Team Camaro Tech join team camaro
 
Camaro Parts at SS396.com     
GROUND UP & SS396.com         
Official Sponsor of Team Camaro
   

Registered users (free) do not see these large ads

Test Drive! New to this area?
Get comfortable here by posting and editing your own messages.

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old Apr 17th, 07, 09:43 AM
jr little jr little is offline

JR
 
Join Date: Apr 2007
Location: ohio
Posts: 9
Default 69 Big block carbon fouling

I have an original 396 camaro with stock exhaust manifolds 2.5 in exhaust dual plane alluninum intake 780 holley I have tried new carbs and it keeps carbon fouling plugs Would hotter plugs help ? Maybe a spacer under the carb? The car is a factory 4 speed and i'm currentlly running a 308 rear gear for milage for the power tour. Any help would be great.
Little69
Reply With Quote
  #2  
Old Apr 17th, 07, 04:40 PM
jaguareats jaguareats is offline
Senior Tech

bill
 
Join Date: Jan 2007
Location: new jersey
Posts: 610
Default Re: 69 Big block carbon fouling

if carbon keeps fouling plugs than you need to get in it big time.put it in first go floor it to around 4500 rpms like you racing it need to blow it out. sounds like you drive like an old lady lol. also throw some tranny fluid down carb few teaspoons will smoke but it will loosten carbon up.than go drive.
Reply With Quote
  #3  
Old Apr 17th, 07, 06:27 PM
bearcat44 bearcat44 is offline
Senior Tech

David
 
Join Date: Jul 2005
Location: Ohio
Posts: 919
Default Re: 69 Big block carbon fouling

Where are you in Ohio Junior? I'm in the Lima area. Welcome to TC and here is a free bump! I would ditto what jaguar said and if that doesn't work then you may have a problem.
__________________
the learning curve is....expensive
Reply With Quote
  #4  
Old Apr 18th, 07, 06:14 AM
jr little jr little is offline

JR
 
Join Date: Apr 2007
Location: ohio
Posts: 9
Default Re: 69 Big block carbon fouling

Thanks for the help , I've driven to Texas and Florida and it runs good no fouling then, just in town driving maybe I do baby it to much . I live outside Dayton I 'll try anything .
JR
Reply With Quote
  #5  
Old Apr 18th, 07, 09:30 AM
Eric Kammerer Eric Kammerer is offline
Senior Tech

 
Join Date: May 2004
Location: Southeast PA
Posts: 6,623
Default Re: 69 Big block carbon fouling

Well, carbon fouling can be weak ignition, rich fuel mixture, or too cold on the plugs.

What ignition are you running? What heat range plug are you running?

If it doesn't foul at highway speed, I'd lean (pun intended) to it needing some carb adjustment; it sounds too rich in the idle circuit.

http://www.camaros.net/techref/articles/holley_1.htm
__________________
Eric
69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!
Reply With Quote
  #6  
Old Apr 18th, 07, 11:09 AM
Everett#2390's Avatar
Everett#2390 Everett#2390 is offline
Gold Lifetime Member

Drive a '68!
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 16,671
Default Re: 69 Big block carbon fouling

I'd go for a hotter plug, advance timing a hair, and stay one gear short of normal.

I'd also run a can of BG 44K in the fuel tank.
__________________
Give a man a rescue dog for the health of his soul.
My 68 Camaro http://www.flickr.com/photos/everettwn68
Reply With Quote
  #7  
Old Apr 19th, 07, 06:39 AM
jr little jr little is offline

JR
 
Join Date: Apr 2007
Location: ohio
Posts: 9
Exclamation Re: 69 Big block carbon fouling

The ignition is a petronix with high volt coil also from petronix plugs are AC r44 I think xls and accel wires . I'm also thinking of changing the rear gears to 3.55 s . What do you think ?
Reply With Quote
  #8  
Old Apr 19th, 07, 07:16 AM
Everett#2390's Avatar
Everett#2390 Everett#2390 is offline
Gold Lifetime Member

Drive a '68!
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 16,671
Default Re: 69 Big block carbon fouling

I'd go to, at least, an AC 45 plug. The higher the AC number, the hotter the plug.
__________________
Give a man a rescue dog for the health of his soul.
My 68 Camaro http://www.flickr.com/photos/everettwn68
Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Big Block vs Small Block P.S. pump RaisinCayne Brakes, Suspension & Steering 5 Nov 27th, 06 06:19 AM
Big Block Heater Core vs Small Block Heater Core South Side Goons & Hitmen Heating & Cooling 1 Nov 12th, 06 01:12 PM
69 Big block shifter rods TOM BARKLEY Transmission & Driveline 0 Jun 2nd, 06 11:24 PM
69 big block convt on ebay?? TENZS Bench Racing 3 May 18th, 06 06:27 AM
Carb Dates DZ Fool Tag Team 16 Apr 2nd, 06 12:44 PM


All times are GMT -7. The time now is 12:06 AM.


Camaros.net - © 2009 AutoForums.com