluctor and do not paint the pickup! Paint the face of the pickup if it is bare metal. Lubricate pivot points sparingly if using mechancial advance.
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Old 09-17-2014, 08:22 AM   #8
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Default Re: MSD distributor

Read all kinds of unhappy MSD customers....
https://www.google.com/?gws_rd=ssl#q...stributor+rust
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Old 09-17-2014, 03:08 PM   #9
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Default Re: MSD distributor

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Read all kinds of unhappy MSD customers....
https://www.google.com/?gws_rd=ssl#q...stributor+rust
Yes Bob, It sure can be ugly under the cap. Calls for some serious house cleaning. I am experimenting by coating with nail polish.
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Old 09-17-2014, 07:02 PM   #10
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Default Re: MSD distributor

If you were to just leave the ends of the reluctor wheel bare, you should be fine. Do not pain the ends of the magnet in the pick up.

Once metal such as that has rusted, it will continue to rust so long as it is bare and exposed to the elements.
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