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Re: Coughing/popping when revved
[Re: mopowers]
#1585423
03/03/14 03:07 PM
03/03/14 03:07 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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You originally mentioned that when it popped the dome light would dim & I wonder if that is from the starter partly or wholly engageing at that point in time (which takes alot of current & will make a light dim). Could you take off the brown (sol) wire at the starter relay in case the relay is intermittently engaging the starter then jump it at the starter to start it & retry it & if it still does it then replace the starter to elim that issue. I'm bothered by the 1 spark you saw & was a helper loading the eng as you eyeballed things under the hood?
live every 24 hour block of time like it's your last day on earth
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Re: Coughing/popping when revved
[Re: RapidRobert]
#1585425
03/03/14 03:15 PM
03/03/14 03:15 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
OP
master
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OP
master
Joined: Sep 2006
Posts: 3,009
Sac, CA
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Quote:
You originally mentioned that when it popped the dome light would dim & I wonder if that is from the starter partly or wholly engageing at that point in time (which takes alot of current & will make a light dim). Could you take off the brown (sol) wire at the starter relay in case the relay is intermittently engaging the starter then jump it at the starter to start it & retry it & if it still does it then replace the starter to elim that issue. I'm bothered by the 1 spark you saw & was a helper loading the eng as you eyeballed things under the hood?
The dome light does dim when it pops. I thought about disconnecting the relay. I'll add that to the list and see what happens.
When I saw the 1 spark, I was not loading the engine. I was by myself and the car was in park. I'll get my gf to give me a hand and we'll give that a try.
I also may try a different distributor, just to eliminate it... Or identify it as the problem.
Thanks again for the help. I appreciate it.
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Re: Coughing/popping when revved
[Re: Cab_Burge]
#1585426
03/03/14 03:17 PM
03/03/14 03:17 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Try disconnecting the vacume advance and see if it will help. I had a BB with the vacume hooked up two weeks ago that would do that with the vacume advanced hook up    
I was going to suggest something of this nature, but to check and make sure the vacuum advance was actually working, as I had a situation that drove me nuts for a while, the vacuum advance pin on the end of the arm popped out of the breaker plate...the engine would break up around the 1800 and up range, of course it's always the last thing on ya list of things to look for!  
mike
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Re: Coughing/popping when revved
[Re: Cab_Burge]
#1585427
03/03/14 03:18 PM
03/03/14 03:18 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
OP
master
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OP
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Sac, CA
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Quote:
Try disconnecting the vacume advance and see if it will help. I had a BB with the vacume hooked up two weeks ago that would do that with the vacume advanced hook up
Thanks for the input Cab. I've had the vacuum adv and PCV disconnected the whole time I've been trouble shooting this issue.
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Re: Coughing/popping when revved
[Re: mopowers]
#1585428
03/03/14 03:25 PM
03/03/14 03:25 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Quote:
When I saw the 1 spark, I was not loading the engine. I was by myself and the car was in park. I'll get my gf to give me a hand and we'll give that a try.
with you loading it if you hear a yelp come from under the hood then likely she has found (& can identify) the plug wire that is leaking voltage. Might be 2 problems, the starter and the plug wire/boot EDIT Do you have another coil laying around that you could sub in for a quick test? another dist also (phasing if it's phasing is different from the current one/pickup continuity issue)
Last edited by RapidRobert; 03/03/14 07:42 PM.
live every 24 hour block of time like it's your last day on earth
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Re: Coughing/popping when revved
[Re: RapidRobert]
#1585429
03/04/14 02:33 AM
03/04/14 02:33 AM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
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Joined: Sep 2006
Posts: 3,009
Sac, CA
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Quote:
Quote:
When I saw the 1 spark, I was not loading the engine. I was by myself and the car was in park. I'll get my gf to give me a hand and we'll give that a try.
with you loading it if you hear a yelp come from under the hood then likely she has found (& can identify) the plug wire that is leaking voltage. Might be 2 problems, the starter and the plug wire/boot EDIT Do you have another coil laying around that you could sub in for a quick test? another dist also (phasing if it's phasing is different from the current one/pickup continuity issue)
I don't have a spare coil or distributor, but I can get one of each and try them. I didn't get a chance to get out in the garage tonight. I plan on it tomorrow though. I'll let you know what I'm able to find out.
