2 barrel carb help
Thread Starter
|
New User
Joined: Feb 2010
Posts: 17
Likes: 0
From: Loveland co
2 barrel carb help
My 75 250 4x4 has been running rich sense the day I bought it (about 2 months ago) and today was the first chance I had to really get in there and get dirty. I removed the carb and went to the parts store and purchased a rebuild kit. Everything was way out of adjustment. Upon re-assembly and setting everything on the carb to what the kit said I fired up the truck and adjusted the idle it ran much better however it was still running rich so I adjusted the flow screws until I had them all the way screwed in and I could not tighten them anymore and my truck is still running rich.
I have checked the float and put a new needle and seat in with the kit. I am baffled.
I have checked the float and put a new needle and seat in with the kit. I am baffled.
Elder User
Joined: Nov 2003
Posts: 778
Likes: 2
From: southeast Idaho
With the mixture screws all the way in it really shouldn't run at all unless the throttle is too far open for them to function properly or there is a vacuum leak Might check your power valve if you have one, make sure the gasket is on properly and that its a good one. Unhook and plug all vacuum connections when setting everything, that way if something does not work right you will know that it is the carb and not a bad hose somewhere else. Did you soak the carb in cleaner and blow everything out with compressed air? Anything less often is inadequate for the job..
Thread Starter
|
New User
Joined: Feb 2010
Posts: 17
Likes: 0
From: Loveland co
I did soak everything but the rubber parts in carb cleaner. Then blew it all out and I did re connect the vacuum hoses, and put them all back to the port where they belong. The thing that is really confusing me is I have the adjustment screws in all the way and it should be killing the motor for lack of fuel however it will idle fine for about 1 min then start loading up.
Thread
Thread Starter
Forum
Replies
Last Post
Grot
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
14
Feb 1, 2011 03:42 PM
Tesch101
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
5
Dec 6, 2005 11:15 PM
Ratsmoker
1973 - 1979 F-100 & Larger F-Series Trucks
5
Apr 13, 2001 06:25 PM
