C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

MSD Ignition

Thread Tools
 
Search this Thread
 
Old Mar 14, 2019 | 09:48 PM
  #1  
Red Hot 71's Avatar
Red Hot 71
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2013
Posts: 118
Likes: 1
Default MSD Ignition

Have a 71 Corvette w/MSD ignition. Just finished header side pipe install & while checking out exhaust sound, revved motor a couple of times for tone & engine just quit. I do not appear to have any spark. Can an MSD box just die? I did not run the car long enough to build up any kind of heat. Looking for recommendations on where to start. That MSD 6A box is pretty pricey to just parts change. Any help would be appreciated as warm weather is upon us here in NC.
Reply
Old Mar 14, 2019 | 09:55 PM
  #2  
Big2Bird's Avatar
Big2Bird
Le Mans Master
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Dec 2006
Posts: 8,837
Likes: 1,027
Default

Originally Posted by Red Hot 71
Have a 71 Corvette w/MSD ignition. Just finished header side pipe install & while checking out exhaust sound, revved motor a couple of times for tone & engine just quit. I do not appear to have any spark. Can an MSD box just die? I did not run the car long enough to build up any kind of heat. Looking for recommendations on where to start. That MSD 6A box is pretty pricey to just parts change. Any help would be appreciated as warm weather is upon us here in NC.
Yes, they can just die. I have tester here.
I suggest going to MSD.com, and look up their trouble shooting tech papers.
It can be either the coil or the box or even both.
Then call MSD and raise some...........................
Reply
Old Mar 15, 2019 | 08:49 PM
  #3  
mrvette's Avatar
mrvette
Team Owner
Active Streak: 120 Days
Liked
Loved
Community Favorite
 
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Default

My MSD failed on me too, did not last long and too boot I put it under the dash, not in the engine heat....

my only operational comment is that it made no difference compared to a stock HEI......
Reply
Old Mar 15, 2019 | 11:49 PM
  #4  
cabman72's Avatar
cabman72
Pro
Conversation Starter
All Eyes On Me
Photogenic
Liked
 
Joined: Jan 2017
Posts: 648
Likes: 51
From: Beaver County PA
Default

Is the red light on the MSD box lit when the key is on. Maybe the red "hot" wire has a loose connection or maybe a blown fuse.
Reply
Old Mar 16, 2019 | 09:36 PM
  #5  
Red Hot 71's Avatar
Red Hot 71
Thread Starter
Instructor
10 Year Member
 
Joined: Sep 2013
Posts: 118
Likes: 1
Default

Thanks for the input guys. Wire going to the distributer was loose. Must have been from vibration. Thanks again!
Reply

Get notified of new replies

To MSD Ignition





All times are GMT -4. The time now is 08:17 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE