69 QJet
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Joined: Nov 2011
Posts: 53
Likes: 0
From: Lynnwood WA
Below is a response I got from 7T1Vette on the subject. I had my carb rebuilt professionally, just got the car back yesterday with a big improvement in performance and driveability.
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Buy the Chevrolet Chassis Service Manual for 1969 and adjust the carb and choke per the procedures in that manual.
If the carb is original to the car, you just need a rebuild kit (NAPA, Echlin kit for your carb part number...found stamped into the left/rear corner post of the carb). Also buy a brass float for the carb P/N and dunk it in a mug of water to check for any air bubbles (possible leaks).
Since the carb is correct for the car, you don't need to buy it, but getting a copy of Cliff Ruggles' "How to Rebuild and Modify the Quadrajet Carburetor" is very informative and has good tips on rebuilding the Q-jet. And, you might even improve it [per Ruggles' tips] from the original factory build.
Hand tools, a clean workbench and a good light source...along with a can of Carb Cleaner....should be all you need.
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Buy the Chevrolet Chassis Service Manual for 1969 and adjust the carb and choke per the procedures in that manual.
If the carb is original to the car, you just need a rebuild kit (NAPA, Echlin kit for your carb part number...found stamped into the left/rear corner post of the carb). Also buy a brass float for the carb P/N and dunk it in a mug of water to check for any air bubbles (possible leaks).
Since the carb is correct for the car, you don't need to buy it, but getting a copy of Cliff Ruggles' "How to Rebuild and Modify the Quadrajet Carburetor" is very informative and has good tips on rebuilding the Q-jet. And, you might even improve it [per Ruggles' tips] from the original factory build.
Hand tools, a clean workbench and a good light source...along with a can of Carb Cleaner....should be all you need.
Melting Slicks
Joined: Apr 2006
Posts: 2,084
Likes: 14
From: Airdrie Alberta
you just need a rebuild kit (NAPA, Echlin kit for your carb
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Melting Slicks
Joined: Aug 2004
Posts: 2,480
Likes: 12
From: New York
The carb was professionally rebuilt. I believe the timing in the car has to be set. There is also a vacuum leak as there is a slight whistle at idle (base plate gasket) and upon shutting off the car there is a hissing as pressure is realized....
Dave
Dave
Burning Brakes
Joined: Apr 2011
Posts: 975
Likes: 108
From: Phoenix, AZ
