83kid
Full Access Member
- Joined
- Apr 13, 2014
- Posts
- 321
- Reaction score
- 1
- Location
- Massachusettes
- First Name
- John
- Truck Year
- 1983
- Truck Model
- k10
- Engine Size
- 350
Hi,
So i have a 5.7 350, seeming to be out of a '90 truck:
edelbrock 1406 carb, on a holley street dominator intake (probably swapped the intake so as to not have to add all the EFI crap into this truck)
Used to run fine for a good while.
Then one day like 6 months ago it dieseled, and continued to do so each time i shut it off
Just shut it off in gear for a while, then i adjusted the idle screw so it wouldnt diesel - idled too low in gear then.
Adjusted the mixture screws, and idle screw, and after changing them around a good 5 or 6 times i cant get it to stay going good
Ill adjust it (according to online directions of edelbrock for this carb), and itll all be set. I live in new england, so i set it hot in the afternoon, then like the next day say in the morning when its a little cooler i go to accelerate shortly after starting and it doesnt want to, you can give it a little throttle and its a few seconds delay before the engine reacts - it kind of bogs when you first give it gas. Once truck is warm, no problem. Later in the day, this issue mostly goes away, but most of the day its still a little there, when its hotter out, but only immediatly after starting truck and driving.
Cant get the idle speed right even with adjusting the screws, if it runs good in gear and driving around, itll diesel.
Idles low enough to not diesel i have to give it a little gas to keep it from dieing out in gear.
Possible vacuum leak... has a little bit of that noise when standing with the hood open, but i wouldnt exactly rely on that as the problem
Any ideas?
So i have a 5.7 350, seeming to be out of a '90 truck:
edelbrock 1406 carb, on a holley street dominator intake (probably swapped the intake so as to not have to add all the EFI crap into this truck)
Used to run fine for a good while.
Then one day like 6 months ago it dieseled, and continued to do so each time i shut it off
Just shut it off in gear for a while, then i adjusted the idle screw so it wouldnt diesel - idled too low in gear then.
Adjusted the mixture screws, and idle screw, and after changing them around a good 5 or 6 times i cant get it to stay going good
Ill adjust it (according to online directions of edelbrock for this carb), and itll all be set. I live in new england, so i set it hot in the afternoon, then like the next day say in the morning when its a little cooler i go to accelerate shortly after starting and it doesnt want to, you can give it a little throttle and its a few seconds delay before the engine reacts - it kind of bogs when you first give it gas. Once truck is warm, no problem. Later in the day, this issue mostly goes away, but most of the day its still a little there, when its hotter out, but only immediatly after starting truck and driving.
Cant get the idle speed right even with adjusting the screws, if it runs good in gear and driving around, itll diesel.
Idles low enough to not diesel i have to give it a little gas to keep it from dieing out in gear.
Possible vacuum leak... has a little bit of that noise when standing with the hood open, but i wouldnt exactly rely on that as the problem
Any ideas?