An Ongoing Problem
Hi I own a 83 Chevy Scottsdale with the 305. Ever since I got it has been hesistant. I just rebuilt the third carb (Rochester Quadrajet) on it, and it runs worse, and now surges around 30 to 40. When I floor it it runs fine. Could this be a faulty accelerator pump or bad bushings? I also just replaced the distributor. Would it be better to replace the carb with a 650 cfm Edelbrock or replace the accelerator pump, or is not a fuel problem?
Thanks |
Im leaning towards vacum leak. Use some starter fluid to spray around the base of the carb to see of the idle goes up while doing this.
|
Thanks, I'll try that.
|
It seemed to go up in rpm when I did that. What should I do from here?
|
Ok that means there is a vacum leak which means its pulling air from where it shouldn't be. Try and pinpoint with that spray by throwing short bursts.
|
I got it fixed. It ended up being the combination of the Distributor and Carb. I love the way it runs, but is there any way I could get the gas mileage back to the 13 to 15 mpg I used to be getting? Thanks
|
Well its hard to fine tune the mixture on carbs but it can be done. Use a wideband O2 sensor and air fuel ratio guage.
|
Ok, thank you... I have Dyno close to me, would it be good to take it up there and tune it? Thanks
|
Im sure they have that equipment to do that.
|
All times are GMT -5. The time now is 12:30 PM. |
© 2024 MH Sub I, LLC dba Internet Brands