Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

No start/hard start, engine cold or hot:

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Kenth:

--- Quote from: fussfeld on July 07, 2021, 04:56:03 AM ---Anyways, then, what's the best way to check the ignition?

--- End quote ---

With engine running, check the voltage at BAT post on HEI.
Should be the same as over + and - on battery.

fussfeld:

--- Quote from: 73ss on July 11, 2021, 06:31:37 PM ---Sounds about normal. factory HEI setup or originally points?

--- End quote ---

HEI

fussfeld:
UPDATE:

i basically got it (somehow) back to normal:  It starts within 1-2 crankshaft revolutions.

All i did different was to take the idle tubes out, blow them out with compressed air and ran a wire thru them.  Also, blew the area below the idle tubes (idle wells?) out.

i'm not 100% convinced this solved the problem because i did not see dirt or debris come out.

Nevertheless, the cold no start/hard start seems to be solved?


i was previously afraid to take the tubes out because i had never done it before.   But i followed the directions in the book and they came out rather easy.

 

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