what does a coil do when it starts breaking down?

Check in with your pals daily. What's on your mind?
User avatar
flyinhillbilly
Posts: 962
Joined: Wed Mar 29, 2006 9:21 pm
Location: northwest arkansas
Contact:

what does a coil do when it starts breaking down?

Postby flyinhillbilly » Sat Jul 19, 2008 11:11 am

my car has started blubbering and not reving past about 5k and i've been all over everthing else on the car. the coil i have is a new this year msd hvc2, so i've been hesitant to change it, but it's looking like i need to give it a whirl. before i dump another $140 on a coil i was just looking for some affirmation that this may actually be the problem.
the police never think it's as funny as i do

User avatar
Outlaw Nick
Posts: 98
Joined: Sun Mar 12, 2006 3:07 pm
Location: Houston, TX

Postby Outlaw Nick » Sat Jul 19, 2008 6:47 pm

My experience with coils has been that they either work or they don't. I have never had one that performed poorly before they quit completely.
[i]Your New Home For Fast Doorslammer News, Results And Discussion - FastDoorslammers.com![/i]

www.fastdoorslammers.com

User avatar
Lippy
Posts: 3181
Joined: Thu Feb 23, 2006 8:52 pm
Location: KANSAS

Postby Lippy » Sun Jul 20, 2008 1:02 am

Need more info, what did you check flyin? Does it do it in low too?
If you think it's exciting now, wait till we start it.

User avatar
flyinhillbilly
Posts: 962
Joined: Wed Mar 29, 2006 9:21 pm
Location: northwest arkansas
Contact:

Postby flyinhillbilly » Sun Jul 20, 2008 2:33 am

it does it in every gear, i mean this sucker just won't rev out. i did run a new best friday night though. 10.97@123 running like crap.
the police never think it's as funny as i do

User avatar
Nor'Easter
Posts: 6
Joined: Tue Feb 28, 2006 5:10 am
Location: Methuen, MA

Postby Nor'Easter » Sun Jul 20, 2008 7:00 pm

bad coils do two things(separately)

won't fire..

leak oil
Keep On Keepin On.

User avatar
Rapid Randy Baker
Posts: 8075
Joined: Thu Feb 23, 2006 9:05 am
Location: Des Moines, Iowa
Contact:

Postby Rapid Randy Baker » Sun Jul 20, 2008 11:32 pm

The two coil problems I have experienced with the Mallory coils:

A couple of years ago the car would sound fine in the pits and burnout. It would leave soft, not rev very good, and then fall really flat after the shift. It just hated the load, and each gear it was worse.

2-weeks ago, the coil seemed ok 1st run, although it blubbered just before the shift at the top of low. Then no fire for the 2nd round. No other warning just quit.

For what it is worth,

Rapid
NITRO PILOT

[url]http://.www.rapidrandy.net[/url]

User avatar
Eric David Bru
Posts: 505
Joined: Thu Sep 07, 2006 1:32 pm
Location: The Skunk Works
Contact:

Postby Eric David Bru » Mon Jul 21, 2008 12:51 am

MSD should be able to give you some numbers to check out with your multi-tester...

If all else fails, send it back to them and them test it.

Parts have a mysterious reputation of returning to MSD bad, being returned to the racer as GOOD, with no apparent changes or charges...

I tend to think of this as a 'free' warranty when/if this happens.

EDB

PS It's worth a try.
Outlaw Eric :cool:

User avatar
Bob Kraemer
Posts: 1231
Joined: Fri Feb 24, 2006 11:14 am
Location: Cincinnati, Ohio

Postby Bob Kraemer » Mon Jul 21, 2008 9:47 am

Worn out valve springs maybe if it wont rev as for the blubbering could be a bad power valve in the carb.
Bob Kraemer

Certifiable Insanity

"Friends are quiet angels that lift us to our feet when our wings have trouble remembering how to fly.''

User avatar
Lippy
Posts: 3181
Joined: Thu Feb 23, 2006 8:52 pm
Location: KANSAS

Postby Lippy » Mon Jul 21, 2008 12:03 pm

I'm with Bill and everyone, send the coil back and get it replaced or checked . Coil will do weird stuff. Remember how the old point condensers were!!
If you think it's exciting now, wait till we start it.

User avatar
jim sanders
Posts: 8740
Joined: Fri Feb 24, 2006 8:54 am
Location: St.Louis Mo.
Contact:

Postby jim sanders » Mon Jul 21, 2008 3:10 pm

years ago i had an ACCEL coil go bad.. motor would start and run, rev etc untill a load .. then break up... borrowed another one and with no other changes pulled every gear... so anything is possible.. on latemodel stuff it seems the coil(s) don't outlast the plugs anymore :?
GOOD TO GO !!
Uncle Curt Wasson album
[url=http://www.glowfoto.com/users2/gatorgumbo][img]http://www.glowfoto.com/siteimages/linktogallery.gif[/img][/url]


Return to “What's Up”

Who is online

Users browsing this forum: No registered users and 3 guests

cron