hey guys,
85 olds cutlass, 3.8. whole car is stock with no mods.
just installed a rebuilt carb from J&J to solve my previous idling issues. iv been able to put some miles on the car now and its pretty nice except for just off idle. it will fall on its face, some times worse then others. if you powerbrake the car you can increase load little by little and then it will just fall on its face. almost seems too "precise" to be a carb issue but never the less i contacted J&J and was given some recommendations but nothing has helped. heres what i have done:
verified air bleed valve set to 1.75" from compressed MC solenoid
adjusted idle mixture screws to obtain 30 degrees MC dwell
road tested with no change
adjusted MC solenoid stop for a little richer mixter per j&j - no change
adjusted for a little leaner mixture - no change.
basic things that led up to carb diagnoses have been done like intake gaskets and vacuum leak checked etc
right now im going to slap in a better quality set of plugs and a new coil but i figured i would see what you guys think.
85 olds cutlass, 3.8. whole car is stock with no mods.
just installed a rebuilt carb from J&J to solve my previous idling issues. iv been able to put some miles on the car now and its pretty nice except for just off idle. it will fall on its face, some times worse then others. if you powerbrake the car you can increase load little by little and then it will just fall on its face. almost seems too "precise" to be a carb issue but never the less i contacted J&J and was given some recommendations but nothing has helped. heres what i have done:
verified air bleed valve set to 1.75" from compressed MC solenoid
adjusted idle mixture screws to obtain 30 degrees MC dwell
road tested with no change
adjusted MC solenoid stop for a little richer mixter per j&j - no change
adjusted for a little leaner mixture - no change.
basic things that led up to carb diagnoses have been done like intake gaskets and vacuum leak checked etc
right now im going to slap in a better quality set of plugs and a new coil but i figured i would see what you guys think.