Rusty MSD distributor
#1769533
03/02/15 09:01 PM
03/02/15 09:01 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
OP
pro stock
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OP
pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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I took my MSD distributor out yesterday and looked under the cap and it looks awful. The reluctor wheel is covered with rust. Would it be ok to take the shaft out of the distributor and sand blast the reluctor wheel.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: Rusty MSD distributor
[Re: CHAPPER]
#1769537
03/03/15 10:10 PM
03/03/15 10:10 PM
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Joined: Oct 2009
Posts: 1,267
North, Alabama
D-50
OP
pro stock
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OP
pro stock
Joined: Oct 2009
Posts: 1,267
North, Alabama
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Would it be ok to paint the reluctor after it is sand blasted so it would not rust again quickly., of course I would sand the paint off the ends.
1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
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Re: Rusty MSD distributor
[Re: D-50]
#1769539
03/03/15 10:24 PM
03/03/15 10:24 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Would it be ok to paint the reluctor after it is sand blasted so it would not rust again quickly., of course I would sand the paint off the ends.
I dont see any issue... the tips are what counts
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Re: Rusty MSD distributor
[Re: MR_P_BODY]
#1769540
03/04/15 12:15 AM
03/04/15 12:15 AM
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Joined: Jan 2003
Posts: 4,273
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,273
Morrow, OH
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Drill some holes in the cap for ventilation to stop the rusting.
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: Rusty MSD distributor
[Re: markz528]
#1769541
03/04/15 02:32 AM
03/04/15 02:32 AM
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Joined: Feb 2003
Posts: 992
Addison,IL
OUTLAWSSAA
super stock
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super stock
Joined: Feb 2003
Posts: 992
Addison,IL
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Quote:
Drill some holes in the cap for ventilation to stop the rusting.
This is correct. Ozone is created from the spark in the cap, thus creating the rust. Drilling the holes will help alleviate the problem.
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Re: Rusty MSD distributor
[Re: MartyQ]
#1769543
03/05/15 12:10 PM
03/05/15 12:10 PM
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Joined: Jan 2003
Posts: 4,273
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,273
Morrow, OH
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Got this from Google but it is what we did with my cousin's car that had the same rusting problem as you. In addition, it was destroying his carbon electrode.
You should also vent the cap by drilling 2 - 1/4” holes 180 degrees across from each other midway up the cap between two of the poles. This will allow you to using the spinning of the rotor to draw fresh air through the cap and keep that ionizing of the collected moisture to a minimum. If this does not seem to work as well as we planned, drill an additional two holes at 90 degrees from the original holes.
See attachment
The rust or corrosion is a by product of moisture being trapped inside the cap and the high energy of the MSD ionizing that moisture. By venting the cap, we use the action of the rotor to continually draw fresh air through the cap keeping the moisture down to a minimum.
Thanks,
MSD Tech
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Never gave that any thought. I don't think it would hurt anything,,but others may have different opinions. Some people say the rust doesn't really matter, but I never agreed to that either. 
