Search



Go Back   MustangForums.com > Ford Mustang Tech > Classic Mustangs (Tech)
Sign in using an external account
Register Forgot Password?
Search

Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 07-14-2014, 05:18 AM   #1
musnicki
3rd Gear Member

 
musnicki's Avatar
 
Join Date: Dec 2007
Vehicle: 1967, Ford, Mustang Fastback
Location: Bangkok, Thailand
Posts: 931
James Musnicki
Send a message via AIM to musnicki
Default MSD 6AL box life span?

My box is getting power in but no power out to the coil. I've had it for 7 years...daily driver. Just wondering if I'm over due for a new one or if they should last longer. I replaced the coil last year.

James
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
__________________


Musnicki
musnicki is offline   Reply With Quote
Old 07-14-2014, 09:11 AM   #2
racer_dave
2nd Gear Member

 
racer_dave's Avatar
 
Join Date: Aug 2009
Vehicle: 1967 Mustang Fastback
Location: Michigan
Posts: 304
Default

I'd say it's time for a new one since it doesn't work? For my racecars, I run them about 4 seasons and then sell them. I'm not sure which is harder on them, daily driver=more use/less load or racing=less use/more load. But I replace them at 4yrs so I don't have to worry about it dying during a race. I do keep a couple older ones that are still good as spares.
__________________
The gas pedal fits best right up against the firewall, so I figure it should be there as much as possile
racer_dave is offline   Reply With Quote
Old 07-14-2014, 09:43 AM   #3
bop11
 
Join Date: Apr 2014
Vehicle: 67 mustang coupe
Location: PA
Posts: 45
Default

Even transistors can burn out. Probably the problem is vibration has cracked some solder joints. If you can open the box and inspect the solder joints with a magnifying glass, look for little circles around the leads or lose parts. The circles are hard to see but are solder fractures. Try re soldering the board if possible and then replace it if it still doesn't work..
There is a YouTube video on these repairs.
bop11 is offline   Reply With Quote
Old 07-14-2014, 11:54 AM   #4
racer_dave
2nd Gear Member

 
racer_dave's Avatar
 
Join Date: Aug 2009
Vehicle: 1967 Mustang Fastback
Location: Michigan
Posts: 304
Default

on my MSD's all the boards are coated in thick epoxy. I don't think there's a way to get in there to repoint the solder joints or even test the different components.
__________________
The gas pedal fits best right up against the firewall, so I figure it should be there as much as possile
racer_dave is offline   Reply With Quote
Old 07-14-2014, 02:17 PM   #5
Derf00
6th Gear Member
 
Join Date: Feb 2005
Vehicle: '08 S197 GT
Location: AZ
Posts: 9,568
Default

They epoxy them so they don't fail due to broken solder joints as pointed out by bop11. The problem then becomes, the PCB becomes unserviceable (disposable). My guess is that either capacitor, resistor, or transistor popped.

Going to have to pony up and just buy a new one or contact MSD to see what they say.
__________________
08 S197 GT Auto: FRPP Strut Tower Brace, FRPP Bullitt CAI, Bama 91-P Tune
Pending upgrades: Shaftmasters Aluminum 3.5" DS, FRPP 3.73 gears, Axle back exahust (?)

Quote:
Originally Posted by LostBoyz View Post
if you are getting 29mpg in your 5.0, you aren't driving it correctly
Derf00 is offline   Reply With Quote
Old 07-14-2014, 05:01 PM   #6
69mach1377
5th Gear Member

 
69mach1377's Avatar
 
Join Date: Aug 2004
Vehicle: 69 Mach1
Location: ABQ, NM, USA
Posts: 2,158
Default

I think they'll repair it for a fee...or supply a refurb.
__________________
69Mach1 - warmed up 395W and Gforce T5 with hydraulic clutch, 3.50:1 posi, rack&pinion/tilt, 17x8/235s (2003) Mach1 Rims front & 17x9/275s rear, all MSD, Holley 750, custom paint, Shelby drop, Hotwheels scale is 1 to 1.
http://photobucket.com/albums/v618/danaranda/69stang
69mach1377 is offline   Reply With Quote
Old 07-15-2014, 12:18 AM   #7
musnicki
3rd Gear Member

 
musnicki's Avatar
 
Join Date: Dec 2007
Vehicle: 1967, Ford, Mustang Fastback
Location: Bangkok, Thailand
Posts: 931
James Musnicki
Send a message via AIM to musnicki
Default

I bought a new one, but I move to El Paso (will live there for 10 months) in two weeks, so maybe I will stop by the MSD plant there and see if they can rebuild it.

New one, fired right up...well kinda...but yea, I was able to drive home.
__________________


Musnicki
musnicki is offline   Reply With Quote
Old 07-15-2014, 01:28 PM   #8
musnicki
3rd Gear Member

 
musnicki's Avatar
 
Join Date: Dec 2007
Vehicle: 1967, Ford, Mustang Fastback
Location: Bangkok, Thailand
Posts: 931
James Musnicki
Send a message via AIM to musnicki
Default How not to put your "box" in

MSD installation gone wrong. My windshield wipers sucked up some AC/Heater tubing, went off track and then sliced through some wires under the dash.

Click the image to open in full size.

Click the image to open in full size.

Finally got it all sorted out and should be straight for a cruise at Windward Mall, Kaneohe, HI this Friday. If any of you are around come on out!

Click the image to open in full size.
musnicki is offline   Reply With Quote
Old 07-15-2014, 01:42 PM   #9
fastbackford351
Foghorn Leghorn
 
fastbackford351's Avatar
 
Join Date: Dec 2006
Vehicle: 1967 Fastback & 2002 GT Convertible
Location: Florida
Posts: 1,899
Default

Oh man, the mangled under dash wiring is a kick in the nuts.
__________________
Government Warning:

Governments are extremely dangerous.
Death, imprisonment, theft of property
and loss of freedom will result from
giving them too much power.
fastbackford351 is offline   Reply With Quote
Old 07-18-2014, 07:14 AM   #10
Al Newman
2nd Gear Member
 
Join Date: Sep 2012
Vehicle: 1966 Mustang Conv
Location: Tx
Posts: 183
Default

MSD boxes are usually good for anywhere to 1 minute through twenty years, but experience shows failure rates in the first five years are pretty high. For a daily driver, it baffles me that folks spend the big bucks to install something that can't even compare service-wise to OEM ignition stuff.
Al Newman is offline   Reply With Quote
Old 07-18-2014, 07:14 AM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 04:54 AM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.5.2

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup