Keep Fouling plugs....need help
#1301626
09/10/12 08:24 PM
09/10/12 08:24 PM
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Joined: Feb 2003
Posts: 1,679 Mansfield,Ohio
moparrulzzz
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,679
Mansfield,Ohio
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I just recentley got my car finished and drivable.On one of many drives around the block getting things in order it started popping like firecrackers going off especially bad on hard acceleration. Shortly after I had a voltage regulator go bad, burnt a hole in the rubber/tar crap on back. Replaced the VR thinking that was causing my problem. Didn't so I pulled the plugs(fouled) and replaced them and my motor woke up, starts right up now popping gone. Drove it to local show (14 miles) total and almost home starts popping again(Bad) Pulled #8 and #1 plugs and fouled out I am running Champion RC12YC and was told to try running them at .040 gap. 1st set were at .035 I am running the 440 source heads, 10.86:1 compression, timing at 34*, Holley Ultra Street Avenger 770CFM and 4 corner Idle, Runs 175* driving and 185* at idle. Choke is operating and pulling completely off, when starting it cold I get a little puff of blue smoke till it warms up, also Hughes HEH3742BL if it matters. With all this info am I running the right plugs or is this a carb issue? Carb was opened up and gone thru and all ok.Put in a lighter power Valve. Can anyone point me in the right direction here? BTW when issue 1st started verified #5 and #7 wires were correct and not cross firing also checked wiring and coil, all ok. I do have a MSD 6AL box and MSD Blaster Coil waiting to be installed. Thnx Guys!!!
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Re: Keep Fouling plugs....need help
[Re: moparrulzzz]
#1301630
09/10/12 08:38 PM
09/10/12 08:38 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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Is the motor fresh? If so there shouldn't be any puff of blue smoke on start-up, should there? That seems a symptom of bad valve guides or seals. Maybe you have oil getting in where it shouldn't? Have you confirmed what is fouling the plugs? Just a thought.
I have mechanical Aptitude. I can screw up anything.
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Re: Keep Fouling plugs....need help
[Re: bboogieart]
#1301632
09/10/12 08:59 PM
09/10/12 08:59 PM
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Joined: Apr 2010
Posts: 4,154 bethlehem pa
mikemee1331
master
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master
Joined: Apr 2010
Posts: 4,154
bethlehem pa
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Quote:
Is the motor fresh? If so there shouldn't be any puff of blue smoke on start-up, should there? That seems a symptom of bad valve guides or seals. Maybe you have oil getting in where it shouldn't? Have you confirmed what is fouling the plugs? Just a thought.
are you sure it's blue and not just 'smokey' until it warms up? it might sound silly but i would smell it to see if it's oily smelling or just gassy smelling. that sounds so ridiculous !!
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Re: Keep Fouling plugs....need help
[Re: moparrulzzz]
#1301634
09/10/12 10:39 PM
09/10/12 10:39 PM
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Joined: Nov 2003
Posts: 12,521 Western Colorado High Desert
moparmarks
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 12,521
Western Colorado High Desert
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Oil or carbon fouled plugs? If carbon then is ignition problem or carb is dumping to much gas. Any exhaust smoke? If so what color. Really should take a vacuum reading then choose the power valve. Plug wires? New and not touching the exhaust anywhere?
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, . Moparmarks Parts & Restorations Desert Mopar Metal Grand Jct. CO 970-261-7039 http://moparmark.com/motormangj@gmail.com
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Re: Keep Fouling plugs....need help
[Re: moparmarks]
#1301636
09/10/12 11:12 PM
09/10/12 11:12 PM
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Joined: Feb 2003
Posts: 1,679 Mansfield,Ohio
moparrulzzz
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,679
Mansfield,Ohio
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Quote:
Oil or carbon fouled plugs? If carbon then is ignition problem or carb is dumping to much gas. Any exhaust smoke? If so what color. Really should take a vacuum reading then choose the power valve. Plug wires? New and not touching the exhaust anywhere?
Carbon Fouled, get blueish colored smoke when starting cold but doen not smell like oil burning, only lasts a second or two. I figured it was rich from choke being closed. Plug wires are new, everything is new!! Wires are not touching the headers. I fouled a set of plugs out in 14 miles of cruising 35 MPH avg, goosed it a couple times.
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Re: Keep Fouling plugs....need help
[Re: moparrulzzz]
#1301638
09/10/12 11:25 PM
09/10/12 11:25 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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either oil sucked up past the valley pan or carb issue
live every 24 hour block of time like it's your last day on earth
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Re: Keep Fouling plugs....need help
[Re: RapidRobert]
#1301641
09/10/12 11:28 PM
09/10/12 11:28 PM
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Joined: Feb 2003
Posts: 1,679 Mansfield,Ohio
moparrulzzz
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,679
Mansfield,Ohio
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Quote:
either oil sucked up past the valley pan or carb issue
Are you referring the oil being sucked up past the valley pan as a oil foul condition?? I have a carbon fouling problem.
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Re: Keep Fouling plugs....need help
[Re: RobX4406]
#1301643
09/10/12 11:39 PM
09/10/12 11:39 PM
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Joined: Feb 2003
Posts: 1,679 Mansfield,Ohio
moparrulzzz
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,679
Mansfield,Ohio
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Quote:
What rpm is it idling, and what is the timing when it's idling?
I'm going to guess it wants to idle around 1K.
Put a timing light on it and find out where it's timed at idle..
Disconnect and plug the vac advance when doing this and don't hook it back up until you get it sorted out.
You are correct on the idle, in park 975-1000 The vaccum advance is unhooked. Guy who built the motor put light springs (MP)in it. I believe at idle it is at 34*
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Re: Keep Fouling plugs....need help
[Re: moparrulzzz]
#1301644
09/10/12 11:43 PM
09/10/12 11:43 PM
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Joined: Apr 2005
Posts: 12,271 Overpriced Housing Central
RobX4406
I Live Here
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I Live Here
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
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Quote:
I believe at idle it is at 34*
I doubt that if it has springs in it.
If it smells like a fuel factory out the tailpipes, it's not close...
I wouldn't mess with anything else until you know where the idle/initial timing is set.
If you reach in at idle and twist the distributor clockwise and it picks up RPM, it want the timing you just twisted in.
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Re: Keep Fouling plugs....need help
[Re: RobX4406]
#1301645
09/10/12 11:51 PM
09/10/12 11:51 PM
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Joined: Feb 2003
Posts: 1,679 Mansfield,Ohio
moparrulzzz
OP
top fuel
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OP
top fuel
Joined: Feb 2003
Posts: 1,679
Mansfield,Ohio
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Quote:
Quote:
I believe at idle it is at 34*
I doubt that if it has springs in it.
If it smells like a fuel factory out the tailpipes, it's not close...
I wouldn't mess with anything else until you know where the idle/initial timing is set.
If you reach in at idle and twist the distributor clockwise and it picks up RPM, it want the timing you just twisted in.
Ok tomorrow when I get off I will put a light on it. Thnx for the help, will update ya on what I come up with!
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