Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Rich at idle

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Cliff Ruggles:
Every kit I put together here has the specific gaskets in it based on the carburetor part number to eliminate confusion.  I recommend the SR kit.

Our kits also come with a new plastic retainer for the power piston and a complete accl pump assembly with new springs and lifetime warranty custom made seal on the pump.

The SR and HP kits will also have the secondary cam and spring, plus a new filter/spring and closed cell float.

It's not common for the later carbs to leak but the bottom plugs should be pressure tested.  If you used JB Weld over them it will leak right past it as it is not a fuel grade epoxy.  I see this with every single one that comes in here that has JB Weld on them.   The repair looks good, but they fail a high pressure air test 100 percent of the time.

There are other reasons you don't have control with the mixture screws, but it's difficult to help if you used the wrong parts/low quality parts to assemble it.......Cliff

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