Bad56Sedan
"13th Year" Gold Supporting Member
Posts: 1171

Loc: Pasadena, Texas
Reg: 04-29-04
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11-14-19 02:54 PM - Post#2780161
The Reluctor on my MSD distributor is in a rusty shape.
Pro billet 8570.
Is it possible to just glass bead the Reluctor and reset the air gap?
The magnetic pick up is rusty also, terrible shape.
I will replace the pick up.
Or should I replace the Reluctor also, which I just don't want to due to the risk bending the part it is attached to.
Looks like this is common and some say drill two vents in the cap, which I will do. Yet the cap is vented with the factory vent.
Thanks in advance!
Looks like there is a removal tool, but it's not for this distributor, or am I wrong? There is no threads on any of these parts so it will not work.
VC56S 2 door Sedan, 39 Years
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Bad56Sedan
"13th Year" Gold Supporting Member
Posts: 1171

Loc: Pasadena, Texas
Reg: 04-29-04
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11-14-19 03:24 PM - Post#2780165
In response to Bad56Sedan
VC56S 2 door Sedan, 39 Years
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Rick_L
Honored Member
Posts: 27668

Loc: Katy, Tx, USA
Reg: 07-06-00
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11-14-19 05:45 PM - Post#2780172
In response to Bad56Sedan
They do that, but I've never heard of any negative results to the pickup or reluctor. Maybe there are problems if the corrosion is really bad. But I've seen HEI distributors that were a complete mess and the pickup/reluctor still worked.
The mechanical advance mechanism will get the corrosion too, and that may make it sticky or wear the pins that the weights swing on.
Venting the cap is the best answer to prevent this or at least delay problems.
This distributor is the same technology as a GM HEI distributor and they are both prone to this.
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IgnitionMan
Valued Contributor
Posts: 3688
Reg: 04-15-05
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11-14-19 06:26 PM - Post#2780177
In response to Bad56Sedan
The reluctor simply presses on and off, and there is a very small diameter roll pin that sets it in place and phased, so, mark the one V groove with the pin with a single dimple.
The reluctor can be removed with a hammer and round, flat end punch, same for reassembly, the press fit isn't great. BE CAREFUL WITH THE RELUCTOR, they can be damaged if you get animal with them.
Bead blast, and then paint it with clear epoxy paint.
The magnetic pickup is not only held in place with two screws and nuts, but with silicone seal as well. I've never seen one come lose, even ones that do not have silicone on them.
Carefully wire brush the rust off the metal, and coat with clear epoxy paint, done.
ONE EXTREMELY IMPORTANT THING. The magnet is polarity sensitive, and has a Marks-A-Lot line on the end that sits facing the pickup coil, NOT the open end. Reversing the magnet will change the pickup phasing by approximately 30 to 35 degrees, so, get the magnet back in properly. Phasing relates to the rotor firing tip to the wire terminals in the cap.
I usually make the Marks-A-Lot line a lot wider when I put a new system together, to make sure the magnet does not get installed backwards.
Pickup gap,use a PLASTIC feeler gauge, NOT a steel one, non-magnetic copper is fine as well. Pickup gap is fine with between .015 and .018.
MSD billet magnetic pickup is p/n 8466-1, and is also wire markings sensitive to the two wire connector. Connector is marked 1, purple stringer, and 2, orange stringer. Backwards, they will mis-phase even farther, adding another 30 degrees of inaccuracy.
Reluctor for straight on phasing is p/n MSD 8415. Be advised, there is a new reluctor for the EFI distributors for the Sniper systems that you DO NOT want for a carburetted engine setup, p/n MSD 8627. It uses +10 degrees of mis-phasing for the computer to read and time the engine for the Sniper EFI ONLY..
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Bad56Sedan
"13th Year" Gold Supporting Member
Posts: 1171

Loc: Pasadena, Texas
Reg: 04-29-04
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11-15-19 07:17 PM - Post#2780259
In response to IgnitionMan
Thanks for the info, sure enough, liquid wrench over night and several times during the day, used long flat headed punch and just a bit more than slightly hitting one side then the other the old rusty Reluctor slowly moved down and I got it off!
Thanks for the info!
VC56S 2 door Sedan, 39 Years
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Mel Foye
*VIP* Founding Member
Posts: 4941

Reg: 09-29-00
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11-16-19 12:08 PM - Post#2780301
In response to IgnitionMan
Good job Dave. Mel
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