Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Q-jet blowing fuel out top upon startup - floods easily cold

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wcumagic:
She starts easy as heck cold at 18 and idles nicely.  I have no fuel blowing out of the carb and almost no oil blowing out the vent. 

TDC COULD be off, but we did the best we could with the heads off to find TDC and mark it good on the balancer since there is no key on these.

Mr.Pontiac:
WOW! .145 DIA.  seat, shoot i have .135 and i think its alot. May i ask you please, have you checked your needle against your seat to make sure its sealing when closed. 1/4 float setting also?? Original float?? if not check the bouyancy, not leaking??

wcumagic:
Thanks for all the responses.  Seems I just needed to get thoughts out of my head and figure it out.  It starts nice at 18 degrees.  First time, every time for a week or more now.  cold or hot.  No oil flying out the vent hole, or fuel blowing out the carb.  The car is my daily driver now since my Chrysler pooped out. 

May I address a few comments -

Mr Pontiac - yes .145 seat.  When I ordered it, my decision was based on Cliffs book, page 101.  That and I dont think I could find a .135 at the time.  Anywho, like everything else I've done to this carb, it came from the book.  I did test it when I put it on and it sealed nice.  I changed the float to a smaller one so there could be a little more fuel in there because I have a heavy foot. 

Omaha, - I have not done a cranking pressure test or a leakdown.  I'm running on the fact that I saw the inside of the motor just a few thousand ago and it was beautiful.  No catches.  Honing lines clearly visible.  Thanks for suggesting the timing, as it turned out to be.  I dont know how I could have gotten it wrong.  When the head was off, we put a guage up on the block and found the plateau in height where the piston is at the top and TDC was put right in the middle of that on the balancer. 

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