Thanks again for the help.
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Re: Coughing/popping when revved
[Re: GTX MATT]
#1585431
03/04/14 02:23 PM
03/04/14 02:23 PM
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Joined: Feb 2005
Posts: 528
SW CO
HemiSportFury
mopar
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mopar
Joined: Feb 2005
Posts: 528
SW CO
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What would make the starter spin? Makes me think of a wiring issue or bad ignition switch.
'64 Sport Fury, 528 Hemi, FiTech EFI, 4-speed, 4.10 Dana 60
'57 Belvedere 2dr sedan, current project in process
'19 Cherokee Trail Hawk Elite
'03 Ram 2500 CTD HO, 6-speed 214,000 miles and still going strong
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Re: Coughing/popping when revved
[Re: GTX MATT]
#1585432
03/04/14 03:32 PM
03/04/14 03:32 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
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Sac, CA
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Quote:
Try the other pickup.
I'm gonna replace the pickup tonight and check rotor phasing. I'll keep you guys updated.
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Re: Coughing/popping when revved
[Re: Paul_Fancsali]
#1585434
03/04/14 06:41 PM
03/04/14 06:41 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
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Quote:
Go to ignition switch where it pugs into main harness check and see if you have swollen /green corroded red color roughly 10 gauge wire. I have had that happen on two old mopars over the years
I'm sorry, but your post is a little difficult to understand. You're saying to look for a bad connection on the red wire plugging into the ignition switch connector at the dash?
When it happened to you, what kind of stuff was it doing? How was it acting?
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Re: Coughing/popping when revved
[Re: mopowers]
#1585437
03/06/14 03:45 AM
03/06/14 03:45 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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It does sound consistant with excessive timing but 35 is a tried & true SB norm plus you disconnected the vac adv for an even more conservative total & no change. I wonder if a valve is leaking badly (not sure tho & it sure sounds like ign). there's some connection as to why the dome light (system voltage) dims when it pops. Stay on it
live every 24 hour block of time like it's your last day on earth
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Re: Coughing/popping when revved
[Re: 440farmer]
#1585441
03/06/14 02:16 PM
03/06/14 02:16 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
OP
master
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OP
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Sac, CA
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Quote:
Check the cam
had a 383 dart and chased that popping just like you are doing
and had one lobe wiped
--Good luck
When that happened to you, was the popping intermittent? How did it idle? Was there a voltage drop when it 'popped?'
Thanks!
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Re: Coughing/popping when revved
[Re: skicker]
#1585442
03/06/14 02:21 PM
03/06/14 02:21 PM
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Joined: Sep 2006
Posts: 3,009
Sac, CA
mopowers
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Quote:
This reeks of something electrical to me. When I first read it I was thinking valvetrain but now I don't think so. If you can find another ignition switch and plug it in under the dash I would try it. Something about the voltage drop and dome light dimming has me thinking its either ignition or dash wiring related. Was there any dash cluster-switch wiring that looked a little hinky when you put it together? Someone here will know something. There is a ton of experience around.
I'm curious if the popping is caused by the voltage drop, or if the voltage drop is caused by the popping. I'm thinking maybe something is causing an intermittent voltage drop as i bring the rpms up, which is causing some ignition demons...
All the dash wiring looked fine when I was in there last year. I did replace the ammeter with a volt gauge. I've also done the ammeter bypass the have installed relays in the front headlights. I have a couple lose pins in the dash circuit board that I need to repair. But I was waiting until I fix this popping issue before I do that.
Thanks for the help. I appreciate the ideas. Keep em coming.
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