Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem
nozzle drip again
bsblguy:
Timing is retarding some when put in gear, what do I do to fix that? Over 40 years working on cars never had this issue before. There was a spring kit with the dist. Do I need to change springs?
I warmed it up , set idle at 700 in park, reset timing for 15 and it definitely liked that better. So right now set idle speed for 650 in drive, ac on, ac off goes to 710, in park goes to 1020. Timing changes a few degrees from drive to park. At least now it is stable in drive where I don't feel it may stall and before I did. Have not driven it yet.
bsblguy:
Changed springs in dist. Now timing stays same from neutral to drive. RPM doesn't drop as much from neutral to drive or when ac turned on. Still have a little bit of a rough idle, not lope from cam. At least I can drive it again.
68 Firebird:
Chased the same timing issue for a while before I realized what was really going on in my HEI.
I put some heavy factory HEI springs in and never looked back. Timing now steady cold and hot.
Timing is now all in my 3400-3500 rpms and NO pinging, using ported source as it has best idle and
reduced rpm drop when placed into drive. Also noticed the 13"Continetal Converter I am now using has less
rpm drop going to drive and better all around street manners.
Gerry
bsblguy:
Added a little more bypass air and adjusted, now about as good as it's going to get. Can pull a vacuum line at idle and does not increase speed. Test drove and performs very well.
Thanks.
omaha:
Great! I think we all learned something from this one! I would have not thought of the dizzy springs being bad and causing fluctuation. I agree also that a looser convertor would help in certain situations.
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