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  #1  
Old 09-24-2012, 11:32 PM
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Default Distributor contacts

We running an 7AL box with a HVC II coil stock Ford distributor and an MSD crank trigger. The distributor cap contacts are brass(msd cap) but after a few passes the contacts turn black inside the cap like they burnt...any ideas?
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Old 09-25-2012, 07:05 AM
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post a pic of the inside of the cap
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Old 09-25-2012, 08:30 AM
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Ok I'll post a picture tonight.

Also what is the complete amperage draw of all these components together, i have looked but cant find info.

7AL box
rpm activation switch
starter saver
HVC II coil

Also what is the lowest voltage that these will work efficiently at.

I just figured i would add that here as to start another thread.

Thanks
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Old 09-25-2012, 07:08 PM
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Well here a pic and the blackspots are the question.
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File Type: jpg 001.jpg (455.0 KB, 8 views)
File Type: jpg 006.jpg (470.7 KB, 8 views)
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Old 09-26-2012, 06:51 AM
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thats normal....where are you located at ?....ohio ...indiana?
the amount of current being produce from the 7 and 8 series ...will create
excessive heat on the rotor and cap terminals.
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Old 09-26-2012, 06:54 AM
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Im in Missouri , South West part.
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Old 09-26-2012, 06:59 AM
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just for arguement sake...drill a hole in a old cap (so you can see the terminal in the cap ) like checking rotor phasing...

http://www.youtube.com/watch?v=aWMlNwGW0tM

http://www.youtube.com/watch?NR=1&fe...&v=wifTHbb06_I


look at the whats going on inside the cap....
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Old 09-26-2012, 08:01 AM
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Quote:
Originally Posted by msdtech1955 View Post
just for arguement sake...drill a hole in a old cap (so you can see the terminal in the cap ) like checking rotor phasing...

http://www.youtube.com/watch?v=aWMlNwGW0tM

http://www.youtube.com/watch?NR=1&fe...&v=wifTHbb06_I


look at the whats going on inside the cap....
We have a cap with hole drilled in it at number 1 plug so we can phase the distributor.

We was wondering if possibly the coil may be bad 1 way or another since thats the only current going thru the cap.
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Old 09-26-2012, 08:31 AM
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Quote:
We was wondering if possibly the coil may be bad 1 way or another since thats the only current going thru the cap
what is the truck doing ?
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Old 09-26-2012, 06:01 PM
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Mud racing in a mud pit 150 foot pit in 2.7 seconds from a standing dead stop in about 1-2 foot of mud, pit is usually around 4 foot deep and sloppy. This is an alcohol injected motor also 604 cubic inch at 1200 horse and 925 foot pounds of torque.
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