HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech


Reply
 
Thread Tools Display Modes
Old 05-24-2015, 09:51 PM   #1
cal
Member
 
cal's Avatar
 
Join Date: Mar 2007
Location: southern md
Posts: 370
Likes: 39
Liked 30 Times in 17 Posts
Send a message via AIM to cal
Default Motor won't start after 2nd rd?

Hello all
Well here is a good one for you.
Motor starts right up when you start it for the 1st time every day. then for the time run it starts fine, 1st rd it starts fine, 2nd rd it will start right up, then bam 3rd rd it will just spin over and over and not even try to start. Then out of the blue it will fire up, once it stats it will run fine till you cut it off, and try to start it back up. It is really strange, has happened at at leaset the last 3 races.
Little info, 522 BBC, pretty standard stuff, 1050, Brodax heads, Dart intake MSD Dist, 7AL2,
gas motor.
Any ideas?

Cal
S/ST HR 1177
cal is offline   Reply With Quote
Old 05-24-2015, 10:26 PM   #2
Bill Moulding
Junior Member
 
Join Date: Feb 2006
Posts: 58
Likes: 0
Liked 3 Times in 3 Posts
Default Re: Motor won't start after 2nd rd?

My Camaro had a similar problem but only once. It wouldn't fire sitting in the staging lanes for the final round. I wound it over several times and finally it fired. It was a faulty toggle for the ignition (on/off). Don't know why yours waits till the third round but it is a place to start. Bill
Bill Moulding is offline   Reply With Quote
Old 05-25-2015, 10:05 AM   #3
fordteacherguy
Member
 
Join Date: Jun 2007
Location: Federal Way, WA
Posts: 233
Likes: 23
Liked 147 Times in 47 Posts
Default Re: Motor won't start after 2nd rd?

I would check the coil for proper resistances on the primary and secondary sides and look at heat related ignition issues. Applying some heat with a head gun on the related electronics (box, distributor, coil) can help identify a intermittent part.
__________________
Brian Thompson
NHRA Stock / Super Stock
Class P/SA 6665 SS/MA 6665
fordteacherguy is offline   Reply With Quote
Old 05-25-2015, 05:22 PM   #4
Tom Goldman
VIP Member
 
Tom Goldman's Avatar
 
Join Date: Jan 2003
Location: Allentown,PA
Posts: 2,433
Likes: 770
Liked 696 Times in 201 Posts
Default Re: Motor won't start after 2nd rd?

Ignition switch is a good place to start.
If you have an old style MSD triangular style that is oil filled you might want to check to see if it still has any oil in it .
I had one that was nearly empty that gave similar problems and have seen at least two others with the same problem.
It seems to be more common if the coil is in the engine compartment.
__________________
Tom Goldman 1500 SG , 1506 STK
Tom Goldman is offline   Reply With Quote
Old 05-25-2015, 05:29 PM   #5
Alan Roehrich
VIP Member
 
Alan Roehrich's Avatar
 
Join Date: May 2006
Location: Murfreesboro TN
Posts: 4,904
Likes: 984
Liked 1,016 Times in 264 Posts
Default Re: Motor won't start after 2nd rd?

If it cranks but will not start, as others said, check the ignition switch, the coil, the coil wire, the pick up (what ever style, magnetic or optical, at the crank or in the distributor), and the ignition box.
__________________
Alan Roehrich
212A G/S
Alan Roehrich is offline   Reply With Quote
Old 05-25-2015, 10:21 PM   #6
Keith 944
VIP Member
 
Keith 944's Avatar
 
Join Date: Feb 2006
Location: Dela-where?
Posts: 2,112
Likes: 999
Liked 1,635 Times in 517 Posts
Default Re: Motor won't start after 2nd rd?

Hey Cal it did start 3rd round so it must be getting better, I would leave it alone....lmao
__________________
KEITH MAYERS
2 X somebody
many X nobody
Keith 944 is offline   Reply With Quote
Old 05-26-2015, 11:33 AM   #7
FED 387
VIP Member
 
Join Date: Jun 2006
Posts: 3,347
Likes: 309
Liked 279 Times in 149 Posts
Default Re: Motor won't start after 2nd rd?

I would swap out first the coil----what coil and part number are you using?? next swap out the ignition box-- what box and part number are you using--- FED 387
FED 387 is offline   Reply With Quote
Old 05-26-2015, 12:48 PM   #8
RobbieRacer
Member
 
RobbieRacer's Avatar
 
Join Date: Jul 2012
Location: Phoenix, Az
Posts: 320
Likes: 17
Liked 116 Times in 40 Posts
Default Re: Motor won't start after 2nd rd?

Quote:
Originally Posted by Bill Moulding View Post
My Camaro had a similar problem but only once. It wouldn't fire sitting in the staging lanes for the final round. I wound it over several times and finally it fired. It was a faulty toggle for the ignition (on/off). Don't know why yours waits till the third round but it is a place to start. Bill
My car did the same thing. Replaced the switch and never a problem after that.
RobbieRacer is offline   Reply With Quote
Old 05-26-2015, 03:13 PM   #9
buzzinhalfdozen
Senior Member
 
Join Date: Sep 2006
Location: Bellevue Ohio
Posts: 985
Likes: 0
Liked 12 Times in 9 Posts
Default Re: Motor won't start after 2nd rd?

WOW I've never heard of many switch failures till now...however here's what I'd do to eliminate that as a source of the problem. If box is easily accesible put a volt meter in car, when issue arises simply test for voltage on the IGNITION point on the box should be battery voltage.If box is not easily accessed put a short lead on Ignition terminal of box with insulated end, then do the same test as quickly as possible as it appears the issue resolves itself.Other option is to zip tie, duct tape, velcro meter in car already hooked up and merely switch on as needed to test.Personally to quickly narrow down the issue I would use my MSD tester to quickly rule out a non funtional crank sensor, test the ability to fire the coil ect. Good luck and let us know what you find. Joe
__________________
Joe Buchanan SS/BX 3117
buzzinhalfdozen is offline   Reply With Quote
Old 05-27-2015, 08:30 AM   #10
Mike Taylor 3601
VIP Member
 
Mike Taylor 3601's Avatar
 
Join Date: Oct 2008
Location: Somerset,Ky
Posts: 1,303
Likes: 198
Liked 116 Times in 48 Posts
Default Re: Motor won't start after 2nd rd?

If starter solenoid has the extra post could run wire from it to + side of coil,will send 12 volts to coil while cranking.
Mike Taylor 3601
Mike Taylor 3601 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 10:31 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.