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-   -   NEED MSD HELP Losing power and replacing parts (http://www.clubcobra.com/forums/ignition/131736-need-msd-help-losing-power-replacing-parts.html)

BADSN8K 11-25-2014 05:22 AM
NEED MSD HELP Losing power and replacing parts
 
1 Attachment(s)
Hello all!

I have a 67 EM with a 406 Ligenfelter

Digital 6AL
8416 roto and cap
8225 coil


Finding that I have to replace roto and cap every 1000-3000 miles

Losing power while driving.

NOTE pic attached is cap before I switched to MSD.

Any suggestions or is this normal????? SMH!!!

hope someone can offer help!!!

Dwight 11-25-2014 06:22 AM
this is normal for MSD

I run a stock Ford cap with no problems.

but my buddies with MSD have that problem. Called MSD and they know about it but have done nothing to correct the problem.
I think it's the material they use in the cap combined with the high voltage.

IMHO
Dwight

joyridin' 11-25-2014 06:38 AM
The part number you have shows a GM HEI cap and rotor. Try a Petronix cap and rotor. I just put them on my car and they seem to be better quality than the MSD versions.

DonC 11-25-2014 08:45 AM
Coastal:
Your problem is very basic. You've got the engine in backwards. Turn it around and that should cure the problem. (Sometimes I just can't help myself) );-)
DonC

lippy 11-25-2014 08:45 AM
On the MSD gear, the rotor tang often doesn't make full contact with the carbon button on the inside of the cap. Put in a new rotor and cap, and bend the tang on the rotor up to ensure it makes good contact. This is a known issue and could very well solve your problem.
They will replace under warranty for this, btw.

Bernica 11-25-2014 12:54 PM
Quote:
Originally Posted by lippy (Post 1327465)
On the MSD gear, the rotor tang often doesn't make full contact with the carbon button on the inside of the cap. Put in a new rotor and cap, and bend the tang on the rotor up to ensure it makes good contact. This is a known issue and could very well solve your problem.
They will replace under warranty for this, btw.
And get an extra rotor and cap to keep in the trunk!;)


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