86AZBurb
Junior Member
- Joined
- Jul 18, 2021
- Posts
- 6
- Reaction score
- 1
- Location
- Arizona
- First Name
- Chris
- Truck Year
- 1986
- Truck Model
- K10 Suburban
- Engine Size
- 350
Hi folks! Looking for some opinions before I have her towed into a shop to get smoothed out. Bought her about 3 weeks ago, she ran smooth and everything seemed good. I took it to get emissions, failed on CO by a lot. I then found this forum via
https://www.gmsquarebody.com/threads/edelbrock-1406-failed-emissions.16563/page-4
and used Rich's recommendations as Val seemed to have the same issue as me. I rebuilt the carb, .92 mains .95 primaries, 7"hg springs. replaced all gaskets, new rubber on the accel pump, set floats per standard. put it back on, fired up the truck and it ran, but bogged on throttle. However it ran. The very next day, I went to try and tune it a bit better with the screws, and it would not fire up and back fired. this was last Friday, and I was leaving out of town for the weekend, so i left it till yesterday. come home, fire it up again, and the video I have is how it's running now. One other thing i discovered was the Dist hold down bolt was loose, so it may have moved. Is this a timing issue, lean issue, or rich issue. I think it's either a lean or timing(not my forte, so I may have to shop it anyways). It doesn't seem to be getting fuel on throttle. Any advice pointing me in the right direction would be welcome. I will also provide any more details I can.
https://www.gmsquarebody.com/threads/edelbrock-1406-failed-emissions.16563/page-4
and used Rich's recommendations as Val seemed to have the same issue as me. I rebuilt the carb, .92 mains .95 primaries, 7"hg springs. replaced all gaskets, new rubber on the accel pump, set floats per standard. put it back on, fired up the truck and it ran, but bogged on throttle. However it ran. The very next day, I went to try and tune it a bit better with the screws, and it would not fire up and back fired. this was last Friday, and I was leaving out of town for the weekend, so i left it till yesterday. come home, fire it up again, and the video I have is how it's running now. One other thing i discovered was the Dist hold down bolt was loose, so it may have moved. Is this a timing issue, lean issue, or rich issue. I think it's either a lean or timing(not my forte, so I may have to shop it anyways). It doesn't seem to be getting fuel on throttle. Any advice pointing me in the right direction would be welcome. I will also provide any more details I can.
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