beags86
Eastbound and Down
just swap a 1406?
Eh?
CK5
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Rebuilt quadrajet won't start.
- Thread starter black rust
- Start date
Eh?
beags86
Eastbound and Down
just swap a 1406?
Eh?
79rustyk10
3/4 ton status
No. Never. Lol.
Sounds like a no/low fuel issue. Probably varnish blocking needle and seat, and or idle circuit
86jimmyoregon
Registered Member
What is idle circuit and replaced needle and seat
there are 7 different fuel circuits in a carburetor. Idle circuit allows gas and air to mix and enter engine while throttle plates are closed or almost closed.
The screw on driver side of carb sets speed or opening of throttle plate, 2 screws in front bottom set amount of gas air mix.
So if you replaced needle and seat did you have the rest apart? new gaskets accel pump? what measurement did you set float level?
many times the front two bolts on qjets are over tightened, by someone this warps the air horn and bowl sections, virtually destroying the carb.
this warping allows the gas in the bowl by pass proper pathways and all sorts of poor running symptoms.
The screw on driver side of carb sets speed or opening of throttle plate, 2 screws in front bottom set amount of gas air mix.
So if you replaced needle and seat did you have the rest apart? new gaskets accel pump? what measurement did you set float level?
many times the front two bolts on qjets are over tightened, by someone this warps the air horn and bowl sections, virtually destroying the carb.
this warping allows the gas in the bowl by pass proper pathways and all sorts of poor running symptoms.
86jimmyoregon
Registered Member
New gaskets new Accel pump well rebuilt yes float measurement no. I read on that last night my question is the way my float mounts how could it change as I'm using old float and sir ty so much
Float is one of the most important measurements on a rebuild. It's been a while since I had done a carb but I seem to remember that you bend it to the right level?
86jimmyoregon
Registered Member
Yes you do k going to remove carb and do some work will let u knowFloat is one of the most important measurements on a rebuild. It's been a while since I had done a carb but I seem to remember that you bend it to the right level?
if you didn't already, run some spray cleaner, and compressed air through all the passages while you have off and apart. the float level should be set between 7/16 and 11/32 from top of bowl housing at tip of float(opposite of needle and seat side) I like to use 11/32 seems to work better with modern fuel blends.
