keithm
New Member
- Joined
- Mar 1, 2011
- Messages
- 97
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 90 Ranger with
- Make / Model
- ford
- Transmission
- Manual
84 model motor, 289. Edelbrock intake , 625 carter afb, aod trans.
This may be more of a question for the mustang group. After a routine carb clean and tune up, I now have an off idle surge, it seemed to start at a gentle steady cruise around 1500 rpms. And was gone by 1800. My thought were the metering springs were to light and caused the vacuum to hold the pistons down leaning the mixture. I did a once over and noticed the metering springs were different lengths, so I installed the base setup orange springs started it up and went for a ride, once it was at temp. I noticed the same issue. I'm thinking of trying an even stiffer spring.
Anybody run into that before?
This may be more of a question for the mustang group. After a routine carb clean and tune up, I now have an off idle surge, it seemed to start at a gentle steady cruise around 1500 rpms. And was gone by 1800. My thought were the metering springs were to light and caused the vacuum to hold the pistons down leaning the mixture. I did a once over and noticed the metering springs were different lengths, so I installed the base setup orange springs started it up and went for a ride, once it was at temp. I noticed the same issue. I'm thinking of trying an even stiffer spring.
Anybody run into that before?