Need to adjust amount of gas into engine
10-12-2006, 12:50 PM
#1
Thread Starter
Join Date: Oct 2006
Posts: 19
Need to adjust amount of gas into engine
I have an eldebrook carb and there is too much gas going into the engine how do i adjust it?
thanks for the help
yes i am new to the american cars....
pics are too big so go here:
http://www.unrealconcept.com/pics/
chris
thanks for the help
yes i am new to the american cars....
pics are too big so go here:
http://www.unrealconcept.com/pics/
chris
10-12-2006, 04:42 PM
#4
2nd Gear Member
Join Date: Jul 2005
Location:
Posts: 351
RE: Need to adjust amount of gas into engine
http://www.edelbrock.com/automotive/eps_sect2.html#ref
This is a step by step guide to the carb if you think you can do it. If you are feeling iffy let someone who knows what they are doing show how to do it the right way.
This is a step by step guide to the carb if you think you can do it. If you are feeling iffy let someone who knows what they are doing show how to do it the right way.
10-12-2006, 04:51 PM
#5
5th Gear Member
Join Date: Jun 2005
Location: Michigan
Posts: 3,986
RE: Need to adjust amount of gas into engine
Um...get a smaller carb. What size are you running? If its a 750, its WAY too big for a 302. A 600 is all a 302 needs, unless your motor is VERY radical.
-P.
-P.
10-12-2006, 08:46 PM
#7
3rd Gear Member
Join Date: Jul 2005
Location:
Posts: 509
RE: Need to adjust amount of gas into engine
bryanec that is a great site !!!
Well, to find out what you have there should be a number stamped somewhere on the carb......
I agree that if it is a 750 it is to big for a 302.
There may just be something wrong with the carb itself. It depends on how rich we are talking about.
"somewhat rich" - could just be the idle adjustement screws pulled out too far.
"more rich than that" - a loaded float, stuck needle, ruptured pump diaphragm, stuck power valve or simply jetted wrong.
You could have a carb that needs rebuilding or a good carb that is just wrong for the motor.
Also remember that if the motor is not burning the fuel it gets it could seem like it is a carburator problem.
How is everything else on the motor ?
Well, to find out what you have there should be a number stamped somewhere on the carb......
I agree that if it is a 750 it is to big for a 302.
There may just be something wrong with the carb itself. It depends on how rich we are talking about.
"somewhat rich" - could just be the idle adjustement screws pulled out too far.
"more rich than that" - a loaded float, stuck needle, ruptured pump diaphragm, stuck power valve or simply jetted wrong.
You could have a carb that needs rebuilding or a good carb that is just wrong for the motor.
Also remember that if the motor is not burning the fuel it gets it could seem like it is a carburator problem.
How is everything else on the motor ?
10-17-2006, 05:45 PM
#8
Thread Starter
Join Date: Oct 2006
Posts: 19
RE: Need to adjust amount of gas into engine
I found out that i have a Performer Series; Carb; 600cfm; Sq-Flange; Elec.Choke; w/o EGR; Incl. Prim. Jet-0.098; Sec. Jet-0.095; Metering Rod-0.075x0.047; Adv.Dur @ .050 Up To 200°; Dual Plane Intk, link is below.
now how would i tune it to run good.
http://www.edelbrock.com/tech/index.html
thanks
chris
now how would i tune it to run good.
http://www.edelbrock.com/tech/index.html
thanks
chris
10-17-2006, 06:07 PM
#9
3rd Gear Member
Join Date: Jul 2005
Location:
Posts: 509
RE: Need to adjust amount of gas into engine
What I would do
Make sure ignition system is ok - wires not fried, crunched or not installed properly.
Ditributior cap not cracked or with moisture inside.
Rotor not burned up or broken.
Should have a strong spark. ( U need insulated pliers to check this )
Coil tower need to be clean and dry.
Make sure choke is wide open with engine warm.
Make sure with engine idling there is no fuel dripping into the carb barrels. Any fuel U see going into the motor should be like mist almost. If it is dripping could be a leak, high fuel level or the carb is too big for the motor and or the cam used.
If U find the carb is dripping check the engine vacum using a gage.
Driping carb could be just dirty so spray it with carb cleaner with engine running and tighten the top bolts.
Contact Edelbrock and ask them if your carb is too big for a 302
Make sure ignition system is ok - wires not fried, crunched or not installed properly.
Ditributior cap not cracked or with moisture inside.
Rotor not burned up or broken.
Should have a strong spark. ( U need insulated pliers to check this )
Coil tower need to be clean and dry.
Make sure choke is wide open with engine warm.
Make sure with engine idling there is no fuel dripping into the carb barrels. Any fuel U see going into the motor should be like mist almost. If it is dripping could be a leak, high fuel level or the carb is too big for the motor and or the cam used.
If U find the carb is dripping check the engine vacum using a gage.
Driping carb could be just dirty so spray it with carb cleaner with engine running and tighten the top bolts.
Contact Edelbrock and ask them if your carb is too big for a 302